Remove VR hardware support.

This resolves #881

99 files changed, 6 insertions, 15647 deletions

diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index 79b36a314..3760dc43f 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -145,7 +145,6 @@
 #include "mozilla/dom/KeyframeEffectBinding.h"
 #include "mozilla/dom/WindowBinding.h"
 #include "mozilla/dom/ElementBinding.h"
-#include "mozilla/dom/VRDisplay.h"
 #include "mozilla/IntegerPrintfMacros.h"
 #include "mozilla/Preferences.h"
 #include "nsComputedDOMStyle.h"
diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
index 1bc4f82f4..286cd0e79 100644
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -44,7 +44,6 @@
 #include "mozilla/dom/ServiceWorkerContainer.h"
 #include "mozilla/dom/StorageManager.h"
 #include "mozilla/dom/TCPSocket.h"
-#include "mozilla/dom/VRDisplay.h"
 #include "mozilla/dom/workers/RuntimeService.h"
 #include "mozilla/Hal.h"
 #include "nsISiteSpecificUserAgent.h"
@@ -1471,83 +1470,6 @@ Navigator::RequestGamepadServiceTest()
 }
 #endif
 
-already_AddRefed<Promise>
-Navigator::GetVRDisplays(ErrorResult& aRv)
-{
-  if (!mWindow || !mWindow->GetDocShell()) {
-    aRv.Throw(NS_ERROR_UNEXPECTED);
-    return nullptr;
-  }
-
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-  win->NotifyVREventListenerAdded();
-
-  nsCOMPtr<nsIGlobalObject> go = do_QueryInterface(mWindow);
-  RefPtr<Promise> p = Promise::Create(go, aRv);
-  if (aRv.Failed()) {
-    return nullptr;
-  }
-
-  // We pass mWindow's id to RefreshVRDisplays, so NotifyVRDisplaysUpdated will
-  // be called asynchronously, resolving the promises in mVRGetDisplaysPromises.
-  if (!VRDisplay::RefreshVRDisplays(win->WindowID())) {
-    p->MaybeReject(NS_ERROR_FAILURE);
-    return p.forget();
-  }
-
-  mVRGetDisplaysPromises.AppendElement(p);
-  return p.forget();
-}
-
-void
-Navigator::GetActiveVRDisplays(nsTArray<RefPtr<VRDisplay>>& aDisplays) const
-{
-  /**
-   * Get only the active VR displays.
-   * Callers do not wish to VRDisplay::RefreshVRDisplays, as the enumeration may
-   * activate hardware that is not yet intended to be used.
-   */
-  if (!mWindow || !mWindow->GetDocShell()) {
-    return;
-  }
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-  win->NotifyVREventListenerAdded();
-  nsTArray<RefPtr<VRDisplay>> displays;
-  if (win->UpdateVRDisplays(displays)) {
-    for (auto display : displays) {
-      if (display->IsPresenting()) {
-        aDisplays.AppendElement(display);
-      }
-    }
-  }
-}
-
-void
-Navigator::NotifyVRDisplaysUpdated()
-{
-  // Synchronize the VR devices and resolve the promises in
-  // mVRGetDisplaysPromises
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-
-  nsTArray<RefPtr<VRDisplay>> vrDisplays;
-  if (win->UpdateVRDisplays(vrDisplays)) {
-    for (auto p : mVRGetDisplaysPromises) {
-      p->MaybeResolve(vrDisplays);
-    }
-  } else {
-    for (auto p : mVRGetDisplaysPromises) {
-      p->MaybeReject(NS_ERROR_FAILURE);
-    }
-  }
-  mVRGetDisplaysPromises.Clear();
-}
-
-void
-Navigator::NotifyActiveVRDisplaysChanged()
-{
-  NavigatorBinding::ClearCachedActiveVRDisplaysValue(this);
-}
-
 //*****************************************************************************
 //    Navigator::nsIMozNavigatorNetwork
 //*****************************************************************************
diff --git a/dom/base/Navigator.h b/dom/base/Navigator.h
index d47a80bc1..91b7fc15c 100644
--- a/dom/base/Navigator.h
+++ b/dom/base/Navigator.h
@@ -76,7 +76,6 @@ class Connection;
 class PowerManager;
 class Presentation;
 class LegacyMozTCPSocket;
-class VRDisplay;
 class StorageManager;
 
 namespace time {
@@ -204,8 +203,6 @@ public:
   void GetGamepads(nsTArray<RefPtr<Gamepad> >& aGamepads, ErrorResult& aRv);
   GamepadServiceTest* RequestGamepadServiceTest();
 #endif // MOZ_GAMEPAD
-  already_AddRefed<Promise> GetVRDisplays(ErrorResult& aRv);
-  void GetActiveVRDisplays(nsTArray<RefPtr<VRDisplay>>& aDisplays) const;
 #ifdef MOZ_TIME_MANAGER
   time::TimeManager* GetMozTime(ErrorResult& aRv);
 #endif // MOZ_TIME_MANAGER
@@ -269,10 +266,6 @@ private:
   RefPtr<MediaKeySystemAccessManager> mMediaKeySystemAccessManager;
 #endif
 
-public:
-  void NotifyVRDisplaysUpdated();
-  void NotifyActiveVRDisplaysChanged();
-
 private:
   virtual ~Navigator();
 
diff --git a/dom/base/nsGlobalWindow.cpp b/dom/base/nsGlobalWindow.cpp
index 86160c77c..677e1a0ea 100644
--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@@ -202,9 +202,6 @@
 #include "mozilla/dom/GamepadManager.h"
 #endif
 
-#include "mozilla/dom/VRDisplay.h"
-#include "mozilla/dom/VREventObserver.h"
-
 #include "nsRefreshDriver.h"
 #include "Layers.h"
 
@@ -1532,7 +1529,6 @@ nsGlobalWindow::nsGlobalWindow(nsGlobalWindow *aOuterWindow)
     mShowFocusRingForContent(false),
     mFocusByKeyOccurred(false),
     mHasGamepad(false),
-    mHasVREvents(false),
 #ifdef MOZ_GAMEPAD
     mHasSeenGamepadInput(false),
 #endif
@@ -1967,12 +1963,9 @@ nsGlobalWindow::CleanUp()
   if (IsInnerWindow()) {
     DisableGamepadUpdates();
     mHasGamepad = false;
-    DisableVRUpdates();
-    mHasVREvents = false;
     DisableIdleCallbackRequests();
   } else {
     MOZ_ASSERT(!mHasGamepad);
-    MOZ_ASSERT(!mHasVREvents);
   }
 
   if (mCleanMessageManager) {
@@ -2118,9 +2111,6 @@ nsGlobalWindow::FreeInnerObjects(bool aForDocumentOpen)
   mHasGamepad = false;
   mGamepads.Clear();
 #endif
-  DisableVRUpdates();
-  mHasVREvents = false;
-  mVRDisplays.Clear();
 }
 
 //*****************************************************************************
@@ -2275,7 +2265,6 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(nsGlobalWindow)
 #endif
 
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCacheStorage)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVRDisplays)
 
   // Traverse stuff from nsPIDOMWindow
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChromeEventHandler)
@@ -2352,7 +2341,6 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsGlobalWindow)
 #endif
 
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mCacheStorage)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mVRDisplays)
 
   // Unlink stuff from nsPIDOMWindow
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mChromeEventHandler)
@@ -10508,24 +10496,6 @@ nsGlobalWindow::DisableGamepadUpdates()
 }
 
 void
-nsGlobalWindow::EnableVRUpdates()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  if (mHasVREvents && !mVREventObserver) {
-    mVREventObserver = new VREventObserver(this);
-  }
-}
-
-void
-nsGlobalWindow::DisableVRUpdates()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  mVREventObserver = nullptr;
-}
-
-void
 nsGlobalWindow::SetChromeEventHandler(EventTarget* aChromeEventHandler)
 {
   MOZ_ASSERT(IsOuterWindow());
@@ -12210,7 +12180,6 @@ nsGlobalWindow::Suspend()
       ac->RemoveWindowListener(mEnabledSensors[i], this);
   }
   DisableGamepadUpdates();
-  DisableVRUpdates();
 
   mozilla::dom::workers::SuspendWorkersForWindow(AsInner());
 
@@ -12274,7 +12243,6 @@ nsGlobalWindow::Resume()
       ac->AddWindowListener(mEnabledSensors[i], this);
   }
   EnableGamepadUpdates();
-  EnableVRUpdates();
 
   // Resume all of the AudioContexts for this window
   for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
@@ -14030,19 +13998,6 @@ nsGlobalWindow::SetHasGamepadEventListener(bool aHasGamepad/* = true*/)
 void
 nsGlobalWindow::EventListenerAdded(nsIAtom* aType)
 {
-  if (aType == nsGkAtoms::onvrdisplayconnect ||
-      aType == nsGkAtoms::onvrdisplaydisconnect ||
-      aType == nsGkAtoms::onvrdisplaypresentchange) {
-    NotifyVREventListenerAdded();
-  }
-}
-
-void
-nsGlobalWindow::NotifyVREventListenerAdded()
-{
-  MOZ_ASSERT(IsInnerWindow());
-  mHasVREvents = true;
-  EnableVRUpdates();
 }
 
 void
@@ -14187,27 +14142,6 @@ nsGlobalWindow::SyncGamepadState()
 }
 #endif // MOZ_GAMEPAD
 
-bool
-nsGlobalWindow::UpdateVRDisplays(nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDevices)
-{
-  FORWARD_TO_INNER(UpdateVRDisplays, (aDevices), false);
-
-  VRDisplay::UpdateVRDisplays(mVRDisplays, AsInner());
-  aDevices = mVRDisplays;
-  return true;
-}
-
-void
-nsGlobalWindow::NotifyActiveVRDisplaysChanged()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  if (mNavigator) {
-    mNavigator->NotifyActiveVRDisplaysChanged();
-  }
-}
-
-
 // nsGlobalChromeWindow implementation
 
 NS_IMPL_CYCLE_COLLECTION_CLASS(nsGlobalChromeWindow)
diff --git a/dom/base/nsGlobalWindow.h b/dom/base/nsGlobalWindow.h
index 80bf33b80..1cb825a77 100644
--- a/dom/base/nsGlobalWindow.h
+++ b/dom/base/nsGlobalWindow.h
@@ -135,8 +135,6 @@ class SpeechSynthesis;
 class TabGroup;
 class Timeout;
 class U2F;
-class VRDisplay;
-class VREventObserver;
 class WakeLock;
 #if defined(MOZ_WIDGET_ANDROID)
 class WindowOrientationObserver;
@@ -745,18 +743,6 @@ public:
   void EnableGamepadUpdates();
   void DisableGamepadUpdates();
 
-  // Inner windows only.
-  // Enable/disable updates for VR
-  void EnableVRUpdates();
-  void DisableVRUpdates();
-
-  // Update the VR displays for this window
-  bool UpdateVRDisplays(nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDisplays);
-
-  // Inner windows only.
-  // Called to inform that the set of active VR displays has changed.
-  void NotifyActiveVRDisplaysChanged();
-
 #define EVENT(name_, id_, type_, struct_)                                     \
   mozilla::dom::EventHandlerNonNull* GetOn##name_()                           \
   {                                                                           \
@@ -1832,9 +1818,6 @@ protected:
   // Indicates whether this window wants gamepad input events
   bool                   mHasGamepad : 1;
 
-  // Inner windows only.
-  // Indicates whether this window wants VR events
-  bool                   mHasVREvents : 1;
 #ifdef MOZ_GAMEPAD
   nsCheapSet<nsUint32HashKey> mGamepadIndexSet;
   nsRefPtrHashtable<nsUint32HashKey, mozilla::dom::Gamepad> mGamepads;
@@ -1989,11 +1972,6 @@ protected:
   // This is the CC generation the last time we called CanSkip.
   uint32_t mCanSkipCCGeneration;
 
-  // The VR Displays for this window
-  nsTArray<RefPtr<mozilla::dom::VRDisplay>> mVRDisplays;
-
-  nsAutoPtr<mozilla::dom::VREventObserver> mVREventObserver;
-
   friend class nsDOMScriptableHelper;
   friend class nsDOMWindowUtils;
   friend class mozilla::dom::PostMessageEvent;
diff --git a/dom/canvas/WebGLContext.cpp b/dom/canvas/WebGLContext.cpp
index 14bc7e3e3..e2e05e5fd 100644
--- a/dom/canvas/WebGLContext.cpp
+++ b/dom/canvas/WebGLContext.cpp
@@ -47,7 +47,6 @@
 #include "nsSVGEffects.h"
 #include "prenv.h"
 #include "ScopedGLHelpers.h"
-#include "VRManagerChild.h"
 #include "mozilla/layers/TextureClientSharedSurface.h"
 
 // Local
@@ -2239,84 +2238,6 @@ WebGLContext::GetUnpackSize(bool isFunc3D, uint32_t width, uint32_t height,
     return totalBytes;
 }
 
-already_AddRefed<layers::SharedSurfaceTextureClient>
-WebGLContext::GetVRFrame()
-{
-    if (!mLayerIsMirror) {
-        /**
-         * Do not allow VR frame submission until a mirroring canvas layer has
-         * been returned by GetCanvasLayer
-         */
-        return nullptr;
-    }
-
-    VRManagerChild* vrmc = VRManagerChild::Get();
-    if (!vrmc) {
-        return nullptr;
-    }
-
-    /**
-     * Swap buffers as though composition has occurred.
-     * We will then share the resulting front buffer to be submitted to the VR
-     * compositor.
-     */
-    BeginComposition();
-    EndComposition();
-
-    gl::GLScreenBuffer* screen = gl->Screen();
-    if (!screen) {
-        return nullptr;
-    }
-
-    RefPtr<SharedSurfaceTextureClient> sharedSurface = screen->Front();
-    if (!sharedSurface) {
-        return nullptr;
-    }
-
-    if (sharedSurface && sharedSurface->GetAllocator() != vrmc) {
-        RefPtr<SharedSurfaceTextureClient> dest =
-        screen->Factory()->NewTexClient(sharedSurface->GetSize());
-        if (!dest) {
-            return nullptr;
-        }
-        gl::SharedSurface* destSurf = dest->Surf();
-        destSurf->ProducerAcquire();
-        SharedSurface::ProdCopy(sharedSurface->Surf(), dest->Surf(),
-                                screen->Factory());
-        destSurf->ProducerRelease();
-
-        return dest.forget();
-    }
-
-  return sharedSurface.forget();
-}
-
-bool
-WebGLContext::StartVRPresentation()
-{
-    VRManagerChild* vrmc = VRManagerChild::Get();
-    if (!vrmc) {
-        return false;
-    }
-    gl::GLScreenBuffer* screen = gl->Screen();
-    if (!screen) {
-        return false;
-    }
-    gl::SurfaceCaps caps = screen->mCaps;
-
-    UniquePtr<gl::SurfaceFactory> factory =
-        gl::GLScreenBuffer::CreateFactory(gl,
-            caps,
-            vrmc,
-            vrmc->GetBackendType(),
-            TextureFlags::ORIGIN_BOTTOM_LEFT);
-
-    if (factory) {
-        screen->Morph(Move(factory));
-    }
-    return true;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 
 static inline size_t
diff --git a/dom/canvas/WebGLContext.h b/dom/canvas/WebGLContext.h
index b4d416a33..3ec307b00 100644
--- a/dom/canvas/WebGLContext.h
+++ b/dom/canvas/WebGLContext.h
@@ -656,9 +656,6 @@ public:
     void PixelStorei(GLenum pname, GLint param);
     void PolygonOffset(GLfloat factor, GLfloat units);
 
-    already_AddRefed<layers::SharedSurfaceTextureClient> GetVRFrame();
-    bool StartVRPresentation();
-
     ////
 
     webgl::PackingInfo
diff --git a/dom/html/HTMLCanvasElement.cpp b/dom/html/HTMLCanvasElement.cpp
index 88b41bce0..527135a80 100644
--- a/dom/html/HTMLCanvasElement.cpp
+++ b/dom/html/HTMLCanvasElement.cpp
@@ -42,7 +42,6 @@
 #include "nsRefreshDriver.h"
 #include "nsStreamUtils.h"
 #include "ActiveLayerTracker.h"
-#include "VRManagerChild.h"
 #include "WebGL1Context.h"
 #include "WebGL2Context.h"
 
@@ -358,7 +357,6 @@ NS_IMPL_ISUPPORTS(HTMLCanvasElementObserver, nsIObserver)
 HTMLCanvasElement::HTMLCanvasElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
   : nsGenericHTMLElement(aNodeInfo),
     mResetLayer(true) ,
-    mVRPresentationActive(false),
     mWriteOnly(false)
 {}
 
@@ -1111,7 +1109,7 @@ HTMLCanvasElement::GetCanvasLayer(nsDisplayListBuilder* aBuilder,
   static uint8_t sOffscreenCanvasLayerUserDataDummy = 0;
 
   if (mCurrentContext) {
-    return mCurrentContext->GetCanvasLayer(aBuilder, aOldLayer, aManager, mVRPresentationActive);
+    return mCurrentContext->GetCanvasLayer(aBuilder, aOldLayer, aManager);
   }
 
   if (mOffscreenCanvas) {
@@ -1441,42 +1439,5 @@ HTMLCanvasElement::InvalidateFromAsyncCanvasRenderer(AsyncCanvasRenderer *aRende
   element->InvalidateCanvasContent(nullptr);
 }
 
-void
-HTMLCanvasElement::StartVRPresentation()
-{
-  WebGLContext* webgl = static_cast<WebGLContext*>(GetContextAtIndex(0));
-  if (!webgl) {
-    return;
-  }
-
-  if (!webgl->StartVRPresentation()) {
-    return;
-  }
-
-  mVRPresentationActive = true;
-}
-
-void
-HTMLCanvasElement::StopVRPresentation()
-{
-  mVRPresentationActive = false;
-}
-
-already_AddRefed<layers::SharedSurfaceTextureClient>
-HTMLCanvasElement::GetVRFrame()
-{
-  if (GetCurrentContextType() != CanvasContextType::WebGL1 &&
-      GetCurrentContextType() != CanvasContextType::WebGL2) {
-    return nullptr;
-  }
-
-  WebGLContext* webgl = static_cast<WebGLContext*>(GetContextAtIndex(0));
-  if (!webgl) {
-    return nullptr;
-  }
-
-  return webgl->GetVRFrame();
-}
-
 } // namespace dom
 } // namespace mozilla
diff --git a/dom/html/HTMLCanvasElement.h b/dom/html/HTMLCanvasElement.h
index 81c141d3c..746fab198 100644
--- a/dom/html/HTMLCanvasElement.h
+++ b/dom/html/HTMLCanvasElement.h
@@ -350,10 +350,6 @@ public:
   static void SetAttrFromAsyncCanvasRenderer(AsyncCanvasRenderer *aRenderer);
   static void InvalidateFromAsyncCanvasRenderer(AsyncCanvasRenderer *aRenderer);
 
-  void StartVRPresentation();
-  void StopVRPresentation();
-  already_AddRefed<layers::SharedSurfaceTextureClient> GetVRFrame();
-
 protected:
   virtual ~HTMLCanvasElement();
 
diff --git a/dom/ipc/ContentChild.cpp b/dom/ipc/ContentChild.cpp
index fc288e2c5..fdf0fcf3e 100644
--- a/dom/ipc/ContentChild.cpp
+++ b/dom/ipc/ContentChild.cpp
@@ -171,7 +171,6 @@
 #include "GMPServiceChild.h"
 #include "gfxPlatform.h"
 #include "nscore.h" // for NS_FREE_PERMANENT_DATA
-#include "VRManagerChild.h"
 
 using namespace mozilla;
 using namespace mozilla::docshell;
@@ -1148,7 +1147,6 @@ ContentChild::RecvGMPsChanged(nsTArray<GMPCapabilityData>&& capabilities)
 bool
 ContentChild::RecvInitRendering(Endpoint<PCompositorBridgeChild>&& aCompositor,
                                 Endpoint<PImageBridgeChild>&& aImageBridge,
-                                Endpoint<PVRManagerChild>&& aVRBridge,
                                 Endpoint<PVideoDecoderManagerChild>&& aVideoManager)
 {
   if (!CompositorBridgeChild::InitForContent(Move(aCompositor))) {
@@ -1157,9 +1155,6 @@ ContentChild::RecvInitRendering(Endpoint<PCompositorBridgeChild>&& aCompositor,
   if (!ImageBridgeChild::InitForContent(Move(aImageBridge))) {
     return false;
   }
-  if (!gfx::VRManagerChild::InitForContent(Move(aVRBridge))) {
-    return false;
-  }
   VideoDecoderManagerChild::InitForContent(Move(aVideoManager));
   return true;
 }
@@ -1167,7 +1162,6 @@ ContentChild::RecvInitRendering(Endpoint<PCompositorBridgeChild>&& aCompositor,
 bool
 ContentChild::RecvReinitRendering(Endpoint<PCompositorBridgeChild>&& aCompositor,
                                   Endpoint<PImageBridgeChild>&& aImageBridge,
-                                  Endpoint<PVRManagerChild>&& aVRBridge,
                                   Endpoint<PVideoDecoderManagerChild>&& aVideoManager)
 {
   nsTArray<RefPtr<TabChild>> tabs = TabChild::GetAll();
@@ -1186,9 +1180,6 @@ ContentChild::RecvReinitRendering(Endpoint<PCompositorBridgeChild>&& aCompositor
   if (!ImageBridgeChild::ReinitForContent(Move(aImageBridge))) {
     return false;
   }
-  if (!gfx::VRManagerChild::ReinitForContent(Move(aVRBridge))) {
-    return false;
-  }
 
   // Establish new PLayerTransactions.
   for (const auto& tabChild : tabs) {
diff --git a/dom/ipc/ContentChild.h b/dom/ipc/ContentChild.h
index ba590b58e..f29d17e7f 100644
--- a/dom/ipc/ContentChild.h
+++ b/dom/ipc/ContentChild.h
@@ -152,15 +152,13 @@ public:
   RecvInitRendering(
     Endpoint<PCompositorBridgeChild>&& aCompositor,
     Endpoint<PImageBridgeChild>&& aImageBridge,
-    Endpoint<PVRManagerChild>&& aVRBridge,
-    Endpoint<PVideoDecoderManagerChild>&& aVideoManager) override;
+    Endpoint<PVideoDecoderManagerChild>&& aVideoManager);
 
   bool
   RecvReinitRendering(
     Endpoint<PCompositorBridgeChild>&& aCompositor,
     Endpoint<PImageBridgeChild>&& aImageBridge,
-    Endpoint<PVRManagerChild>&& aVRBridge,
-    Endpoint<PVideoDecoderManagerChild>&& aVideoManager) override;
+    Endpoint<PVideoDecoderManagerChild>&& aVideoManager);
 
   PProcessHangMonitorChild*
   AllocPProcessHangMonitorChild(Transport* aTransport,
diff --git a/dom/ipc/ContentParent.cpp b/dom/ipc/ContentParent.cpp
index 5c6aadb77..417420ecb 100644
--- a/dom/ipc/ContentParent.cpp
+++ b/dom/ipc/ContentParent.cpp
@@ -2073,21 +2073,18 @@ ContentParent::InitInternal(ProcessPriority aInitialPriority,
 
       Endpoint<PCompositorBridgeChild> compositor;
       Endpoint<PImageBridgeChild> imageBridge;
-      Endpoint<PVRManagerChild> vrBridge;
       Endpoint<PVideoDecoderManagerChild> videoManager;
 
       DebugOnly<bool> opened = gpm->CreateContentBridges(
         OtherPid(),
         &compositor,
         &imageBridge,
-        &vrBridge,
         &videoManager);
       MOZ_ASSERT(opened);
 
       Unused << SendInitRendering(
         Move(compositor),
         Move(imageBridge),
-        Move(vrBridge),
         Move(videoManager));
 
       gpm->AddListener(this);
@@ -2201,21 +2198,18 @@ ContentParent::OnCompositorUnexpectedShutdown()
 
   Endpoint<PCompositorBridgeChild> compositor;
   Endpoint<PImageBridgeChild> imageBridge;
-  Endpoint<PVRManagerChild> vrBridge;
   Endpoint<PVideoDecoderManagerChild> videoManager;
 
   DebugOnly<bool> opened = gpm->CreateContentBridges(
     OtherPid(),
     &compositor,
     &imageBridge,
-    &vrBridge,
     &videoManager);
   MOZ_ASSERT(opened);
 
   Unused << SendReinitRendering(
     Move(compositor),
     Move(imageBridge),
-    Move(vrBridge),
     Move(videoManager));
 }
 
diff --git a/dom/ipc/PContent.ipdl b/dom/ipc/PContent.ipdl
index c01ad59c1..9298f9d02 100644
--- a/dom/ipc/PContent.ipdl
+++ b/dom/ipc/PContent.ipdl
@@ -44,7 +44,6 @@ include protocol PRemoteSpellcheckEngine;
 include protocol PWebBrowserPersistDocument;
 include protocol PWebrtcGlobal;
 include protocol PPresentation;
-include protocol PVRManager;
 include protocol PVideoDecoderManager;
 include protocol PFlyWebPublishedServer;
 include DOMTypes;
@@ -311,7 +310,6 @@ child:
     async InitRendering(
       Endpoint<PCompositorBridgeChild> compositor,
       Endpoint<PImageBridgeChild> imageBridge,
-      Endpoint<PVRManagerChild> vr,
       Endpoint<PVideoDecoderManagerChild> video);
 
     // Re-create the rendering stack using the given endpoints. This is sent
@@ -320,7 +318,6 @@ child:
     async ReinitRendering(
       Endpoint<PCompositorBridgeChild> compositor,
       Endpoint<PImageBridgeChild> bridge,
-      Endpoint<PVRManagerChild> vr,
       Endpoint<PVideoDecoderManagerChild> video);
 
     /**
diff --git a/dom/ipc/TabChild.cpp b/dom/ipc/TabChild.cpp
index 244fa9969..3fe94001e 100644
--- a/dom/ipc/TabChild.cpp
+++ b/dom/ipc/TabChild.cpp
@@ -107,7 +107,6 @@
 #include "nsDeviceContext.h"
 #include "nsSandboxFlags.h"
 #include "FrameLayerBuilder.h"
-#include "VRManagerChild.h"
 #include "nsICommandParams.h"
 #include "nsISHistory.h"
 #include "nsQueryObject.h"
@@ -2565,7 +2564,6 @@ TabChild::InitRenderingState(const TextureFactoryIdentifier& aTextureFactoryIden
       lf->SetShadowManager(shadowManager);
       lf->IdentifyTextureHost(mTextureFactoryIdentifier);
       ImageBridgeChild::IdentifyCompositorTextureHost(mTextureFactoryIdentifier);
-      gfx::VRManagerChild::IdentifyTextureHost(mTextureFactoryIdentifier);
     }
 
     mRemoteFrame = remoteFrame;
diff --git a/dom/moz.build b/dom/moz.build
index 358fc6411..54dc0510e 100644
--- a/dom/moz.build
+++ b/dom/moz.build
@@ -94,7 +94,6 @@ DIRS += [
     'xslt',
     'xul',
     'manifest',
-    'vr',
     'u2f',
     'console',
     'performance',
diff --git a/dom/vr/VRDisplay.cpp b/dom/vr/VRDisplay.cpp
deleted file mode 100644
index 80922422f..000000000
--- a/dom/vr/VRDisplay.cpp
+++ /dev/null
@@ -1,802 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "nsWrapperCache.h"
-
-#include "mozilla/dom/Element.h"
-#include "mozilla/dom/ElementBinding.h"
-#include "mozilla/dom/Promise.h"
-#include "mozilla/dom/VRDisplay.h"
-#include "mozilla/HoldDropJSObjects.h"
-#include "mozilla/dom/VRDisplayBinding.h"
-#include "Navigator.h"
-#include "gfxVR.h"
-#include "VRDisplayClient.h"
-#include "VRManagerChild.h"
-#include "VRDisplayPresentation.h"
-#include "nsIObserverService.h"
-#include "nsIFrame.h"
-#include "nsISupportsPrimitives.h"
-
-using namespace mozilla::gfx;
-
-namespace mozilla {
-namespace dom {
-
-VRFieldOfView::VRFieldOfView(nsISupports* aParent,
-                             double aUpDegrees, double aRightDegrees,
-                             double aDownDegrees, double aLeftDegrees)
-  : mParent(aParent)
-  , mUpDegrees(aUpDegrees)
-  , mRightDegrees(aRightDegrees)
-  , mDownDegrees(aDownDegrees)
-  , mLeftDegrees(aLeftDegrees)
-{
-}
-
-VRFieldOfView::VRFieldOfView(nsISupports* aParent, const gfx::VRFieldOfView& aSrc)
-  : mParent(aParent)
-  , mUpDegrees(aSrc.upDegrees)
-  , mRightDegrees(aSrc.rightDegrees)
-  , mDownDegrees(aSrc.downDegrees)
-  , mLeftDegrees(aSrc.leftDegrees)
-{
-}
-
-bool
-VRDisplayCapabilities::HasPosition() const
-{
-  return bool(mFlags & gfx::VRDisplayCapabilityFlags::Cap_Position);
-}
-
-bool
-VRDisplayCapabilities::HasOrientation() const
-{
-  return bool(mFlags & gfx::VRDisplayCapabilityFlags::Cap_Orientation);
-}
-
-bool
-VRDisplayCapabilities::HasExternalDisplay() const
-{
-  return bool(mFlags & gfx::VRDisplayCapabilityFlags::Cap_External);
-}
-
-bool
-VRDisplayCapabilities::CanPresent() const
-{
-  return bool(mFlags & gfx::VRDisplayCapabilityFlags::Cap_Present);
-}
-
-uint32_t
-VRDisplayCapabilities::MaxLayers() const
-{
-  return CanPresent() ? 1 : 0;
-}
-
-/*static*/ bool
-VRDisplay::RefreshVRDisplays(uint64_t aWindowId)
-{
-  gfx::VRManagerChild* vm = gfx::VRManagerChild::Get();
-  return vm && vm->RefreshVRDisplaysWithCallback(aWindowId);
-}
-
-/*static*/ void
-VRDisplay::UpdateVRDisplays(nsTArray<RefPtr<VRDisplay>>& aDisplays, nsPIDOMWindowInner* aWindow)
-{
-  nsTArray<RefPtr<VRDisplay>> displays;
-
-  gfx::VRManagerChild* vm = gfx::VRManagerChild::Get();
-  nsTArray<RefPtr<gfx::VRDisplayClient>> updatedDisplays;
-  if (vm && vm->GetVRDisplays(updatedDisplays)) {
-    for (size_t i = 0; i < updatedDisplays.Length(); i++) {
-      RefPtr<gfx::VRDisplayClient> display = updatedDisplays[i];
-      bool isNewDisplay = true;
-      for (size_t j = 0; j < aDisplays.Length(); j++) {
-        if (aDisplays[j]->GetClient()->GetDisplayInfo() == display->GetDisplayInfo()) {
-          displays.AppendElement(aDisplays[j]);
-          isNewDisplay = false;
-        }
-      }
-
-      if (isNewDisplay) {
-        displays.AppendElement(new VRDisplay(aWindow, display));
-      }
-    }
-  }
-
-  aDisplays = displays;
-}
-
-NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(VRFieldOfView, mParent)
-NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(VRFieldOfView, AddRef)
-NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(VRFieldOfView, Release)
-
-
-JSObject*
-VRFieldOfView::WrapObject(JSContext* aCx,
-                          JS::Handle<JSObject*> aGivenProto)
-{
-  return VRFieldOfViewBinding::Wrap(aCx, this, aGivenProto);
-}
-
-NS_IMPL_CYCLE_COLLECTION_CLASS(VREyeParameters)
-
-NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(VREyeParameters)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent, mFOV)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
-  tmp->mOffset = nullptr;
-NS_IMPL_CYCLE_COLLECTION_UNLINK_END
-
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(VREyeParameters)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent, mFOV)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
-
-NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(VREyeParameters)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mOffset)
-NS_IMPL_CYCLE_COLLECTION_TRACE_END
-
-NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(VREyeParameters, AddRef)
-NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(VREyeParameters, Release)
-
-VREyeParameters::VREyeParameters(nsISupports* aParent,
-                                 const gfx::Point3D& aEyeTranslation,
-                                 const gfx::VRFieldOfView& aFOV,
-                                 const gfx::IntSize& aRenderSize)
-  : mParent(aParent)
-  , mEyeTranslation(aEyeTranslation)
-  , mRenderSize(aRenderSize)
-{
-  mFOV = new VRFieldOfView(aParent, aFOV);
-  mozilla::HoldJSObjects(this);
-}
-
-VREyeParameters::~VREyeParameters()
-{
-  mozilla::DropJSObjects(this);
-}
-
-VRFieldOfView*
-VREyeParameters::FieldOfView()
-{
-  return mFOV;
-}
-
-void
-VREyeParameters::GetOffset(JSContext* aCx, JS::MutableHandle<JSObject*> aRetval, ErrorResult& aRv)
-{
-  if (!mOffset) {
-    // Lazily create the Float32Array
-    mOffset = dom::Float32Array::Create(aCx, this, 3, mEyeTranslation.components);
-    if (!mOffset) {
-      aRv.NoteJSContextException(aCx);
-      return;
-    }
-  }
-  aRetval.set(mOffset);
-}
-
-JSObject*
-VREyeParameters::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
-{
-  return VREyeParametersBinding::Wrap(aCx, this, aGivenProto);
-}
-
-VRStageParameters::VRStageParameters(nsISupports* aParent,
-                                     const gfx::Matrix4x4& aSittingToStandingTransform,
-                                     const gfx::Size& aSize)
-  : mParent(aParent)
-  , mSittingToStandingTransform(aSittingToStandingTransform)
-  , mSittingToStandingTransformArray(nullptr)
-  , mSize(aSize)
-{
-  mozilla::HoldJSObjects(this);
-}
-
-VRStageParameters::~VRStageParameters()
-{
-  mozilla::DropJSObjects(this);
-}
-
-JSObject*
-VRStageParameters::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
-{
-  return VRStageParametersBinding::Wrap(aCx, this, aGivenProto);
-}
-
-NS_IMPL_CYCLE_COLLECTION_CLASS(VRStageParameters)
-
-NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(VRStageParameters)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
-  tmp->mSittingToStandingTransformArray = nullptr;
-NS_IMPL_CYCLE_COLLECTION_UNLINK_END
-
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(VRStageParameters)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
-
-NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(VRStageParameters)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mSittingToStandingTransformArray)
-NS_IMPL_CYCLE_COLLECTION_TRACE_END
-
-NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(VRStageParameters, AddRef)
-NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(VRStageParameters, Release)
-
-void
-VRStageParameters::GetSittingToStandingTransform(JSContext* aCx,
-                                                 JS::MutableHandle<JSObject*> aRetval,
-                                                 ErrorResult& aRv)
-{
-  if (!mSittingToStandingTransformArray) {
-    // Lazily create the Float32Array
-    mSittingToStandingTransformArray = dom::Float32Array::Create(aCx, this, 16,
-      mSittingToStandingTransform.components);
-    if (!mSittingToStandingTransformArray) {
-      aRv.NoteJSContextException(aCx);
-      return;
-    }
-  }
-  aRetval.set(mSittingToStandingTransformArray);
-}
-
-NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(VRDisplayCapabilities, mParent)
-NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(VRDisplayCapabilities, AddRef)
-NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(VRDisplayCapabilities, Release)
-
-JSObject*
-VRDisplayCapabilities::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
-{
-  return VRDisplayCapabilitiesBinding::Wrap(aCx, this, aGivenProto);
-}
-
-VRPose::VRPose(nsISupports* aParent, const gfx::VRHMDSensorState& aState)
-  : Pose(aParent)
-  , mVRState(aState)
-{
-  mFrameId = aState.inputFrameID;
-  mozilla::HoldJSObjects(this);
-}
-
-VRPose::VRPose(nsISupports* aParent)
-  : Pose(aParent)
-{
-  mFrameId = 0;
-  mVRState.Clear();
-  mozilla::HoldJSObjects(this);
-}
-
-VRPose::~VRPose()
-{
-  mozilla::DropJSObjects(this);
-}
-
-void
-VRPose::GetPosition(JSContext* aCx,
-                    JS::MutableHandle<JSObject*> aRetval,
-                    ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mPosition, mVRState.position, 3,
-    !mPosition && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Position),
-    aRv);
-}
-
-void
-VRPose::GetLinearVelocity(JSContext* aCx,
-                          JS::MutableHandle<JSObject*> aRetval,
-                          ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mLinearVelocity, mVRState.linearVelocity, 3,
-    !mLinearVelocity && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Position),
-    aRv);
-}
-
-void
-VRPose::GetLinearAcceleration(JSContext* aCx,
-                              JS::MutableHandle<JSObject*> aRetval,
-                              ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mLinearAcceleration, mVRState.linearAcceleration, 3,
-    !mLinearAcceleration && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_LinearAcceleration),
-    aRv);
-
-}
-
-void
-VRPose::GetOrientation(JSContext* aCx,
-                       JS::MutableHandle<JSObject*> aRetval,
-                       ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mOrientation, mVRState.orientation, 4,
-    !mOrientation && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Orientation),
-    aRv);
-}
-
-void
-VRPose::GetAngularVelocity(JSContext* aCx,
-                           JS::MutableHandle<JSObject*> aRetval,
-                           ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mAngularVelocity, mVRState.angularVelocity, 3,
-    !mAngularVelocity && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Orientation),
-    aRv);
-}
-
-void
-VRPose::GetAngularAcceleration(JSContext* aCx,
-                               JS::MutableHandle<JSObject*> aRetval,
-                               ErrorResult& aRv)
-{
-  SetFloat32Array(aCx, aRetval, mAngularAcceleration, mVRState.angularAcceleration, 3,
-    !mAngularAcceleration && bool(mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_AngularAcceleration),
-    aRv);
-}
-
-JSObject*
-VRPose::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
-{
-  return VRPoseBinding::Wrap(aCx, this, aGivenProto);
-}
-
-/* virtual */ JSObject*
-VRDisplay::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
-{
-  return VRDisplayBinding::Wrap(aCx, this, aGivenProto);
-}
-
-VRDisplay::VRDisplay(nsPIDOMWindowInner* aWindow, gfx::VRDisplayClient* aClient)
-  : DOMEventTargetHelper(aWindow)
-  , mClient(aClient)
-  , mDepthNear(0.01f) // Default value from WebVR Spec
-  , mDepthFar(10000.0f) // Default value from WebVR Spec
-{
-  const gfx::VRDisplayInfo& info = aClient->GetDisplayInfo();
-  mDisplayId = info.GetDisplayID();
-  mDisplayName = NS_ConvertASCIItoUTF16(info.GetDisplayName());
-  mCapabilities = new VRDisplayCapabilities(aWindow, info.GetCapabilities());
-  if (info.GetCapabilities() & gfx::VRDisplayCapabilityFlags::Cap_StageParameters) {
-    mStageParameters = new VRStageParameters(aWindow,
-                                             info.GetSittingToStandingTransform(),
-                                             info.GetStageSize());
-  }
-  mozilla::HoldJSObjects(this);
-}
-
-VRDisplay::~VRDisplay()
-{
-  ExitPresentInternal();
-  mozilla::DropJSObjects(this);
-}
-
-void
-VRDisplay::LastRelease()
-{
-  // We don't want to wait for the CC to free up the presentation
-  // for use in other documents, so we do this in LastRelease().
-  ExitPresentInternal();
-}
-
-already_AddRefed<VREyeParameters>
-VRDisplay::GetEyeParameters(VREye aEye)
-{
-  gfx::VRDisplayInfo::Eye eye = aEye == VREye::Left ? gfx::VRDisplayInfo::Eye_Left : gfx::VRDisplayInfo::Eye_Right;
-  RefPtr<VREyeParameters> params =
-    new VREyeParameters(GetParentObject(),
-                        mClient->GetDisplayInfo().GetEyeTranslation(eye),
-                        mClient->GetDisplayInfo().GetEyeFOV(eye),
-                        mClient->GetDisplayInfo().SuggestedEyeResolution());
-  return params.forget();
-}
-
-VRDisplayCapabilities*
-VRDisplay::Capabilities()
-{
-  return mCapabilities;
-}
-
-VRStageParameters*
-VRDisplay::GetStageParameters()
-{
-  return mStageParameters;
-}
-
-void
-VRDisplay::UpdateFrameInfo()
-{
-  /**
-   * The WebVR 1.1 spec Requires that VRDisplay.getPose and VRDisplay.getFrameData
-   * must return the same values until the next VRDisplay.submitFrame.
-   *
-   * mFrameInfo is marked dirty at the end of the frame or start of a new
-   * composition and lazily created here in order to receive mid-frame
-   * pose-prediction updates while still ensuring conformance to the WebVR spec
-   * requirements.
-   *
-   * If we are not presenting WebVR content, the frame will never end and we should
-   * return the latest frame data always.
-   */
-  if (mFrameInfo.IsDirty() || !mPresentation) {
-    gfx::VRHMDSensorState state = mClient->GetSensorState();
-    const gfx::VRDisplayInfo& info = mClient->GetDisplayInfo();
-    mFrameInfo.Update(info, state, mDepthNear, mDepthFar);
-  }
-}
-
-bool
-VRDisplay::GetFrameData(VRFrameData& aFrameData)
-{
-  UpdateFrameInfo();
-  aFrameData.Update(mFrameInfo);
-  return true;
-}
-
-already_AddRefed<VRPose>
-VRDisplay::GetPose()
-{
-  UpdateFrameInfo();
-  RefPtr<VRPose> obj = new VRPose(GetParentObject(), mFrameInfo.mVRState);
-
-  return obj.forget();
-}
-
-void
-VRDisplay::ResetPose()
-{
-  mClient->ZeroSensor();
-}
-
-already_AddRefed<Promise>
-VRDisplay::RequestPresent(const nsTArray<VRLayer>& aLayers, ErrorResult& aRv)
-{
-  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
-  if (!global) {
-    aRv.Throw(NS_ERROR_FAILURE);
-    return nullptr;
-  }
-
-  RefPtr<Promise> promise = Promise::Create(global, aRv);
-  NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
-
-  nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
-  NS_ENSURE_TRUE(obs, nullptr);
-
-  if (mClient->GetIsPresenting()) {
-    // Only one presentation allowed per VRDisplay
-    // on a first-come-first-serve basis.
-    promise->MaybeRejectWithUndefined();
-  } else {
-    mPresentation = mClient->BeginPresentation(aLayers);
-    mFrameInfo.Clear();
-
-    nsresult rv = obs->AddObserver(this, "inner-window-destroyed", false);
-    if (NS_WARN_IF(NS_FAILED(rv))) {
-      mPresentation = nullptr;
-      promise->MaybeRejectWithUndefined();
-    } else {
-      promise->MaybeResolve(JS::UndefinedHandleValue);
-    }
-  }
-  return promise.forget();
-}
-
-NS_IMETHODIMP
-VRDisplay::Observe(nsISupports* aSubject, const char* aTopic,
-  const char16_t* aData)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (strcmp(aTopic, "inner-window-destroyed") == 0) {
-    nsCOMPtr<nsISupportsPRUint64> wrapper = do_QueryInterface(aSubject);
-    NS_ENSURE_TRUE(wrapper, NS_ERROR_FAILURE);
-
-    uint64_t innerID;
-    nsresult rv = wrapper->GetData(&innerID);
-    NS_ENSURE_SUCCESS(rv, rv);
-
-    if (!GetOwner() || GetOwner()->WindowID() == innerID) {
-      ExitPresentInternal();
-    }
-
-    return NS_OK;
-  }
-
-  // This should not happen.
-  return NS_ERROR_FAILURE;
-}
-
-already_AddRefed<Promise>
-VRDisplay::ExitPresent(ErrorResult& aRv)
-{
-  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
-  if (!global) {
-    aRv.Throw(NS_ERROR_FAILURE);
-    return nullptr;
-  }
-
-
-  RefPtr<Promise> promise = Promise::Create(global, aRv);
-  NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
-
-  if (!IsPresenting()) {
-    // We can not exit a presentation outside of the context that
-    // started the presentation.
-    promise->MaybeRejectWithUndefined();
-  } else {
-    promise->MaybeResolve(JS::UndefinedHandleValue);
-    ExitPresentInternal();
-  }
-
-  return promise.forget();
-}
-
-void
-VRDisplay::ExitPresentInternal()
-{
-  mPresentation = nullptr;
-}
-
-void
-VRDisplay::GetLayers(nsTArray<VRLayer>& result)
-{
-  if (mPresentation) {
-    mPresentation->GetDOMLayers(result);
-  } else {
-    result = nsTArray<VRLayer>();
-  }
-}
-
-void
-VRDisplay::SubmitFrame()
-{
-  if (mPresentation) {
-    mPresentation->SubmitFrame();
-  }
-  mFrameInfo.Clear();
-}
-
-int32_t
-VRDisplay::RequestAnimationFrame(FrameRequestCallback& aCallback,
-ErrorResult& aError)
-{
-  gfx::VRManagerChild* vm = gfx::VRManagerChild::Get();
-
-  int32_t handle;
-  aError = vm->ScheduleFrameRequestCallback(aCallback, &handle);
-  return handle;
-}
-
-void
-VRDisplay::CancelAnimationFrame(int32_t aHandle, ErrorResult& aError)
-{
-  gfx::VRManagerChild* vm = gfx::VRManagerChild::Get();
-  vm->CancelFrameRequestCallback(aHandle);
-}
-
-
-bool
-VRDisplay::IsPresenting() const
-{
-  // IsPresenting returns true only if this Javascript context is presenting
-  // and will return false if another context is presenting.
-  return mPresentation != nullptr;
-}
-
-bool
-VRDisplay::IsConnected() const
-{
-  return mClient->GetIsConnected();
-}
-
-NS_IMPL_CYCLE_COLLECTION_INHERITED(VRDisplay, DOMEventTargetHelper, mCapabilities, mStageParameters)
-
-NS_IMPL_ADDREF_INHERITED(VRDisplay, DOMEventTargetHelper)
-NS_IMPL_RELEASE_INHERITED(VRDisplay, DOMEventTargetHelper)
-
-NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(VRDisplay)
-NS_INTERFACE_MAP_ENTRY(nsIObserver)
-NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, DOMEventTargetHelper)
-NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
-
-NS_IMPL_CYCLE_COLLECTION_CLASS(VRFrameData)
-
-NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(VRFrameData)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent, mPose)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
-  tmp->mLeftProjectionMatrix = nullptr;
-  tmp->mLeftViewMatrix = nullptr;
-  tmp->mRightProjectionMatrix = nullptr;
-  tmp->mRightViewMatrix = nullptr;
-NS_IMPL_CYCLE_COLLECTION_UNLINK_END
-
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(VRFrameData)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent, mPose)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
-
-NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(VRFrameData)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mLeftProjectionMatrix)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mLeftViewMatrix)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mRightProjectionMatrix)
-  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mRightViewMatrix)
-NS_IMPL_CYCLE_COLLECTION_TRACE_END
-
-NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(VRFrameData, AddRef)
-NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(VRFrameData, Release)
-
-VRFrameData::VRFrameData(nsISupports* aParent)
-  : mParent(aParent)
-  , mLeftProjectionMatrix(nullptr)
-  , mLeftViewMatrix(nullptr)
-  , mRightProjectionMatrix(nullptr)
-  , mRightViewMatrix(nullptr)
-{
-  mozilla::HoldJSObjects(this);
-  mPose = new VRPose(aParent);
-}
-
-VRFrameData::~VRFrameData()
-{
-  mozilla::DropJSObjects(this);
-}
-
-/* static */ already_AddRefed<VRFrameData>
-VRFrameData::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
-{
-  RefPtr<VRFrameData> obj = new VRFrameData(aGlobal.GetAsSupports());
-  return obj.forget();
-}
-
-JSObject*
-VRFrameData::WrapObject(JSContext* aCx,
-                        JS::Handle<JSObject*> aGivenProto)
-{
-  return VRFrameDataBinding::Wrap(aCx, this, aGivenProto);
-}
-
-VRPose*
-VRFrameData::Pose()
-{
-  return mPose;
-}
-
-void
-VRFrameData::LazyCreateMatrix(JS::Heap<JSObject*>& aArray, gfx::Matrix4x4& aMat, JSContext* aCx,
-                              JS::MutableHandle<JSObject*> aRetval, ErrorResult& aRv)
-{
-  if (!aArray) {
-    // Lazily create the Float32Array
-    aArray = dom::Float32Array::Create(aCx, this, 16, aMat.components);
-    if (!aArray) {
-      aRv.NoteJSContextException(aCx);
-      return;
-    }
-  }
-  if (aArray) {
-    JS::ExposeObjectToActiveJS(aArray);
-  }
-  aRetval.set(aArray);
-}
-
-double
-VRFrameData::Timestamp() const
-{
-  // Converting from seconds to milliseconds
-  return mFrameInfo.mVRState.timestamp * 1000.0f;
-}
-
-void
-VRFrameData::GetLeftProjectionMatrix(JSContext* aCx,
-                                     JS::MutableHandle<JSObject*> aRetval,
-                                     ErrorResult& aRv)
-{
-  LazyCreateMatrix(mLeftProjectionMatrix, mFrameInfo.mLeftProjection, aCx,
-                   aRetval, aRv);
-}
-
-void
-VRFrameData::GetLeftViewMatrix(JSContext* aCx,
-                               JS::MutableHandle<JSObject*> aRetval,
-                               ErrorResult& aRv)
-{
-  LazyCreateMatrix(mLeftViewMatrix, mFrameInfo.mLeftView, aCx, aRetval, aRv);
-}
-
-void
-VRFrameData::GetRightProjectionMatrix(JSContext* aCx,
-                                      JS::MutableHandle<JSObject*> aRetval,
-                                      ErrorResult& aRv)
-{
-  LazyCreateMatrix(mRightProjectionMatrix, mFrameInfo.mRightProjection, aCx,
-                   aRetval, aRv);
-}
-
-void
-VRFrameData::GetRightViewMatrix(JSContext* aCx,
-                                JS::MutableHandle<JSObject*> aRetval,
-                                ErrorResult& aRv)
-{
-  LazyCreateMatrix(mRightViewMatrix, mFrameInfo.mRightView, aCx, aRetval, aRv);
-}
-
-void
-VRFrameData::Update(const VRFrameInfo& aFrameInfo)
-{
-  mFrameInfo = aFrameInfo;
-
-  mLeftProjectionMatrix = nullptr;
-  mLeftViewMatrix = nullptr;
-  mRightProjectionMatrix = nullptr;
-  mRightViewMatrix = nullptr;
-
-  mPose = new VRPose(GetParentObject(), mFrameInfo.mVRState);
-}
-
-void
-VRFrameInfo::Update(const gfx::VRDisplayInfo& aInfo,
-                    const gfx::VRHMDSensorState& aState,
-                    float aDepthNear,
-                    float aDepthFar)
-{
-  mVRState = aState;
-
-  gfx::Quaternion qt;
-  if (mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Orientation) {
-    qt.x = mVRState.orientation[0];
-    qt.y = mVRState.orientation[1];
-    qt.z = mVRState.orientation[2];
-    qt.w = mVRState.orientation[3];
-  }
-  gfx::Point3D pos;
-  if (mVRState.flags & gfx::VRDisplayCapabilityFlags::Cap_Position) {
-    pos.x = -mVRState.position[0];
-    pos.y = -mVRState.position[1];
-    pos.z = -mVRState.position[2];
-  }
-  gfx::Matrix4x4 matHead;
-  matHead.SetRotationFromQuaternion(qt);
-  matHead.PreTranslate(pos);
-
-  mLeftView = matHead;
-  mLeftView.PostTranslate(-aInfo.mEyeTranslation[gfx::VRDisplayInfo::Eye_Left]);
-
-  mRightView = matHead;
-  mRightView.PostTranslate(-aInfo.mEyeTranslation[gfx::VRDisplayInfo::Eye_Right]);
-
-  // Avoid division by zero within ConstructProjectionMatrix
-  const float kEpsilon = 0.00001f;
-  if (fabs(aDepthFar - aDepthNear) < kEpsilon) {
-    aDepthFar = aDepthNear + kEpsilon;
-  }
-
-  const gfx::VRFieldOfView leftFOV = aInfo.mEyeFOV[gfx::VRDisplayInfo::Eye_Left];
-  mLeftProjection = leftFOV.ConstructProjectionMatrix(aDepthNear, aDepthFar, true);
-  const gfx::VRFieldOfView rightFOV = aInfo.mEyeFOV[gfx::VRDisplayInfo::Eye_Right];
-  mRightProjection = rightFOV.ConstructProjectionMatrix(aDepthNear, aDepthFar, true);
-}
-
-VRFrameInfo::VRFrameInfo()
-{
-  mVRState.Clear();
-}
-
-bool
-VRFrameInfo::IsDirty()
-{
-  return mVRState.timestamp == 0;
-}
-
-void
-VRFrameInfo::Clear()
-{
-  mVRState.Clear();
-}
-
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/vr/VRDisplay.h b/dom/vr/VRDisplay.h
deleted file mode 100644
index d40d3d8ac..000000000
--- a/dom/vr/VRDisplay.h
+++ /dev/null
@@ -1,362 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_VRDisplay_h_
-#define mozilla_dom_VRDisplay_h_
-
-#include <stdint.h>
-
-#include "mozilla/ErrorResult.h"
-#include "mozilla/dom/TypedArray.h"
-#include "mozilla/dom/VRDisplayBinding.h"
-#include "mozilla/DOMEventTargetHelper.h"
-#include "mozilla/dom/DOMPoint.h"
-#include "mozilla/dom/DOMRect.h"
-#include "mozilla/dom/Pose.h"
-
-#include "nsCOMPtr.h"
-#include "nsString.h"
-#include "nsTArray.h"
-
-#include "gfxVR.h"
-
-namespace mozilla {
-namespace gfx {
-class VRDisplayClient;
-class VRDisplayPresentation;
-struct VRFieldOfView;
-enum class VRDisplayCapabilityFlags : uint16_t;
-struct VRHMDSensorState;
-}
-namespace dom {
-class Navigator;
-
-class VRFieldOfView final : public nsWrapperCache
-{
-public:
-  VRFieldOfView(nsISupports* aParent,
-                double aUpDegrees, double aRightDegrees,
-                double aDownDegrees, double aLeftDegrees);
-  VRFieldOfView(nsISupports* aParent, const gfx::VRFieldOfView& aSrc);
-
-  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRFieldOfView)
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRFieldOfView)
-
-  double UpDegrees() const { return mUpDegrees; }
-  double RightDegrees() const { return mRightDegrees; }
-  double DownDegrees() const { return mDownDegrees; }
-  double LeftDegrees() const { return mLeftDegrees; }
-
-  nsISupports* GetParentObject() const { return mParent; }
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-protected:
-  virtual ~VRFieldOfView() {}
-
-  nsCOMPtr<nsISupports> mParent;
-
-  double mUpDegrees;
-  double mRightDegrees;
-  double mDownDegrees;
-  double mLeftDegrees;
-};
-
-class VRDisplayCapabilities final : public nsWrapperCache
-{
-public:
-  VRDisplayCapabilities(nsISupports* aParent, const gfx::VRDisplayCapabilityFlags& aFlags)
-    : mParent(aParent)
-    , mFlags(aFlags)
-  {
-  }
-
-  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRDisplayCapabilities)
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRDisplayCapabilities)
-
-  nsISupports* GetParentObject() const
-  {
-    return mParent;
-  }
-
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-  bool HasPosition() const;
-  bool HasOrientation() const;
-  bool HasExternalDisplay() const;
-  bool CanPresent() const;
-  uint32_t MaxLayers() const;
-
-protected:
-  ~VRDisplayCapabilities() {}
-  nsCOMPtr<nsISupports> mParent;
-  gfx::VRDisplayCapabilityFlags mFlags;
-};
-
-class VRPose final : public Pose
-{
-
-public:
-  VRPose(nsISupports* aParent, const gfx::VRHMDSensorState& aState);
-  explicit VRPose(nsISupports* aParent);
-
-  uint32_t FrameID() const { return mFrameId; }
-
-  virtual void GetPosition(JSContext* aCx,
-                           JS::MutableHandle<JSObject*> aRetval,
-                           ErrorResult& aRv) override;
-  virtual void GetLinearVelocity(JSContext* aCx,
-                                 JS::MutableHandle<JSObject*> aRetval,
-                                 ErrorResult& aRv) override;
-  virtual void GetLinearAcceleration(JSContext* aCx,
-                                     JS::MutableHandle<JSObject*> aRetval,
-                                     ErrorResult& aRv) override;
-  virtual void GetOrientation(JSContext* aCx,
-                              JS::MutableHandle<JSObject*> aRetval,
-                              ErrorResult& aRv) override;
-  virtual void GetAngularVelocity(JSContext* aCx,
-                                  JS::MutableHandle<JSObject*> aRetval,
-                                  ErrorResult& aRv) override;
-  virtual void GetAngularAcceleration(JSContext* aCx,
-                                      JS::MutableHandle<JSObject*> aRetval,
-                                      ErrorResult& aRv) override;
-
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-protected:
-  ~VRPose();
-
-  uint32_t mFrameId;
-  gfx::VRHMDSensorState mVRState;
-};
-
-struct VRFrameInfo
-{
-  VRFrameInfo();
-
-  void Update(const gfx::VRDisplayInfo& aInfo,
-              const gfx::VRHMDSensorState& aState,
-              float aDepthNear,
-              float aDepthFar);
-
-  void Clear();
-  bool IsDirty();
-
-  gfx::VRHMDSensorState mVRState;
-  gfx::Matrix4x4 mLeftProjection;
-  gfx::Matrix4x4 mLeftView;
-  gfx::Matrix4x4 mRightProjection;
-  gfx::Matrix4x4 mRightView;
-
-};
-
-class VRFrameData final : public nsWrapperCache
-{
-public:
-  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRFrameData)
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRFrameData)
-
-  explicit VRFrameData(nsISupports* aParent);
-  static already_AddRefed<VRFrameData> Constructor(const GlobalObject& aGlobal,
-                                                   ErrorResult& aRv);
-
-  void Update(const VRFrameInfo& aFrameInfo);
-
-  // WebIDL Members
-  double Timestamp() const;
-  void GetLeftProjectionMatrix(JSContext* aCx,
-                               JS::MutableHandle<JSObject*> aRetval,
-                               ErrorResult& aRv);
-  void GetLeftViewMatrix(JSContext* aCx,
-                         JS::MutableHandle<JSObject*> aRetval,
-                         ErrorResult& aRv);
-  void GetRightProjectionMatrix(JSContext* aCx,
-                               JS::MutableHandle<JSObject*> aRetval,
-                               ErrorResult& aRv);
-  void GetRightViewMatrix(JSContext* aCx,
-                          JS::MutableHandle<JSObject*> aRetval,
-                          ErrorResult& aRv);
-
-  VRPose* Pose();
-
-  // WebIDL Boilerplate
-  nsISupports* GetParentObject() const { return mParent; }
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-protected:
-  ~VRFrameData();
-  nsCOMPtr<nsISupports> mParent;
-
-  VRFrameInfo mFrameInfo;
-  RefPtr<VRPose> mPose;
-  JS::Heap<JSObject*> mLeftProjectionMatrix;
-  JS::Heap<JSObject*> mLeftViewMatrix;
-  JS::Heap<JSObject*> mRightProjectionMatrix;
-  JS::Heap<JSObject*> mRightViewMatrix;
-
-  void LazyCreateMatrix(JS::Heap<JSObject*>& aArray, gfx::Matrix4x4& aMat,
-                        JSContext* aCx, JS::MutableHandle<JSObject*> aRetval,
-                        ErrorResult& aRv);
-};
-
-class VRStageParameters final : public nsWrapperCache
-{
-public:
-  VRStageParameters(nsISupports* aParent,
-                    const gfx::Matrix4x4& aSittingToStandingTransform,
-                    const gfx::Size& aSize);
-
-  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRStageParameters)
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRStageParameters)
-
-  void GetSittingToStandingTransform(JSContext* aCx,
-                                     JS::MutableHandle<JSObject*> aRetval,
-                                     ErrorResult& aRv);
-  float SizeX() const { return mSize.width; }
-  float SizeZ() const { return mSize.height; }
-
-  nsISupports* GetParentObject() const { return mParent; }
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-protected:
-  ~VRStageParameters();
-
-  nsCOMPtr<nsISupports> mParent;
-
-  gfx::Matrix4x4 mSittingToStandingTransform;
-  JS::Heap<JSObject*> mSittingToStandingTransformArray;
-  gfx::Size mSize;
-};
-
-class VREyeParameters final : public nsWrapperCache
-{
-public:
-  VREyeParameters(nsISupports* aParent,
-                  const gfx::Point3D& aEyeTranslation,
-                  const gfx::VRFieldOfView& aFOV,
-                  const gfx::IntSize& aRenderSize);
-
-  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VREyeParameters)
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VREyeParameters)
-
-  void GetOffset(JSContext* aCx, JS::MutableHandle<JSObject*> aRetVal,
-                 ErrorResult& aRv);
-
-  VRFieldOfView* FieldOfView();
-
-  uint32_t RenderWidth() const { return mRenderSize.width; }
-  uint32_t RenderHeight() const { return mRenderSize.height; }
-
-  nsISupports* GetParentObject() const { return mParent; }
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-protected:
-  ~VREyeParameters();
-
-  nsCOMPtr<nsISupports> mParent;
-
-
-  gfx::Point3D mEyeTranslation;
-  gfx::IntSize mRenderSize;
-  JS::Heap<JSObject*> mOffset;
-  RefPtr<VRFieldOfView> mFOV;
-};
-
-class VRDisplay final : public DOMEventTargetHelper
-                      , public nsIObserver
-{
-public:
-  NS_DECL_ISUPPORTS_INHERITED
-  NS_DECL_NSIOBSERVER
-  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(VRDisplay, DOMEventTargetHelper)
-
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
-
-  bool IsPresenting() const;
-  bool IsConnected() const;
-
-  VRDisplayCapabilities* Capabilities();
-  VRStageParameters* GetStageParameters();
-
-  uint32_t DisplayId() const { return mDisplayId; }
-  void GetDisplayName(nsAString& aDisplayName) const { aDisplayName = mDisplayName; }
-
-  static bool RefreshVRDisplays(uint64_t aWindowId);
-  static void UpdateVRDisplays(nsTArray<RefPtr<VRDisplay> >& aDisplays,
-                               nsPIDOMWindowInner* aWindow);
-
-  gfx::VRDisplayClient *GetClient() {
-    return mClient;
-  }
-
-  virtual already_AddRefed<VREyeParameters> GetEyeParameters(VREye aEye);
-
-  bool GetFrameData(VRFrameData& aFrameData);
-  already_AddRefed<VRPose> GetPose();
-  void ResetPose();
-
-  double DepthNear() {
-    return mDepthNear;
-  }
-
-  double DepthFar() {
-    return mDepthFar;
-  }
-
-  void SetDepthNear(double aDepthNear) {
-    // XXX When we start sending depth buffers to VRLayer's we will want
-    // to communicate this with the VRDisplayHost
-    mDepthNear = aDepthNear;
-  }
-
-  void SetDepthFar(double aDepthFar) {
-    // XXX When we start sending depth buffers to VRLayer's we will want
-    // to communicate this with the VRDisplayHost
-    mDepthFar = aDepthFar;
-  }
-
-  already_AddRefed<Promise> RequestPresent(const nsTArray<VRLayer>& aLayers, ErrorResult& aRv);
-  already_AddRefed<Promise> ExitPresent(ErrorResult& aRv);
-  void GetLayers(nsTArray<VRLayer>& result);
-  void SubmitFrame();
-
-  int32_t RequestAnimationFrame(mozilla::dom::FrameRequestCallback& aCallback,
-                                mozilla::ErrorResult& aError);
-  void CancelAnimationFrame(int32_t aHandle, mozilla::ErrorResult& aError);
-
-protected:
-  VRDisplay(nsPIDOMWindowInner* aWindow, gfx::VRDisplayClient* aClient);
-  virtual ~VRDisplay();
-  virtual void LastRelease() override;
-
-  void ExitPresentInternal();
-  void UpdateFrameInfo();
-
-  RefPtr<gfx::VRDisplayClient> mClient;
-
-  uint32_t mDisplayId;
-  nsString mDisplayName;
-
-  RefPtr<VRDisplayCapabilities> mCapabilities;
-  RefPtr<VRStageParameters> mStageParameters;
-
-  double mDepthNear;
-  double mDepthFar;
-
-  RefPtr<gfx::VRDisplayPresentation> mPresentation;
-
-  /**
-  * The WebVR 1.1 spec Requires that VRDisplay.getPose and VRDisplay.getFrameData
-  * must return the same values until the next VRDisplay.submitFrame.
-  * mFrameInfo is updated only on the first call to either function within one
-  * frame.  Subsequent calls before the next SubmitFrame or ExitPresent call
-  * will use these cached values.
-  */
-  VRFrameInfo mFrameInfo;
-};
-
-} // namespace dom
-} // namespace mozilla
-
-#endif
diff --git a/dom/vr/VREventObserver.cpp b/dom/vr/VREventObserver.cpp
deleted file mode 100644
index 1b6d1b978..000000000
--- a/dom/vr/VREventObserver.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VREventObserver.h"
-
-#include "nsContentUtils.h"
-#include "nsGlobalWindow.h"
-#include "VRManagerChild.h"
-
-namespace mozilla {
-namespace dom {
-
-using namespace gfx;
-
-/**
- * This class is used by nsGlobalWindow to implement window.onvrdisplayconnected,
- * window.onvrdisplaydisconnected, and window.onvrdisplaypresentchange.
- */
-VREventObserver::VREventObserver(nsGlobalWindow* aGlobalWindow)
-  : mWindow(aGlobalWindow)
-{
-  MOZ_ASSERT(aGlobalWindow && aGlobalWindow->IsInnerWindow());
-
-  VRManagerChild* vmc = VRManagerChild::Get();
-  if (vmc) {
-    vmc->AddListener(this);
-  }
-}
-
-VREventObserver::~VREventObserver()
-{
-  VRManagerChild* vmc = VRManagerChild::Get();
-  if (vmc) {
-    vmc->RemoveListener(this);
-  }
-}
-
-void
-VREventObserver::NotifyVRDisplayConnect()
-{
-  /**
-   * We do not call nsGlobalWindow::NotifyActiveVRDisplaysChanged here, as we
-   * can assume that a newly enumerated display is not presenting WebVR
-   * content.
-   */
-  if (mWindow->AsInner()->IsCurrentInnerWindow()) {
-    MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
-    mWindow->GetOuterWindow()->DispatchCustomEvent(
-      NS_LITERAL_STRING("vrdisplayconnected"));
-  }
-}
-
-void
-VREventObserver::NotifyVRDisplayDisconnect()
-{
-  if (mWindow->AsInner()->IsCurrentInnerWindow()) {
-    mWindow->NotifyActiveVRDisplaysChanged();
-    MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
-    mWindow->GetOuterWindow()->DispatchCustomEvent(
-      NS_LITERAL_STRING("vrdisplaydisconnected"));
-  }
-}
-
-void
-VREventObserver::NotifyVRDisplayPresentChange()
-{
-  if (mWindow->AsInner()->IsCurrentInnerWindow()) {
-    mWindow->NotifyActiveVRDisplaysChanged();
-    MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
-    mWindow->GetOuterWindow()->DispatchCustomEvent(
-      NS_LITERAL_STRING("vrdisplaypresentchange"));
-  }
-}
-
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/vr/VREventObserver.h b/dom/vr/VREventObserver.h
deleted file mode 100644
index a30bb5960..000000000
--- a/dom/vr/VREventObserver.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this file,
-* You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_VREventObserver_h
-#define mozilla_dom_VREventObserver_h
-
-class nsGlobalWindow;
-
-namespace mozilla {
-namespace dom {
-
-class VREventObserver final
-{
-public:
-  ~VREventObserver();
-  explicit VREventObserver(nsGlobalWindow* aGlobalWindow);
-
-  void NotifyVRDisplayConnect();
-  void NotifyVRDisplayDisconnect();
-  void NotifyVRDisplayPresentChange();
-
-private:
-  // Weak pointer, instance is owned by mWindow.
-  nsGlobalWindow* MOZ_NON_OWNING_REF mWindow;
-};
-
-} // namespace dom
-} // namespace mozilla
-
-#endif // mozilla_dom_VREventObserver_h
diff --git a/dom/vr/moz.build b/dom/vr/moz.build
deleted file mode 100644
index a4aa8d69b..000000000
--- a/dom/vr/moz.build
+++ /dev/null
@@ -1,22 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-EXPORTS.mozilla.dom += [
-    'VRDisplay.h',
-    'VREventObserver.h',
-    ]
-
-UNIFIED_SOURCES = [
-    'VRDisplay.cpp',
-    'VREventObserver.cpp',
-    ]
-
-include('/ipc/chromium/chromium-config.mozbuild')
-
-FINAL_LIBRARY = 'xul'
-LOCAL_INCLUDES += [
-    '/dom/base'
-]
diff --git a/dom/webidl/Navigator.webidl b/dom/webidl/Navigator.webidl
index 5452f3247..c353e8be7 100644
--- a/dom/webidl/Navigator.webidl
+++ b/dom/webidl/Navigator.webidl
@@ -268,14 +268,6 @@ partial interface Navigator {
 };
 #endif // MOZ_GAMEPAD
 
-partial interface Navigator {
-  [Throws, Pref="dom.vr.enabled"]
-  Promise<sequence<VRDisplay>> getVRDisplays();
-  // TODO: Use FrozenArray once available. (Bug 1236777)
-  [Frozen, Cached, Pure, Pref="dom.vr.enabled"]
-  readonly attribute sequence<VRDisplay> activeVRDisplays;
-};
-
 #ifdef MOZ_TIME_MANAGER
 // nsIDOMMozNavigatorTime
 partial interface Navigator {
diff --git a/dom/webidl/VRDisplay.webidl b/dom/webidl/VRDisplay.webidl
deleted file mode 100644
index 63ebd1205..000000000
--- a/dom/webidl/VRDisplay.webidl
+++ /dev/null
@@ -1,286 +0,0 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-enum VREye {
-  "left",
-  "right"
-};
-
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRFieldOfView {
-  readonly attribute double upDegrees;
-  readonly attribute double rightDegrees;
-  readonly attribute double downDegrees;
-  readonly attribute double leftDegrees;
-};
-
-typedef (HTMLCanvasElement or OffscreenCanvas) VRSource;
-
-dictionary VRLayer {
-  /**
-   * XXX - When WebVR in WebWorkers is implemented, HTMLCanvasElement below
-   *       should be replaced with VRSource.
-   */
-  HTMLCanvasElement? source = null;
-
-  /**
-   * The left and right viewports contain 4 values defining the viewport
-   * rectangles within the canvas to present to the eye in UV space.
-   * [0] left offset of the viewport (0.0 - 1.0)
-   * [1] top offset of the viewport (0.0 - 1.0)
-   * [2] width of the viewport (0.0 - 1.0)
-   * [3] height of the viewport (0.0 - 1.0)
-   *
-   * When no values are passed, they will be processed as though the left
-   * and right sides of the viewport were passed:
-   *
-   * leftBounds: [0.0, 0.0, 0.5, 1.0]
-   * rightBounds: [0.5, 0.0, 0.5, 1.0]
-   */
-  sequence<float> leftBounds = [];
-  sequence<float> rightBounds = [];
-};
-
-/**
- * Values describing the capabilities of a VRDisplay.
- * These are expected to be static per-device/per-user.
- */
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRDisplayCapabilities {
-  /**
-   * hasPosition is true if the VRDisplay is capable of tracking its position.
-   */
-  readonly attribute boolean hasPosition;
-
-  /**
-   * hasOrientation is true if the VRDisplay is capable of tracking its orientation.
-   */
-  readonly attribute boolean hasOrientation;
-
-  /**
-   * Whether the VRDisplay is separate from the device’s
-   * primary display. If presenting VR content will obscure
-   * other content on the device, this should be false. When
-   * false, the application should not attempt to mirror VR content
-   * or update non-VR UI because that content will not be visible.
-   */
-  readonly attribute boolean hasExternalDisplay;
-
-  /**
-   * Whether the VRDisplay is capable of presenting content to an HMD or similar device.
-   * Can be used to indicate “magic window” devices that are capable of 6DoF tracking but for
-   * which requestPresent is not meaningful. If false then calls to requestPresent should
-   * always fail, and getEyeParameters should return null.
-   */
-  readonly attribute boolean canPresent;
-
-  /**
-   * Indicates the maximum length of the array that requestPresent() will accept. MUST be 1 if
-     canPresent is true, 0 otherwise.
-   */
-  readonly attribute unsigned long maxLayers;
-};
-
-/**
- * Values describing the the stage / play area for devices
- * that support room-scale experiences.
- */
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRStageParameters {
-  /**
-   * A 16-element array containing the components of a column-major 4x4
-   * affine transform matrix. This matrix transforms the sitting-space position
-   * returned by get{Immediate}Pose() to a standing-space position.
-   */
-  [Throws] readonly attribute Float32Array sittingToStandingTransform;
-
-  /**
-   * Dimensions of the play-area bounds. The bounds are defined
-   * as an axis-aligned rectangle on the floor.
-   * The center of the rectangle is at (0,0,0) in standing-space
-   * coordinates.
-   * These bounds are defined for safety purposes.
-   * Content should not require the user to move beyond these
-   * bounds; however, it is possible for the user to ignore
-   * the bounds resulting in position values outside of
-   * this rectangle.
-   */
-  readonly attribute float sizeX;
-  readonly attribute float sizeZ;
-};
-
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRPose
-{
-  /**
-   * position, linearVelocity, and linearAcceleration are 3-component vectors.
-   * position is relative to a sitting space. Transforming this point with
-   * VRStageParameters.sittingToStandingTransform converts this to standing space.
-   */
-  [Constant, Throws] readonly attribute Float32Array? position;
-  [Constant, Throws] readonly attribute Float32Array? linearVelocity;
-  [Constant, Throws] readonly attribute Float32Array? linearAcceleration;
-
-  /* orientation is a 4-entry array representing the components of a quaternion. */
-  [Constant, Throws] readonly attribute Float32Array? orientation;
-  /* angularVelocity and angularAcceleration are the components of 3-dimensional vectors. */
-  [Constant, Throws] readonly attribute Float32Array? angularVelocity;
-  [Constant, Throws] readonly attribute Float32Array? angularAcceleration;
-};
-
-[Constructor,
- Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRFrameData {
-  readonly attribute DOMHighResTimeStamp timestamp;
-
-  [Throws, Pure] readonly attribute Float32Array leftProjectionMatrix;
-  [Throws, Pure] readonly attribute Float32Array leftViewMatrix;
-
-  [Throws, Pure] readonly attribute Float32Array rightProjectionMatrix;
-  [Throws, Pure] readonly attribute Float32Array rightViewMatrix;
-
-  [Pure] readonly attribute VRPose pose;
-};
-
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VREyeParameters {
-  /**
-   * offset is a 3-component vector representing an offset to
-   * translate the eye. This value may vary from frame
-   * to frame if the user adjusts their headset ipd.
-   */
-  [Constant, Throws] readonly attribute Float32Array offset;
-
-  /* These values may vary as the user adjusts their headset ipd. */
-  [Constant] readonly attribute VRFieldOfView fieldOfView;
-
-  /**
-   * renderWidth and renderHeight specify the recommended render target
-   * size of each eye viewport, in pixels. If multiple eyes are rendered
-   * in a single render target, then the render target should be made large
-   * enough to fit both viewports.
-   */
-  [Constant] readonly attribute unsigned long renderWidth;
-  [Constant] readonly attribute unsigned long renderHeight;
-};
-
-[Pref="dom.vr.enabled",
- HeaderFile="mozilla/dom/VRDisplay.h"]
-interface VRDisplay : EventTarget {
-  readonly attribute boolean isConnected;
-  readonly attribute boolean isPresenting;
-
-  /**
-   * Dictionary of capabilities describing the VRDisplay.
-   */
-  [Constant] readonly attribute VRDisplayCapabilities capabilities;
-
-  /**
-   * If this VRDisplay supports room-scale experiences, the optional
-   * stage attribute contains details on the room-scale parameters.
-   */
-  readonly attribute VRStageParameters? stageParameters;
-
-  /* Return the current VREyeParameters for the given eye. */
-  VREyeParameters getEyeParameters(VREye whichEye);
-
-  /**
-   * An identifier for this distinct VRDisplay. Used as an
-   * association point in the Gamepad API.
-   */
-  [Constant] readonly attribute unsigned long displayId;
-
-  /**
-   * A display name, a user-readable name identifying it.
-   */
-  [Constant] readonly attribute DOMString displayName;
-
-  /**
-   * Populates the passed VRFrameData with the information required to render
-   * the current frame.
-   */
-  boolean getFrameData(VRFrameData frameData);
-
-  /**
-   * Return a VRPose containing the future predicted pose of the VRDisplay
-   * when the current frame will be presented. Subsequent calls to getPose()
-   * MUST return a VRPose with the same values until the next call to
-   * submitFrame().
-   *
-   * The VRPose will contain the position, orientation, velocity,
-   * and acceleration of each of these properties.
-   */
-  [NewObject] VRPose getPose();
-
-  /**
-   * Reset the pose for this display, treating its current position and
-   * orientation as the "origin/zero" values. VRPose.position,
-   * VRPose.orientation, and VRStageParameters.sittingToStandingTransform may be
-   * updated when calling resetPose(). This should be called in only
-   * sitting-space experiences.
-   */
-  void resetPose();
-
-  /**
-   * z-depth defining the near plane of the eye view frustum
-   * enables mapping of values in the render target depth
-   * attachment to scene coordinates. Initially set to 0.01.
-   */
-  attribute double depthNear;
-
-  /**
-   * z-depth defining the far plane of the eye view frustum
-   * enables mapping of values in the render target depth
-   * attachment to scene coordinates. Initially set to 10000.0.
-   */
-  attribute double depthFar;
-
-  /**
-   * The callback passed to `requestAnimationFrame` will be called
-   * any time a new frame should be rendered. When the VRDisplay is
-   * presenting the callback will be called at the native refresh
-   * rate of the HMD. When not presenting this function acts
-   * identically to how window.requestAnimationFrame acts. Content should
-   * make no assumptions of frame rate or vsync behavior as the HMD runs
-   * asynchronously from other displays and at differing refresh rates.
-   */
-  [Throws] long requestAnimationFrame(FrameRequestCallback callback);
-
-  /**
-   * Passing the value returned by `requestAnimationFrame` to
-   * `cancelAnimationFrame` will unregister the callback.
-   */
-  [Throws] void cancelAnimationFrame(long handle);
-
-  /**
-   * Begin presenting to the VRDisplay. Must be called in response to a user gesture.
-   * Repeat calls while already presenting will update the VRLayers being displayed.
-   */
-  [Throws] Promise<void> requestPresent(sequence<VRLayer> layers);
-
-  /**
-   * Stops presenting to the VRDisplay.
-   */
-  [Throws] Promise<void> exitPresent();
-
-  /**
-   * Get the layers currently being presented.
-   */
-  sequence<VRLayer> getLayers();
-
-  /**
-   * The VRLayer provided to the VRDisplay will be captured and presented
-   * in the HMD. Calling this function has the same effect on the source
-   * canvas as any other operation that uses its source image, and canvases
-   * created without preserveDrawingBuffer set to true will be cleared.
-   */
-  void submitFrame();
-};
diff --git a/dom/webidl/moz.build b/dom/webidl/moz.build
index 4c2567a1c..06fea2f20 100644
--- a/dom/webidl/moz.build
+++ b/dom/webidl/moz.build
@@ -555,7 +555,6 @@ WEBIDL_FILES = [
     'VideoStreamTrack.webidl',
     'VideoTrack.webidl',
     'VideoTrackList.webidl',
-    'VRDisplay.webidl',
     'VTTCue.webidl',
     'VTTRegion.webidl',
     'WaveShaperNode.webidl',
diff --git a/gfx/ipc/GPUParent.cpp b/gfx/ipc/GPUParent.cpp
index b693f4728..9ff6cba9e 100644
--- a/gfx/ipc/GPUParent.cpp
+++ b/gfx/ipc/GPUParent.cpp
@@ -28,8 +28,6 @@
 #include "nsThreadManager.h"
 #include "prenv.h"
 #include "ProcessUtils.h"
-#include "VRManager.h"
-#include "VRManagerParent.h"
 #include "VsyncBridgeParent.h"
 #if defined(XP_WIN)
 # include "DeviceManagerD3D9.h"
@@ -100,7 +98,6 @@ GPUParent::Init(base::ProcessId aParentPid,
   CompositorThreadHolder::Start();
   APZThreadUtils::SetControllerThread(CompositorThreadHolder::Loop());
   APZCTreeManager::InitializeGlobalState();
-  VRManager::ManagerInit();
   LayerTreeOwnerTracker::Initialize();
   mozilla::ipc::SetThisProcessName("GPU Process");
 #ifdef XP_WIN
@@ -203,13 +200,6 @@ GPUParent::RecvInitImageBridge(Endpoint<PImageBridgeParent>&& aEndpoint)
 }
 
 bool
-GPUParent::RecvInitVRManager(Endpoint<PVRManagerParent>&& aEndpoint)
-{
-  VRManagerParent::CreateForGPUProcess(Move(aEndpoint));
-  return true;
-}
-
-bool
 GPUParent::RecvUpdatePref(const GfxPrefSetting& setting)
 {
   gfxPrefs::Pref* pref = gfxPrefs::all()[setting.index()];
@@ -302,12 +292,6 @@ GPUParent::RecvNewContentImageBridge(Endpoint<PImageBridgeParent>&& aEndpoint)
 }
 
 bool
-GPUParent::RecvNewContentVRManager(Endpoint<PVRManagerParent>&& aEndpoint)
-{
-  return VRManagerParent::CreateForContent(Move(aEndpoint));
-}
-
-bool
 GPUParent::RecvNewContentVideoDecoderManager(Endpoint<PVideoDecoderManagerParent>&& aEndpoint)
 {
   return dom::VideoDecoderManagerParent::CreateForContent(Move(aEndpoint));
diff --git a/gfx/ipc/GPUParent.h b/gfx/ipc/GPUParent.h
index 126efce50..3c0494bd4 100644
--- a/gfx/ipc/GPUParent.h
+++ b/gfx/ipc/GPUParent.h
@@ -32,7 +32,6 @@ public:
                 const DevicePrefs& devicePrefs) override;
   bool RecvInitVsyncBridge(Endpoint<PVsyncBridgeParent>&& aVsyncEndpoint) override;
   bool RecvInitImageBridge(Endpoint<PImageBridgeParent>&& aEndpoint) override;
-  bool RecvInitVRManager(Endpoint<PVRManagerParent>&& aEndpoint) override;
   bool RecvUpdatePref(const GfxPrefSetting& pref) override;
   bool RecvUpdateVar(const GfxVarUpdate& pref) override;
   bool RecvNewWidgetCompositor(
@@ -43,7 +42,6 @@ public:
     const IntSize& aSurfaceSize) override;
   bool RecvNewContentCompositorBridge(Endpoint<PCompositorBridgeParent>&& aEndpoint) override;
   bool RecvNewContentImageBridge(Endpoint<PImageBridgeParent>&& aEndpoint) override;
-  bool RecvNewContentVRManager(Endpoint<PVRManagerParent>&& aEndpoint) override;
   bool RecvNewContentVideoDecoderManager(Endpoint<PVideoDecoderManagerParent>&& aEndpoint) override;
   bool RecvGetDeviceStatus(GPUDeviceData* aOutStatus) override;
   bool RecvAddLayerTreeIdMapping(nsTArray<LayerTreeIdMapping>&& aMappings) override;
diff --git a/gfx/ipc/GPUProcessManager.cpp b/gfx/ipc/GPUProcessManager.cpp
index 0b55cd9b7..8aaf0f1d0 100644
--- a/gfx/ipc/GPUProcessManager.cpp
+++ b/gfx/ipc/GPUProcessManager.cpp
@@ -22,8 +22,6 @@
 #endif
 #include "nsBaseWidget.h"
 #include "nsContentUtils.h"
-#include "VRManagerChild.h"
-#include "VRManagerParent.h"
 #include "VsyncBridgeChild.h"
 #include "VsyncIOThreadHolder.h"
 #include "VsyncSource.h"
@@ -197,36 +195,6 @@ GPUProcessManager::EnsureImageBridgeChild()
 }
 
 void
-GPUProcessManager::EnsureVRManager()
-{
-  if (VRManagerChild::IsCreated()) {
-    return;
-  }
-
-  EnsureGPUReady();
-
-  if (!mGPUChild) {
-    VRManagerChild::InitSameProcess();
-    return;
-  }
-
-  ipc::Endpoint<PVRManagerParent> parentPipe;
-  ipc::Endpoint<PVRManagerChild> childPipe;
-  nsresult rv = PVRManager::CreateEndpoints(
-    mGPUChild->OtherPid(),
-    base::GetCurrentProcId(),
-    &parentPipe,
-    &childPipe);
-  if (NS_FAILED(rv)) {
-    DisableGPUProcess("Failed to create PVRManager endpoints");
-    return;
-  }
-
-  mGPUChild->SendInitVRManager(Move(parentPipe));
-  VRManagerChild::InitWithGPUProcess(Move(childPipe));
-}
-
-void
 GPUProcessManager::OnProcessLaunchComplete(GPUProcessHost* aHost)
 {
   MOZ_ASSERT(mProcess && mProcess == aHost);
@@ -488,7 +456,6 @@ GPUProcessManager::CreateTopLevelCompositor(nsBaseWidget* aWidget,
 
   EnsureGPUReady();
   EnsureImageBridgeChild();
-  EnsureVRManager();
 
   if (mGPUChild) {
     RefPtr<CompositorSession> session = CreateRemoteSession(
@@ -599,12 +566,10 @@ bool
 GPUProcessManager::CreateContentBridges(base::ProcessId aOtherProcess,
                                         ipc::Endpoint<PCompositorBridgeChild>* aOutCompositor,
                                         ipc::Endpoint<PImageBridgeChild>* aOutImageBridge,
-                                        ipc::Endpoint<PVRManagerChild>* aOutVRBridge,
                                         ipc::Endpoint<dom::PVideoDecoderManagerChild>* aOutVideoManager)
 {
   if (!CreateContentCompositorBridge(aOtherProcess, aOutCompositor) ||
-      !CreateContentImageBridge(aOtherProcess, aOutImageBridge) ||
-      !CreateContentVRManager(aOtherProcess, aOutVRBridge))
+      !CreateContentImageBridge(aOtherProcess, aOutImageBridge))
   {
     return false;
   }
@@ -692,40 +657,6 @@ GPUProcessManager::GPUProcessPid()
   return gpuPid;
 }
 
-bool
-GPUProcessManager::CreateContentVRManager(base::ProcessId aOtherProcess,
-                                          ipc::Endpoint<PVRManagerChild>* aOutEndpoint)
-{
-  EnsureVRManager();
-
-  base::ProcessId gpuPid = mGPUChild
-                           ? mGPUChild->OtherPid()
-                           : base::GetCurrentProcId();
-
-  ipc::Endpoint<PVRManagerParent> parentPipe;
-  ipc::Endpoint<PVRManagerChild> childPipe;
-  nsresult rv = PVRManager::CreateEndpoints(
-    gpuPid,
-    aOtherProcess,
-    &parentPipe,
-    &childPipe);
-  if (NS_FAILED(rv)) {
-    gfxCriticalNote << "Could not create content compositor bridge: " << hexa(int(rv));
-    return false;
-  }
-
-  if (mGPUChild) {
-    mGPUChild->SendNewContentVRManager(Move(parentPipe));
-  } else {
-    if (!VRManagerParent::CreateForContent(Move(parentPipe))) {
-      return false;
-    }
-  }
-
-  *aOutEndpoint = Move(childPipe);
-  return true;
-}
-
 void
 GPUProcessManager::CreateContentVideoDecoderManager(base::ProcessId aOtherProcess,
                                                     ipc::Endpoint<dom::PVideoDecoderManagerChild>* aOutEndpoint)
diff --git a/gfx/ipc/GPUProcessManager.h b/gfx/ipc/GPUProcessManager.h
index 84ed03609..5d4279094 100644
--- a/gfx/ipc/GPUProcessManager.h
+++ b/gfx/ipc/GPUProcessManager.h
@@ -45,7 +45,6 @@ namespace gfx {
 
 class GPUChild;
 class GPUProcessListener;
-class PVRManagerChild;
 class VsyncBridgeChild;
 class VsyncIOThreadHolder;
 
@@ -91,7 +90,6 @@ public:
     base::ProcessId aOtherProcess,
     ipc::Endpoint<PCompositorBridgeChild>* aOutCompositor,
     ipc::Endpoint<PImageBridgeChild>* aOutImageBridge,
-    ipc::Endpoint<PVRManagerChild>* aOutVRBridge,
     ipc::Endpoint<dom::PVideoDecoderManagerChild>* aOutVideoManager);
 
   // This returns a reference to the APZCTreeManager to which
@@ -156,8 +154,6 @@ private:
                                      ipc::Endpoint<PCompositorBridgeChild>* aOutEndpoint);
   bool CreateContentImageBridge(base::ProcessId aOtherProcess,
                                 ipc::Endpoint<PImageBridgeChild>* aOutEndpoint);
-  bool CreateContentVRManager(base::ProcessId aOtherProcess,
-                              ipc::Endpoint<PVRManagerChild>* aOutEndpoint);
   void CreateContentVideoDecoderManager(base::ProcessId aOtherProcess,
                                         ipc::Endpoint<dom::PVideoDecoderManagerChild>* aOutEndPoint);
 
@@ -182,7 +178,6 @@ private:
   void ShutdownVsyncIOThread();
 
   void EnsureImageBridgeChild();
-  void EnsureVRManager();
 
   RefPtr<CompositorSession> CreateRemoteSession(
     nsBaseWidget* aWidget,
diff --git a/gfx/ipc/PGPU.ipdl b/gfx/ipc/PGPU.ipdl
index d36c51394..a2c035c75 100644
--- a/gfx/ipc/PGPU.ipdl
+++ b/gfx/ipc/PGPU.ipdl
@@ -6,7 +6,6 @@
 include GraphicsMessages;
 include protocol PCompositorBridge;
 include protocol PImageBridge;
-include protocol PVRManager;
 include protocol PVsyncBridge;
 include protocol PVideoDecoderManager;
 
@@ -47,7 +46,6 @@ parent:
 
   async InitVsyncBridge(Endpoint<PVsyncBridgeParent> endpoint);
   async InitImageBridge(Endpoint<PImageBridgeParent> endpoint);
-  async InitVRManager(Endpoint<PVRManagerParent> endpoint);
 
   // Called to update a gfx preference or variable.
   async UpdatePref(GfxPrefSetting pref);
@@ -63,7 +61,6 @@ parent:
   // Create a new content-process compositor bridge.
   async NewContentCompositorBridge(Endpoint<PCompositorBridgeParent> endpoint);
   async NewContentImageBridge(Endpoint<PImageBridgeParent> endpoint);
-  async NewContentVRManager(Endpoint<PVRManagerParent> endpoint);
   async NewContentVideoDecoderManager(Endpoint<PVideoDecoderManagerParent> endpoint);
 
   // Called to notify the GPU process of who owns a layersId.
diff --git a/gfx/layers/d3d11/TextureD3D11.cpp b/gfx/layers/d3d11/TextureD3D11.cpp
index 954242585..628ca1288 100644
--- a/gfx/layers/d3d11/TextureD3D11.cpp
+++ b/gfx/layers/d3d11/TextureD3D11.cpp
@@ -1160,8 +1160,7 @@ CompositingRenderTargetD3D11::CompositingRenderTargetD3D11(ID3D11Texture2D* aTex
   mFormatOverride = aFormatOverride;
 
   // If we happen to have a typeless underlying DXGI surface, we need to be explicit
-  // about the format here. (Such a surface could come from an external source, such
-  // as the Oculus compositor)
+  // about the format here. (Such a surface could come from an external source)
   CD3D11_RENDER_TARGET_VIEW_DESC rtvDesc(D3D11_RTV_DIMENSION_TEXTURE2D, mFormatOverride);
   D3D11_RENDER_TARGET_VIEW_DESC *desc = aFormatOverride == DXGI_FORMAT_UNKNOWN ? nullptr : &rtvDesc;
 
diff --git a/gfx/layers/ipc/CompositorBridgeParent.cpp b/gfx/layers/ipc/CompositorBridgeParent.cpp
index 00602fab5..87a19f5c0 100644
--- a/gfx/layers/ipc/CompositorBridgeParent.cpp
+++ b/gfx/layers/ipc/CompositorBridgeParent.cpp
@@ -30,7 +30,6 @@
 #include "mozilla/gfx/2D.h"          // for DrawTarget
 #include "mozilla/gfx/Point.h"          // for IntSize
 #include "mozilla/gfx/Rect.h"          // for IntSize
-#include "VRManager.h"                  // for VRManager
 #include "mozilla/ipc/Transport.h"      // for Transport
 #include "mozilla/layers/APZCTreeManager.h"  // for APZCTreeManager
 #include "mozilla/layers/APZCTreeManagerParent.h"  // for APZCTreeManagerParent
@@ -475,7 +474,6 @@ CompositorVsyncScheduler::Composite(TimeStamp aVsyncTimestamp)
   }
 
   DispatchTouchEvents(aVsyncTimestamp);
-  DispatchVREvents(aVsyncTimestamp);
 
   if (mNeedsComposite || mAsapScheduling) {
     mNeedsComposite = 0;
@@ -542,15 +540,6 @@ CompositorVsyncScheduler::DispatchTouchEvents(TimeStamp aVsyncTimestamp)
 }
 
 void
-CompositorVsyncScheduler::DispatchVREvents(TimeStamp aVsyncTimestamp)
-{
-  MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-
-  VRManager* vm = VRManager::Get();
-  vm->NotifyVsync(aVsyncTimestamp);
-}
-
-void
 CompositorVsyncScheduler::ScheduleTask(already_AddRefed<CancelableRunnable> aTask,
                                        int aTime)
 {
diff --git a/gfx/layers/ipc/CompositorThread.cpp b/gfx/layers/ipc/CompositorThread.cpp
index 789a5d5d3..3f75832b6 100644
--- a/gfx/layers/ipc/CompositorThread.cpp
+++ b/gfx/layers/ipc/CompositorThread.cpp
@@ -12,11 +12,6 @@
 
 namespace mozilla {
 
-namespace gfx {
-// See VRManagerChild.cpp
-void ReleaseVRManagerParentSingleton();
-} // namespace gfx
-
 namespace layers {
 
 static StaticRefPtr<CompositorThreadHolder> sCompositorThreadHolder;
@@ -130,7 +125,6 @@ CompositorThreadHolder::Shutdown()
   MOZ_ASSERT(sCompositorThreadHolder, "The compositor thread has already been shut down!");
 
   ReleaseImageBridgeParentSingleton();
-  gfx::ReleaseVRManagerParentSingleton();
   MediaSystemResourceService::Shutdown();
 
   sCompositorThreadHolder = nullptr;
diff --git a/gfx/layers/ipc/CrossProcessCompositorBridgeParent.cpp b/gfx/layers/ipc/CrossProcessCompositorBridgeParent.cpp
index c3ea33149..8bb5cf2d5 100644
--- a/gfx/layers/ipc/CrossProcessCompositorBridgeParent.cpp
+++ b/gfx/layers/ipc/CrossProcessCompositorBridgeParent.cpp
@@ -30,7 +30,6 @@
 #include "mozilla/gfx/2D.h"          // for DrawTarget
 #include "mozilla/gfx/Point.h"          // for IntSize
 #include "mozilla/gfx/Rect.h"          // for IntSize
-#include "VRManager.h"                  // for VRManager
 #include "mozilla/ipc/Transport.h"      // for Transport
 #include "mozilla/layers/APZCTreeManager.h"  // for APZCTreeManager
 #include "mozilla/layers/APZCTreeManagerParent.h"  // for APZCTreeManagerParent
diff --git a/gfx/layers/ipc/PTexture.ipdl b/gfx/layers/ipc/PTexture.ipdl
index bccff8627..7c1979bf0 100644
--- a/gfx/layers/ipc/PTexture.ipdl
+++ b/gfx/layers/ipc/PTexture.ipdl
@@ -9,7 +9,6 @@ include LayersSurfaces;
 include protocol PLayerTransaction;
 include protocol PCompositorBridge;
 include protocol PImageBridge;
-include protocol PVRManager;
 include protocol PVideoBridge;
 include "mozilla/GfxMessageUtils.h";
 
@@ -23,7 +22,7 @@ namespace layers {
  * PTexture is the IPDL glue between a TextureClient and a TextureHost.
  */
 sync protocol PTexture {
-    manager PImageBridge or PCompositorBridge or PVRManager or PVideoBridge;
+    manager PImageBridge or PCompositorBridge or PVideoBridge;
 
 child:
     async __delete__();
diff --git a/gfx/moz.build b/gfx/moz.build
index 250919891..428285a0a 100644
--- a/gfx/moz.build
+++ b/gfx/moz.build
@@ -20,7 +20,6 @@ DIRS += [
     'ots/src',
     'thebes',
     'ipc',
-    'vr',
     'config',
 ]
 
diff --git a/gfx/thebes/gfxPlatform.cpp b/gfx/thebes/gfxPlatform.cpp
index 65227a8a7..70ba2fe6a 100644
--- a/gfx/thebes/gfxPlatform.cpp
+++ b/gfx/thebes/gfxPlatform.cpp
@@ -131,8 +131,6 @@ class mozilla::gl::SkiaGLGlue : public GenericAtomicRefCounted {
 #include "SoftwareVsyncSource.h"
 #include "nscore.h" // for NS_FREE_PERMANENT_DATA
 #include "mozilla/dom/ContentChild.h"
-#include "gfxVR.h"
-#include "VRManagerChild.h"
 #include "mozilla/gfx/GPUParent.h"
 #include "prsystem.h"
 
@@ -492,8 +490,6 @@ gfxPlatform::gfxPlatform()
                      contentMask, BackendType::CAIRO);
 
     mTotalSystemMemory = PR_GetPhysicalMemorySize();
-
-    VRManager::ManagerInit();
 }
 
 gfxPlatform*
@@ -900,14 +896,12 @@ gfxPlatform::ShutdownLayersIPC()
     sLayersIPCIsUp = false;
 
     if (XRE_IsContentProcess()) {
-        gfx::VRManagerChild::ShutDown();
         // cf bug 1215265.
         if (gfxPrefs::ChildProcessShutdown()) {
           layers::CompositorBridgeChild::ShutDown();
           layers::ImageBridgeChild::ShutDown();
         }
     } else if (XRE_IsParentProcess()) {
-        gfx::VRManagerChild::ShutDown();
         layers::CompositorBridgeChild::ShutDown();
         layers::ImageBridgeChild::ShutDown();
 
diff --git a/gfx/vr/VRDisplayClient.cpp b/gfx/vr/VRDisplayClient.cpp
deleted file mode 100644
index 2f258e987..000000000
--- a/gfx/vr/VRDisplayClient.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <math.h>
-
-#include "prlink.h"
-#include "prmem.h"
-#include "prenv.h"
-#include "gfxPrefs.h"
-#include "nsString.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/Unused.h"
-#include "nsServiceManagerUtils.h"
-#include "nsIScreenManager.h"
-
-#ifdef XP_WIN
-#include "../layers/d3d11/CompositorD3D11.h"
-#endif
-
-#include "VRDisplayClient.h"
-#include "VRDisplayPresentation.h"
-#include "VRManagerChild.h"
-#include "VRLayerChild.h"
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-
-VRDisplayClient::VRDisplayClient(const VRDisplayInfo& aDisplayInfo)
-  : mDisplayInfo(aDisplayInfo)
-  , bLastEventWasPresenting(false)
-  , mPresentationCount(0)
-{
-  MOZ_COUNT_CTOR(VRDisplayClient);
-}
-
-VRDisplayClient::~VRDisplayClient() {
-  MOZ_COUNT_DTOR(VRDisplayClient);
-}
-
-void
-VRDisplayClient::UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo)
-{
-  mDisplayInfo = aDisplayInfo;
-}
-
-already_AddRefed<VRDisplayPresentation>
-VRDisplayClient::BeginPresentation(const nsTArray<mozilla::dom::VRLayer>& aLayers)
-{
-  ++mPresentationCount;
-  RefPtr<VRDisplayPresentation> presentation = new VRDisplayPresentation(this, aLayers);
-  return presentation.forget();
-}
-
-void
-VRDisplayClient::PresentationDestroyed()
-{
-  --mPresentationCount;
-}
-
-void
-VRDisplayClient::ZeroSensor()
-{
-  VRManagerChild *vm = VRManagerChild::Get();
-  vm->SendResetSensor(mDisplayInfo.mDisplayID);
-}
-
-VRHMDSensorState
-VRDisplayClient::GetSensorState()
-{
-  VRHMDSensorState sensorState;
-  VRManagerChild *vm = VRManagerChild::Get();
-  Unused << vm->SendGetSensorState(mDisplayInfo.mDisplayID, &sensorState);
-  return sensorState;
-}
-
-VRHMDSensorState
-VRDisplayClient::GetImmediateSensorState()
-{
-  VRHMDSensorState sensorState;
-
-  VRManagerChild *vm = VRManagerChild::Get();
-  Unused << vm->SendGetImmediateSensorState(mDisplayInfo.mDisplayID, &sensorState);
-  return sensorState;
-}
-
-const double kVRDisplayRAFMaxDuration = 32; // milliseconds
-
-void
-VRDisplayClient::NotifyVsync()
-{
-  VRManagerChild *vm = VRManagerChild::Get();
-
-  bool isPresenting = GetIsPresenting();
-
-  bool bShouldCallback = !isPresenting;
-  if (mLastVSyncTime.IsNull()) {
-    bShouldCallback = true;
-  } else {
-    TimeDuration duration = TimeStamp::Now() - mLastVSyncTime;
-    if (duration.ToMilliseconds() > kVRDisplayRAFMaxDuration) {
-      bShouldCallback = true;
-    }
-  }
-
-  if (bShouldCallback) {
-    vm->RunFrameRequestCallbacks();
-    mLastVSyncTime = TimeStamp::Now();
-  }
-
-  // Check if we need to trigger onVRDisplayPresentChange event
-  if (bLastEventWasPresenting != isPresenting) {
-    bLastEventWasPresenting = isPresenting;
-    vm->FireDOMVRDisplayPresentChangeEvent();
-  }
-}
-
-void
-VRDisplayClient::NotifyVRVsync()
-{
-  VRManagerChild *vm = VRManagerChild::Get();
-  vm->RunFrameRequestCallbacks();
-  mLastVSyncTime = TimeStamp::Now();
-}
-
-bool
-VRDisplayClient::GetIsConnected() const
-{
-  return mDisplayInfo.GetIsConnected();
-}
-
-bool
-VRDisplayClient::GetIsPresenting() const
-{
-  return mDisplayInfo.GetIsPresenting();
-}
-
-void
-VRDisplayClient::NotifyDisconnected()
-{
-  mDisplayInfo.mIsConnected = false;
-}
diff --git a/gfx/vr/VRDisplayClient.h b/gfx/vr/VRDisplayClient.h
deleted file mode 100644
index 0cdd24682..000000000
--- a/gfx/vr/VRDisplayClient.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_DISPLAY_CLIENT_H
-#define GFX_VR_DISPLAY_CLIENT_H
-
-#include "nsIScreen.h"
-#include "nsCOMPtr.h"
-#include "mozilla/RefPtr.h"
-#include "mozilla/dom/VRDisplayBinding.h"
-
-#include "gfxVR.h"
-
-namespace mozilla {
-namespace gfx {
-class VRDisplayPresentation;
-class VRManagerChild;
-
-class VRDisplayClient
-{
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayClient)
-
-  explicit VRDisplayClient(const VRDisplayInfo& aDisplayInfo);
-
-  void UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo);
-
-  const VRDisplayInfo& GetDisplayInfo() const { return mDisplayInfo; }
-  virtual VRHMDSensorState GetSensorState();
-  virtual VRHMDSensorState GetImmediateSensorState();
-
-  virtual void ZeroSensor();
-
-  already_AddRefed<VRDisplayPresentation> BeginPresentation(const nsTArray<dom::VRLayer>& aLayers);
-  void PresentationDestroyed();
-
-  void NotifyVsync();
-  void NotifyVRVsync();
-
-  bool GetIsConnected() const;
-  bool GetIsPresenting() const;
-
-  void NotifyDisconnected();
-
-protected:
-  virtual ~VRDisplayClient();
-
-  VRDisplayInfo mDisplayInfo;
-
-  bool bLastEventWasPresenting;
-
-  TimeStamp mLastVSyncTime;
-  int mPresentationCount;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_DISPLAY_CLIENT_H */
diff --git a/gfx/vr/VRDisplayHost.cpp b/gfx/vr/VRDisplayHost.cpp
deleted file mode 100644
index fd2fd6d6a..000000000
--- a/gfx/vr/VRDisplayHost.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VRDisplayHost.h"
-#include "gfxVR.h"
-
-#if defined(XP_WIN)
-
-#include <d3d11.h>
-#include "gfxWindowsPlatform.h"
-#include "../layers/d3d11/CompositorD3D11.h"
-#include "mozilla/layers/TextureD3D11.h"
-
-#endif
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::layers;
-
-VRDisplayHost::VRDisplayHost(VRDeviceType aType)
-  : mInputFrameID(0)
-{
-  MOZ_COUNT_CTOR(VRDisplayHost);
-  mDisplayInfo.mType = aType;
-  mDisplayInfo.mDisplayID = VRDisplayManager::AllocateDisplayID();
-  mDisplayInfo.mIsPresenting = false;
-
-  for (int i = 0; i < kMaxLatencyFrames; i++) {
-    mLastSensorState[i].Clear();
-  }
-}
-
-VRDisplayHost::~VRDisplayHost()
-{
-  MOZ_COUNT_DTOR(VRDisplayHost);
-}
-
-void
-VRDisplayHost::AddLayer(VRLayerParent *aLayer)
-{
-  mLayers.AppendElement(aLayer);
-  if (mLayers.Length() == 1) {
-    StartPresentation();
-  }
-  mDisplayInfo.mIsPresenting = mLayers.Length() > 0;
-
-  // Ensure that the content process receives the change immediately
-  VRManager* vm = VRManager::Get();
-  vm->RefreshVRDisplays();
-}
-
-void
-VRDisplayHost::RemoveLayer(VRLayerParent *aLayer)
-{
-  mLayers.RemoveElement(aLayer);
-  if (mLayers.Length() == 0) {
-    StopPresentation();
-  }
-  mDisplayInfo.mIsPresenting = mLayers.Length() > 0;
-
-  // Ensure that the content process receives the change immediately
-  VRManager* vm = VRManager::Get();
-  vm->RefreshVRDisplays();
-}
-
-#if defined(XP_WIN)
-
-void
-VRDisplayHost::SubmitFrame(VRLayerParent* aLayer, const int32_t& aInputFrameID,
-  PTextureParent* aTexture, const gfx::Rect& aLeftEyeRect,
-  const gfx::Rect& aRightEyeRect)
-{
-  // aInputFrameID is no longer controlled by content with the WebVR 1.1 API
-  // update; however, we will later use this code to enable asynchronous
-  // submission of multiple layers to be composited.  This will enable
-  // us to build browser UX that remains responsive even when content does
-  // not consistently submit frames.
-
-  int32_t inputFrameID = aInputFrameID;
-  if (inputFrameID == 0) {
-    inputFrameID = mInputFrameID;
-  }
-  if (inputFrameID < 0) {
-    // Sanity check to prevent invalid memory access on builds with assertions
-    // disabled.
-    inputFrameID = 0;
-  }
-
-  VRHMDSensorState sensorState = mLastSensorState[inputFrameID % kMaxLatencyFrames];
-  // It is possible to get a cache miss on mLastSensorState if latency is
-  // longer than kMaxLatencyFrames.  An optimization would be to find a frame
-  // that is closer than the one selected with the modulus.
-  // If we hit this; however, latency is already so high that the site is
-  // un-viewable and a more accurate pose prediction is not likely to
-  // compensate.
-
-  TextureHost* th = TextureHost::AsTextureHost(aTexture);
-  // WebVR doesn't use the compositor to compose the frame, so use
-  // AutoLockTextureHostWithoutCompositor here.
-  AutoLockTextureHostWithoutCompositor autoLock(th);
-  if (autoLock.Failed()) {
-    NS_WARNING("Failed to lock the VR layer texture");
-    return;
-  }
-
-  CompositableTextureSourceRef source;
-  if (!th->BindTextureSource(source)) {
-    NS_WARNING("The TextureHost was successfully locked but can't provide a TextureSource");
-    return;
-  }
-  MOZ_ASSERT(source);
-
-  IntSize texSize = source->GetSize();
-
-  TextureSourceD3D11* sourceD3D11 = source->AsSourceD3D11();
-  if (!sourceD3D11) {
-    NS_WARNING("WebVR support currently only implemented for D3D11");
-    return;
-  }
-
-  SubmitFrame(sourceD3D11, texSize, sensorState, aLeftEyeRect, aRightEyeRect);
-}
-
-#else
-
-void
-VRDisplayHost::SubmitFrame(VRLayerParent* aLayer, const int32_t& aInputFrameID,
-  PTextureParent* aTexture, const gfx::Rect& aLeftEyeRect,
-  const gfx::Rect& aRightEyeRect)
-{
-  NS_WARNING("WebVR only supported in Windows.");
-}
-
-#endif
-
-bool
-VRDisplayHost::CheckClearDisplayInfoDirty()
-{
-  if (mDisplayInfo == mLastUpdateDisplayInfo) {
-    return false;
-  }
-  mLastUpdateDisplayInfo = mDisplayInfo;
-  return true;
-}
-
-VRControllerHost::VRControllerHost(VRDeviceType aType)
-{
-  MOZ_COUNT_CTOR(VRControllerHost);
-  mControllerInfo.mType = aType;
-  mControllerInfo.mControllerID = VRDisplayManager::AllocateDisplayID();
-}
-
-VRControllerHost::~VRControllerHost()
-{
-  MOZ_COUNT_DTOR(VRControllerHost);
-}
-
-const VRControllerInfo&
-VRControllerHost::GetControllerInfo() const
-{
-  return mControllerInfo;
-}
-
-void
-VRControllerHost::SetIndex(uint32_t aIndex)
-{
-  mIndex = aIndex;
-}
-
-uint32_t
-VRControllerHost::GetIndex()
-{
-  return mIndex;
-}
-
-void
-VRControllerHost::SetButtonPressed(uint64_t aBit)
-{
-  mButtonPressed = aBit;
-}
-
-uint64_t
-VRControllerHost::GetButtonPressed()
-{
-  return mButtonPressed;
-}
-
-void
-VRControllerHost::SetPose(const dom::GamepadPoseState& aPose)
-{
-  mPose = aPose;
-}
-
-const dom::GamepadPoseState&
-VRControllerHost::GetPose()
-{
-  return mPose;
-}
-
diff --git a/gfx/vr/VRDisplayHost.h b/gfx/vr/VRDisplayHost.h
deleted file mode 100644
index 0e04e4fd2..000000000
--- a/gfx/vr/VRDisplayHost.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_DISPLAY_HOST_H
-#define GFX_VR_DISPLAY_HOST_H
-
-#include "gfxVR.h"
-#include "nsTArray.h"
-#include "nsString.h"
-#include "nsCOMPtr.h"
-#include "mozilla/RefPtr.h"
-#include "mozilla/gfx/2D.h"
-#include "mozilla/Atomics.h"
-#include "mozilla/EnumeratedArray.h"
-#include "mozilla/TimeStamp.h"
-#include "mozilla/TypedEnumBits.h"
-#include "mozilla/dom/GamepadPoseState.h"
-
-namespace mozilla {
-namespace layers {
-class PTextureParent;
-#if defined(XP_WIN)
-class TextureSourceD3D11;
-#endif
-} // namespace layers
-namespace gfx {
-class VRLayerParent;
-
-class VRDisplayHost {
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayHost)
-
-  const VRDisplayInfo& GetDisplayInfo() const { return mDisplayInfo; }
-
-  void AddLayer(VRLayerParent* aLayer);
-  void RemoveLayer(VRLayerParent* aLayer);
-
-  virtual VRHMDSensorState GetSensorState() = 0;
-  virtual VRHMDSensorState GetImmediateSensorState() = 0;
-  virtual void ZeroSensor() = 0;
-  virtual void StartPresentation() = 0;
-  virtual void StopPresentation() = 0;
-  virtual void NotifyVSync() { };
-
-  void SubmitFrame(VRLayerParent* aLayer,
-                   const int32_t& aInputFrameID,
-                   mozilla::layers::PTextureParent* aTexture,
-                   const gfx::Rect& aLeftEyeRect,
-                   const gfx::Rect& aRightEyeRect);
-
-  bool CheckClearDisplayInfoDirty();
-
-protected:
-  explicit VRDisplayHost(VRDeviceType aType);
-  virtual ~VRDisplayHost();
-
-#if defined(XP_WIN)
-  virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
-                           const IntSize& aSize,
-                           const VRHMDSensorState& aSensorState,
-                           const gfx::Rect& aLeftEyeRect,
-                           const gfx::Rect& aRightEyeRect) = 0;
-#endif
-
-  VRDisplayInfo mDisplayInfo;
-
-  nsTArray<RefPtr<VRLayerParent>> mLayers;
-  // Weak reference to mLayers entries are cleared in VRLayerParent destructor
-
-  // The maximum number of frames of latency that we would expect before we
-  // should give up applying pose prediction.
-  // If latency is greater than one second, then the experience is not likely
-  // to be corrected by pose prediction.  Setting this value too
-  // high may result in unnecessary memory allocation.
-  // As the current fastest refresh rate is 90hz, 100 is selected as a
-  // conservative value.
-  static const int kMaxLatencyFrames = 100;
-  VRHMDSensorState mLastSensorState[kMaxLatencyFrames];
-  int32_t mInputFrameID;
-
-private:
-  VRDisplayInfo mLastUpdateDisplayInfo;
-};
-
-class VRControllerHost {
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRControllerHost)
-
-  const VRControllerInfo& GetControllerInfo() const;
-  void SetIndex(uint32_t aIndex);
-  uint32_t GetIndex();
-  void SetButtonPressed(uint64_t aBit);
-  uint64_t GetButtonPressed();
-  void SetPose(const dom::GamepadPoseState& aPose);
-  const dom::GamepadPoseState& GetPose();
-
-protected:
-  explicit VRControllerHost(VRDeviceType aType);
-  virtual ~VRControllerHost();
-
-  VRControllerInfo mControllerInfo;
-  // The controller index in VRControllerManager.
-  uint32_t mIndex;
-  // The current button pressed bit of button mask.
-  uint64_t mButtonPressed;
-  dom::GamepadPoseState mPose;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_DISPLAY_HOST_H */
diff --git a/gfx/vr/VRDisplayPresentation.cpp b/gfx/vr/VRDisplayPresentation.cpp
deleted file mode 100644
index ba528ae7c..000000000
--- a/gfx/vr/VRDisplayPresentation.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VRDisplayPresentation.h"
-
-#include "mozilla/Unused.h"
-#include "VRDisplayClient.h"
-#include "VRLayerChild.h"
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-
-VRDisplayPresentation::VRDisplayPresentation(VRDisplayClient *aDisplayClient,
-                                             const nsTArray<mozilla::dom::VRLayer>& aLayers)
-  : mDisplayClient(aDisplayClient)
-  , mDOMLayers(aLayers)
-{
-  CreateLayers();
-}
-
-void
-VRDisplayPresentation::CreateLayers()
-{
-  if (mLayers.Length()) {
-    return;
-  }
-
-  for (dom::VRLayer& layer : mDOMLayers) {
-    dom::HTMLCanvasElement* canvasElement = layer.mSource;
-    if (!canvasElement) {
-      /// XXX In the future we will support WebVR in WebWorkers here
-      continue;
-    }
-
-    Rect leftBounds(0.0, 0.0, 0.5, 1.0);
-    if (layer.mLeftBounds.Length() == 4) {
-      leftBounds.x = layer.mLeftBounds[0];
-      leftBounds.y = layer.mLeftBounds[1];
-      leftBounds.width = layer.mLeftBounds[2];
-      leftBounds.height = layer.mLeftBounds[3];
-    } else if (layer.mLeftBounds.Length() != 0) {
-      /**
-       * We ignore layers with an incorrect number of values.
-       * In the future, VRDisplay.requestPresent may throw in
-       * this case.  See https://github.com/w3c/webvr/issues/71
-       */
-      continue;
-    }
-
-    Rect rightBounds(0.5, 0.0, 0.5, 1.0);
-    if (layer.mRightBounds.Length() == 4) {
-      rightBounds.x = layer.mRightBounds[0];
-      rightBounds.y = layer.mRightBounds[1];
-      rightBounds.width = layer.mRightBounds[2];
-      rightBounds.height = layer.mRightBounds[3];
-    } else if (layer.mRightBounds.Length() != 0) {
-      /**
-       * We ignore layers with an incorrect number of values.
-       * In the future, VRDisplay.requestPresent may throw in
-       * this case.  See https://github.com/w3c/webvr/issues/71
-       */
-      continue;
-    }
-
-    VRManagerChild *manager = VRManagerChild::Get();
-    if (!manager) {
-      NS_WARNING("VRManagerChild::Get returned null!");
-      continue;
-    }
-
-    RefPtr<VRLayerChild> vrLayer = static_cast<VRLayerChild*>(manager->CreateVRLayer(mDisplayClient->GetDisplayInfo().GetDisplayID(), leftBounds, rightBounds));
-    if (!vrLayer) {
-      NS_WARNING("CreateVRLayer returned null!");
-      continue;
-    }
-
-    vrLayer->Initialize(canvasElement);
-
-    mLayers.AppendElement(vrLayer);
-  }
-}
-
-void
-VRDisplayPresentation::DestroyLayers()
-{
-  for (VRLayerChild* layer : mLayers) {
-    Unused << layer->SendDestroy();
-  }
-  mLayers.Clear();
-}
-
-void
-VRDisplayPresentation::GetDOMLayers(nsTArray<dom::VRLayer>& result)
-{
-  result = mDOMLayers;
-}
-
-VRDisplayPresentation::~VRDisplayPresentation()
-{
-  DestroyLayers();
-  mDisplayClient->PresentationDestroyed();
-}
-
-void VRDisplayPresentation::SubmitFrame()
-{
-  for (VRLayerChild *layer : mLayers) {
-    layer->SubmitFrame();
-    break; // Currently only one layer supported, submit only the first
-  }
-}
diff --git a/gfx/vr/VRDisplayPresentation.h b/gfx/vr/VRDisplayPresentation.h
deleted file mode 100644
index 28103d8f5..000000000
--- a/gfx/vr/VRDisplayPresentation.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_DISPLAY_PRESENTATION_H
-#define GFX_VR_DISPLAY_PRESENTATION_H
-
-#include "mozilla/RefPtr.h"
-#include "mozilla/dom/VRDisplayBinding.h"
-
-namespace mozilla {
-namespace gfx {
-class VRDisplayClient;
-class VRLayerChild;
-
-class VRDisplayPresentation final
-{
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayPresentation)
-
-public:
-  VRDisplayPresentation(VRDisplayClient *aDisplayClient, const nsTArray<dom::VRLayer>& aLayers);
-  void SubmitFrame();
-  void GetDOMLayers(nsTArray<dom::VRLayer>& result);
-
-private:
-  ~VRDisplayPresentation();
-  void CreateLayers();
-  void DestroyLayers();
-
-  RefPtr<VRDisplayClient> mDisplayClient;
-  nsTArray<dom::VRLayer> mDOMLayers;
-  nsTArray<RefPtr<VRLayerChild>> mLayers;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_DISPLAY_PRESENTAITON_H */
diff --git a/gfx/vr/VRManager.cpp b/gfx/vr/VRManager.cpp
deleted file mode 100644
index 672e9e3a1..000000000
--- a/gfx/vr/VRManager.cpp
+++ /dev/null
@@ -1,393 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-
-#include "VRManager.h"
-#include "VRManagerParent.h"
-#include "gfxVR.h"
-#include "gfxVROpenVR.h"
-#include "mozilla/ClearOnShutdown.h"
-#include "mozilla/dom/VRDisplay.h"
-#include "mozilla/dom/GamepadEventTypes.h"
-#include "mozilla/layers/TextureHost.h"
-#include "mozilla/Unused.h"
-
-#include "gfxPrefs.h"
-#include "gfxVR.h"
-#if defined(XP_WIN)
-#include "gfxVROculus.h"
-#endif
-#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_LINUX)
-#include "gfxVROSVR.h"
-#endif
-#include "ipc/VRLayerParent.h"
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::layers;
-using namespace mozilla::gl;
-
-namespace mozilla {
-namespace gfx {
-
-static StaticRefPtr<VRManager> sVRManagerSingleton;
-
-/*static*/ void
-VRManager::ManagerInit()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (sVRManagerSingleton == nullptr) {
-    sVRManagerSingleton = new VRManager();
-    ClearOnShutdown(&sVRManagerSingleton);
-  }
-}
-
-VRManager::VRManager()
-  : mInitialized(false)
-{
-  MOZ_COUNT_CTOR(VRManager);
-  MOZ_ASSERT(sVRManagerSingleton == nullptr);
-
-  RefPtr<VRDisplayManager> mgr;
-  RefPtr<VRControllerManager> controllerMgr;
-
-  /**
-   * We must add the VRDisplayManager's to mManagers in a careful order to
-   * ensure that we don't detect the same VRDisplay from multiple API's.
-   *
-   * Oculus comes first, as it will only enumerate Oculus HMD's and is the
-   * native interface for Oculus HMD's.
-   *
-   * OpenvR comes second, as it is the native interface for HTC Vive
-   * which is the most common HMD at this time.
-   *
-   * OSVR will be used if Oculus SDK and OpenVR don't detect any HMDS,
-   * to support everyone else.
-   */
-
-#if defined(XP_WIN)
-  // The Oculus runtime is supported only on Windows
-  mgr = VRDisplayManagerOculus::Create();
-  if (mgr) {
-    mManagers.AppendElement(mgr);
-  }
-#endif
-
-#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_LINUX)
-  // OpenVR is cross platform compatible
-  mgr = VRDisplayManagerOpenVR::Create();
-  if (mgr) {
-    mManagers.AppendElement(mgr);
-  }
-
-  controllerMgr = VRControllerManagerOpenVR::Create();
-  if (mgr) {
-    mControllerManagers.AppendElement(controllerMgr);
-  }
-
-  // OSVR is cross platform compatible
-  mgr = VRDisplayManagerOSVR::Create();
-  if (mgr) {
-      mManagers.AppendElement(mgr);
-  }
-#endif
-  // Enable gamepad extensions while VR is enabled.
-  if (gfxPrefs::VREnabled()) {
-    Preferences::SetBool("dom.gamepad.extensions.enabled", true);
-  }
-}
-
-VRManager::~VRManager()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(!mInitialized);
-  MOZ_COUNT_DTOR(VRManager);
-}
-
-void
-VRManager::Destroy()
-{
-  mVRDisplays.Clear();
-  for (uint32_t i = 0; i < mManagers.Length(); ++i) {
-    mManagers[i]->Destroy();
-  }
-
-  mVRControllers.Clear();
-  for (uint32_t i = 0; i < mControllerManagers.Length(); ++i) {
-    mControllerManagers[i]->Destroy();
-  }
-  mInitialized = false;
-}
-
-void
-VRManager::Init()
-{
-  for (uint32_t i = 0; i < mManagers.Length(); ++i) {
-    mManagers[i]->Init();
-  }
-
-  for (uint32_t i = 0; i < mControllerManagers.Length(); ++i) {
-    mControllerManagers[i]->Init();
-  }
-  mInitialized = true;
-}
-
-/* static */VRManager*
-VRManager::Get()
-{
-  MOZ_ASSERT(sVRManagerSingleton != nullptr);
-
-  return sVRManagerSingleton;
-}
-
-void
-VRManager::AddVRManagerParent(VRManagerParent* aVRManagerParent)
-{
-  if (mVRManagerParents.IsEmpty()) {
-    Init();
-  }
-  mVRManagerParents.PutEntry(aVRManagerParent);
-}
-
-void
-VRManager::RemoveVRManagerParent(VRManagerParent* aVRManagerParent)
-{
-  mVRManagerParents.RemoveEntry(aVRManagerParent);
-  if (mVRManagerParents.IsEmpty()) {
-    Destroy();
-  }
-}
-
-void
-VRManager::NotifyVsync(const TimeStamp& aVsyncTimestamp)
-{
-  const double kVRDisplayRefreshMaxDuration = 5000; // milliseconds
-
-  bool bHaveEventListener = false;
-
-  for (auto iter = mVRManagerParents.Iter(); !iter.Done(); iter.Next()) {
-    VRManagerParent *vmp = iter.Get()->GetKey();
-    if (mVRDisplays.Count()) {
-      Unused << vmp->SendNotifyVSync();
-    }
-    bHaveEventListener |= vmp->HaveEventListener();
-  }
-
-  for (auto iter = mVRDisplays.Iter(); !iter.Done(); iter.Next()) {
-    gfx::VRDisplayHost* display = iter.UserData();
-    display->NotifyVSync();
-  }
-
-  if (bHaveEventListener) {
-    for (uint32_t i = 0; i < mControllerManagers.Length(); ++i) {
-      mControllerManagers[i]->HandleInput();
-    }
-    // If content has set an EventHandler to be notified of VR display events
-    // we must continually refresh the VR display enumeration to check
-    // for events that we must fire such as Window.onvrdisplayconnect
-    // Note that enumeration itself may activate display hardware, such
-    // as Oculus, so we only do this when we know we are displaying content
-    // that is looking for VR displays.
-    if (mLastRefreshTime.IsNull()) {
-      // This is the first vsync, must refresh VR displays
-      RefreshVRDisplays();
-      RefreshVRControllers();
-      mLastRefreshTime = TimeStamp::Now();
-    } else {
-      // We don't have to do this every frame, so check if we
-      // have refreshed recently.
-      TimeDuration duration = TimeStamp::Now() - mLastRefreshTime;
-      if (duration.ToMilliseconds() > kVRDisplayRefreshMaxDuration) {
-        RefreshVRDisplays();
-        RefreshVRControllers();
-        mLastRefreshTime = TimeStamp::Now();
-      }
-    }
-  }
-}
-
-void
-VRManager::NotifyVRVsync(const uint32_t& aDisplayID)
-{
-  for (auto iter = mVRManagerParents.Iter(); !iter.Done(); iter.Next()) {
-    Unused << iter.Get()->GetKey()->SendNotifyVRVSync(aDisplayID);
-  }
-}
-
-void
-VRManager::RefreshVRDisplays(bool aMustDispatch)
-{
-  nsTArray<RefPtr<gfx::VRDisplayHost> > displays;
-
-  /** We don't wish to enumerate the same display from multiple managers,
-   * so stop as soon as we get a display.
-   * It is still possible to get multiple displays from a single manager,
-   * but do not wish to mix-and-match for risk of reporting a duplicate.
-   *
-   * XXX - Perhaps there will be a better way to detect duplicate displays
-   *       in the future.
-   */
-  for (uint32_t i = 0; i < mManagers.Length() && displays.Length() == 0; ++i) {
-    mManagers[i]->GetHMDs(displays);
-  }
-
-  bool displayInfoChanged = false;
-
-  if (displays.Length() != mVRDisplays.Count()) {
-    // Catch cases where a VR display has been removed
-    displayInfoChanged = true;
-  }
-
-  for (const auto& display: displays) {
-    if (!GetDisplay(display->GetDisplayInfo().GetDisplayID())) {
-      // This is a new display
-      displayInfoChanged = true;
-      break;
-    }
-
-    if (display->CheckClearDisplayInfoDirty()) {
-      // This display's info has changed
-      displayInfoChanged = true;
-      break;
-    }
-  }
-
-  if (displayInfoChanged) {
-    mVRDisplays.Clear();
-    for (const auto& display: displays) {
-      mVRDisplays.Put(display->GetDisplayInfo().GetDisplayID(), display);
-    }
-  }
-
-  if (displayInfoChanged || aMustDispatch) {
-    DispatchVRDisplayInfoUpdate();
-  }
-}
-
-void
-VRManager::DispatchVRDisplayInfoUpdate()
-{
-  nsTArray<VRDisplayInfo> update;
-  GetVRDisplayInfo(update);
-
-  for (auto iter = mVRManagerParents.Iter(); !iter.Done(); iter.Next()) {
-    Unused << iter.Get()->GetKey()->SendUpdateDisplayInfo(update);
-  }
-}
-
-
-/**
- * Get any VR displays that have already been enumerated without
- * activating any new devices.
- */
-void
-VRManager::GetVRDisplayInfo(nsTArray<VRDisplayInfo>& aDisplayInfo)
-{
-  aDisplayInfo.Clear();
-  for (auto iter = mVRDisplays.Iter(); !iter.Done(); iter.Next()) {
-    gfx::VRDisplayHost* display = iter.UserData();
-    aDisplayInfo.AppendElement(VRDisplayInfo(display->GetDisplayInfo()));
-  }
-}
-
-RefPtr<gfx::VRDisplayHost>
-VRManager::GetDisplay(const uint32_t& aDisplayID)
-{
-  RefPtr<gfx::VRDisplayHost> display;
-  if (mVRDisplays.Get(aDisplayID, getter_AddRefs(display))) {
-    return display;
-  }
-  return nullptr;
-}
-
-void
-VRManager::SubmitFrame(VRLayerParent* aLayer, layers::PTextureParent* aTexture,
-                       const gfx::Rect& aLeftEyeRect,
-                       const gfx::Rect& aRightEyeRect)
-{
-  TextureHost* th = TextureHost::AsTextureHost(aTexture);
-  mLastFrame = th;
-  RefPtr<VRDisplayHost> display = GetDisplay(aLayer->GetDisplayID());
-  if (display) {
-    display->SubmitFrame(aLayer, 0, aTexture, aLeftEyeRect, aRightEyeRect);
-  }
-}
-
-RefPtr<gfx::VRControllerHost>
-VRManager::GetController(const uint32_t& aControllerID)
-{
-  RefPtr<gfx::VRControllerHost> controller;
-  if (mVRControllers.Get(aControllerID, getter_AddRefs(controller))) {
-    return controller;
-  }
-  return nullptr;
-}
-
-void
-VRManager::GetVRControllerInfo(nsTArray<VRControllerInfo>& aControllerInfo)
-{
-  aControllerInfo.Clear();
-  for (auto iter = mVRControllers.Iter(); !iter.Done(); iter.Next()) {
-    gfx::VRControllerHost* controller = iter.UserData();
-    aControllerInfo.AppendElement(VRControllerInfo(controller->GetControllerInfo()));
-  }
-}
-
-void
-VRManager::RefreshVRControllers()
-{
-  nsTArray<RefPtr<gfx::VRControllerHost>> controllers;
-
-  for (uint32_t i = 0; i < mControllerManagers.Length()
-      && controllers.Length() == 0; ++i) {
-    mControllerManagers[i]->GetControllers(controllers);
-  }
-
-  bool controllerInfoChanged = false;
-
-  if (controllers.Length() != mVRControllers.Count()) {
-    // Catch cases where VR controllers has been removed
-    controllerInfoChanged = true;
-  }
-
-  for (const auto& controller : controllers) {
-    if (!GetController(controller->GetControllerInfo().GetControllerID())) {
-      // This is a new controller
-      controllerInfoChanged = true;
-      break;
-    }
-  }
-
-  if (controllerInfoChanged) {
-    mVRControllers.Clear();
-    for (const auto& controller : controllers) {
-      mVRControllers.Put(controller->GetControllerInfo().GetControllerID(),
-                         controller);
-    }
-  }
-}
-
-void
-VRManager::ScanForDevices()
-{
-  for (uint32_t i = 0; i < mControllerManagers.Length(); ++i) {
-    mControllerManagers[i]->ScanForDevices();
-  }
-}
-
-template<class T>
-void
-VRManager::NotifyGamepadChange(const T& aInfo)
-{
-  dom::GamepadChangeEvent e(aInfo);
-
-  for (auto iter = mVRManagerParents.Iter(); !iter.Done(); iter.Next()) {
-    Unused << iter.Get()->GetKey()->SendGamepadUpdate(e);
-  }
-}
-
-} // namespace gfx
-} // namespace mozilla
diff --git a/gfx/vr/VRManager.h b/gfx/vr/VRManager.h
deleted file mode 100644
index b46a3b58f..000000000
--- a/gfx/vr/VRManager.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_MANAGER_H
-#define GFX_VR_MANAGER_H
-
-#include "nsRefPtrHashtable.h"
-#include "nsTArray.h"
-#include "nsTHashtable.h"
-#include "nsDataHashtable.h"
-#include "mozilla/TimeStamp.h"
-#include "gfxVR.h"
-
-namespace mozilla {
-namespace layers {
-class TextureHost;
-}
-namespace gfx {
-
-class VRLayerParent;
-class VRManagerParent;
-class VRDisplayHost;
-class VRControllerManager;
-
-class VRManager
-{
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(mozilla::gfx::VRManager)
-
-public:
-  static void ManagerInit();
-  static VRManager* Get();
-
-  void AddVRManagerParent(VRManagerParent* aVRManagerParent);
-  void RemoveVRManagerParent(VRManagerParent* aVRManagerParent);
-
-  void NotifyVsync(const TimeStamp& aVsyncTimestamp);
-  void NotifyVRVsync(const uint32_t& aDisplayID);
-  void RefreshVRDisplays(bool aMustDispatch = false);
-  void ScanForDevices();
-  template<class T> void NotifyGamepadChange(const T& aInfo);
-  RefPtr<gfx::VRDisplayHost> GetDisplay(const uint32_t& aDisplayID);
-  void GetVRDisplayInfo(nsTArray<VRDisplayInfo>& aDisplayInfo);
-
-  void SubmitFrame(VRLayerParent* aLayer, layers::PTextureParent* aTexture,
-                   const gfx::Rect& aLeftEyeRect,
-                   const gfx::Rect& aRightEyeRect);
-  RefPtr<gfx::VRControllerHost> GetController(const uint32_t& aControllerID);
-  void GetVRControllerInfo(nsTArray<VRControllerInfo>& aControllerInfo);
-
-protected:
-  VRManager();
-  ~VRManager();
-
-private:
-  RefPtr<layers::TextureHost> mLastFrame;
-
-  void Init();
-  void Destroy();
-
-  void DispatchVRDisplayInfoUpdate();
-  void RefreshVRControllers();
-
-  typedef nsTHashtable<nsRefPtrHashKey<VRManagerParent>> VRManagerParentSet;
-  VRManagerParentSet mVRManagerParents;
-
-  typedef nsTArray<RefPtr<VRDisplayManager>> VRDisplayManagerArray;
-  VRDisplayManagerArray mManagers;
-
-  typedef nsTArray<RefPtr<VRControllerManager>> VRControllerManagerArray;
-  VRControllerManagerArray mControllerManagers;
-
-  typedef nsRefPtrHashtable<nsUint32HashKey, gfx::VRDisplayHost> VRDisplayHostHashMap;
-  VRDisplayHostHashMap mVRDisplays;
-
-  typedef nsRefPtrHashtable<nsUint32HashKey, gfx::VRControllerHost> VRControllerHostHashMap;
-  VRControllerHostHashMap mVRControllers;
-
-  Atomic<bool> mInitialized;
-
-  TimeStamp mLastRefreshTime;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif // GFX_VR_MANAGER_H
diff --git a/gfx/vr/gfxVR.cpp b/gfx/vr/gfxVR.cpp
deleted file mode 100644
index c0babb4f8..000000000
--- a/gfx/vr/gfxVR.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <math.h>
-
-#include "gfxVR.h"
-#ifdef MOZ_GAMEPAD
-#include "mozilla/dom/GamepadEventTypes.h"
-#include "mozilla/dom/GamepadBinding.h"
-#endif
-
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-
-Atomic<uint32_t> VRDisplayManager::sDisplayBase(0);
-Atomic<uint32_t> VRControllerManager::sControllerBase(0);
-
-/* static */ uint32_t
-VRDisplayManager::AllocateDisplayID()
-{
-  return ++sDisplayBase;
-}
-
-Matrix4x4
-VRFieldOfView::ConstructProjectionMatrix(float zNear, float zFar,
-                                         bool rightHanded) const
-{
-  float upTan = tan(upDegrees * M_PI / 180.0);
-  float downTan = tan(downDegrees * M_PI / 180.0);
-  float leftTan = tan(leftDegrees * M_PI / 180.0);
-  float rightTan = tan(rightDegrees * M_PI / 180.0);
-
-  float handednessScale = rightHanded ? -1.0 : 1.0;
-
-  float pxscale = 2.0f / (leftTan + rightTan);
-  float pxoffset = (leftTan - rightTan) * pxscale * 0.5;
-  float pyscale = 2.0f / (upTan + downTan);
-  float pyoffset = (upTan - downTan) * pyscale * 0.5;
-
-  Matrix4x4 mobj;
-  float *m = &mobj._11;
-
-  m[0*4+0] = pxscale;
-  m[2*4+0] = pxoffset * handednessScale;
-
-  m[1*4+1] = pyscale;
-  m[2*4+1] = -pyoffset * handednessScale;
-
-  m[2*4+2] = zFar / (zNear - zFar) * -handednessScale;
-  m[3*4+2] = (zFar * zNear) / (zNear - zFar);
-
-  m[2*4+3] = handednessScale;
-  m[3*4+3] = 0.0f;
-
-  return mobj;
-}
-
-/* static */ uint32_t
-VRControllerManager::AllocateControllerID()
-{
-  return ++sControllerBase;
-}
-
-void
-VRControllerManager::AddGamepad(const char* aID, uint32_t aMapping,
-                                uint32_t aNumButtons, uint32_t aNumAxes)
-{
-  dom::GamepadAdded a(NS_ConvertUTF8toUTF16(nsDependentCString(aID)), mControllerCount,
-                     aMapping, dom::GamepadServiceType::VR, aNumButtons,
-                     aNumAxes);
-
-  VRManager* vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyGamepadChange<dom::GamepadAdded>(a);
-}
-
-void
-VRControllerManager::RemoveGamepad(uint32_t aIndex)
-{
-  dom::GamepadRemoved a(aIndex, dom::GamepadServiceType::VR);
-
-  VRManager* vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyGamepadChange<dom::GamepadRemoved>(a);
-}
-
-void
-VRControllerManager::NewButtonEvent(uint32_t aIndex, uint32_t aButton,
-                                    bool aPressed)
-{
-  dom::GamepadButtonInformation a(aIndex, dom::GamepadServiceType::VR,
-                                  aButton, aPressed, aPressed ? 1.0L : 0.0L);
-
-  VRManager* vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyGamepadChange<dom::GamepadButtonInformation>(a);
-}
-
-void
-VRControllerManager::NewAxisMove(uint32_t aIndex, uint32_t aAxis,
-                                 double aValue)
-{
-  dom::GamepadAxisInformation a(aIndex, dom::GamepadServiceType::VR,
-                                aAxis, aValue);
-
-  VRManager* vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyGamepadChange<dom::GamepadAxisInformation>(a);
-}
-
-void
-VRControllerManager::NewPoseState(uint32_t aIndex,
-                                  const dom::GamepadPoseState& aPose)
-{
-  dom::GamepadPoseInformation a(aIndex, dom::GamepadServiceType::VR,
-                                aPose);
-
-  VRManager* vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyGamepadChange<dom::GamepadPoseInformation>(a);
-}
diff --git a/gfx/vr/gfxVR.h b/gfx/vr/gfxVR.h
deleted file mode 100644
index b46875741..000000000
--- a/gfx/vr/gfxVR.h
+++ /dev/null
@@ -1,285 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_H
-#define GFX_VR_H
-
-#include "nsTArray.h"
-#include "nsString.h"
-#include "nsCOMPtr.h"
-#include "mozilla/RefPtr.h"
-#include "mozilla/gfx/2D.h"
-#include "mozilla/Atomics.h"
-#include "mozilla/EnumeratedArray.h"
-#include "mozilla/TimeStamp.h"
-#include "mozilla/TypedEnumBits.h"
-
-namespace mozilla {
-namespace layers {
-class PTextureParent;
-}
-namespace dom {
-enum class GamepadMappingType : uint32_t;
-struct GamepadPoseState;
-}
-namespace gfx {
-class VRLayerParent;
-class VRDisplayHost;
-class VRControllerHost;
-
-enum class VRDeviceType : uint16_t {
-  Oculus,
-  OpenVR,
-  OSVR,
-  NumVRDeviceTypes
-};
-
-enum class VRDisplayCapabilityFlags : uint16_t {
-  Cap_None = 0,
-  /**
-   * Cap_Position is set if the VRDisplay is capable of tracking its position.
-   */
-  Cap_Position = 1 << 1,
-  /**
-    * Cap_Orientation is set if the VRDisplay is capable of tracking its orientation.
-    */
-  Cap_Orientation = 1 << 2,
-  /**
-   * Cap_Present is set if the VRDisplay is capable of presenting content to an
-   * HMD or similar device.  Can be used to indicate "magic window" devices that
-   * are capable of 6DoF tracking but for which requestPresent is not meaningful.
-   * If false then calls to requestPresent should always fail, and
-   * getEyeParameters should return null.
-   */
-  Cap_Present = 1 << 3,
-  /**
-   * Cap_External is set if the VRDisplay is separate from the device's
-   * primary display. If presenting VR content will obscure
-   * other content on the device, this should be un-set. When
-   * un-set, the application should not attempt to mirror VR content
-   * or update non-VR UI because that content will not be visible.
-   */
-  Cap_External = 1 << 4,
-  /**
-   * Cap_AngularAcceleration is set if the VRDisplay is capable of tracking its
-   * angular acceleration.
-   */
-  Cap_AngularAcceleration = 1 << 5,
-  /**
-   * Cap_LinearAcceleration is set if the VRDisplay is capable of tracking its
-   * linear acceleration.
-   */
-  Cap_LinearAcceleration = 1 << 6,
-  /**
-   * Cap_StageParameters is set if the VRDisplay is capable of room scale VR
-   * and can report the StageParameters to describe the space.
-   */
-  Cap_StageParameters = 1 << 7,
-  /**
-   * Cap_All used for validity checking during IPC serialization
-   */
-  Cap_All = (1 << 8) - 1
-};
-
-MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(VRDisplayCapabilityFlags)
-
-struct VRFieldOfView {
-  VRFieldOfView() {}
-  VRFieldOfView(double up, double right, double down, double left)
-    : upDegrees(up), rightDegrees(right), downDegrees(down), leftDegrees(left)
-  {}
-
-  void SetFromTanRadians(double up, double right, double down, double left)
-  {
-    upDegrees = atan(up) * 180.0 / M_PI;
-    rightDegrees = atan(right) * 180.0 / M_PI;
-    downDegrees = atan(down) * 180.0 / M_PI;
-    leftDegrees = atan(left) * 180.0 / M_PI;
-  }
-
-  bool operator==(const VRFieldOfView& other) const {
-    return other.upDegrees == upDegrees &&
-           other.downDegrees == downDegrees &&
-           other.rightDegrees == rightDegrees &&
-           other.leftDegrees == leftDegrees;
-  }
-
-  bool operator!=(const VRFieldOfView& other) const {
-    return !(*this == other);
-  }
-
-  bool IsZero() const {
-    return upDegrees == 0.0 ||
-      rightDegrees == 0.0 ||
-      downDegrees == 0.0 ||
-      leftDegrees == 0.0;
-  }
-
-  Matrix4x4 ConstructProjectionMatrix(float zNear, float zFar, bool rightHanded) const;
-
-  double upDegrees;
-  double rightDegrees;
-  double downDegrees;
-  double leftDegrees;
-};
-
-struct VRDisplayInfo
-{
-  VRDeviceType GetType() const { return mType; }
-  uint32_t GetDisplayID() const { return mDisplayID; }
-  const nsCString& GetDisplayName() const { return mDisplayName; }
-  VRDisplayCapabilityFlags GetCapabilities() const { return mCapabilityFlags; }
-
-  const IntSize& SuggestedEyeResolution() const { return mEyeResolution; }
-  const Point3D& GetEyeTranslation(uint32_t whichEye) const { return mEyeTranslation[whichEye]; }
-  const VRFieldOfView& GetEyeFOV(uint32_t whichEye) const { return mEyeFOV[whichEye]; }
-  bool GetIsConnected() const { return mIsConnected; }
-  bool GetIsPresenting() const { return mIsPresenting; }
-  const Size& GetStageSize() const { return mStageSize; }
-  const Matrix4x4& GetSittingToStandingTransform() const { return mSittingToStandingTransform; }
-
-  enum Eye {
-    Eye_Left,
-    Eye_Right,
-    NumEyes
-  };
-
-  uint32_t mDisplayID;
-  VRDeviceType mType;
-  nsCString mDisplayName;
-  VRDisplayCapabilityFlags mCapabilityFlags;
-  VRFieldOfView mEyeFOV[VRDisplayInfo::NumEyes];
-  Point3D mEyeTranslation[VRDisplayInfo::NumEyes];
-  IntSize mEyeResolution;
-  bool mIsConnected;
-  bool mIsPresenting;
-  Size mStageSize;
-  Matrix4x4 mSittingToStandingTransform;
-
-  bool operator==(const VRDisplayInfo& other) const {
-    return mType == other.mType &&
-           mDisplayID == other.mDisplayID &&
-           mDisplayName == other.mDisplayName &&
-           mCapabilityFlags == other.mCapabilityFlags &&
-           mEyeResolution == other.mEyeResolution &&
-           mIsConnected == other.mIsConnected &&
-           mIsPresenting == other.mIsPresenting &&
-           mEyeFOV[0] == other.mEyeFOV[0] &&
-           mEyeFOV[1] == other.mEyeFOV[1] &&
-           mEyeTranslation[0] == other.mEyeTranslation[0] &&
-           mEyeTranslation[1] == other.mEyeTranslation[1] &&
-           mStageSize == other.mStageSize &&
-           mSittingToStandingTransform == other.mSittingToStandingTransform;
-  }
-
-  bool operator!=(const VRDisplayInfo& other) const {
-    return !(*this == other);
-  }
-};
-
-struct VRHMDSensorState {
-  double timestamp;
-  int32_t inputFrameID;
-  VRDisplayCapabilityFlags flags;
-  float orientation[4];
-  float position[3];
-  float angularVelocity[3];
-  float angularAcceleration[3];
-  float linearVelocity[3];
-  float linearAcceleration[3];
-
-  void Clear() {
-    memset(this, 0, sizeof(VRHMDSensorState));
-  }
-};
-
-class VRDisplayManager {
-public:
-  static uint32_t AllocateDisplayID();
-
-protected:
-  static Atomic<uint32_t> sDisplayBase;
-
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayManager)
-
-  virtual bool Init() = 0;
-  virtual void Destroy() = 0;
-  virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult) = 0;
-
-protected:
-  VRDisplayManager() { }
-  virtual ~VRDisplayManager() { }
-};
-
-struct VRControllerInfo
-{
-  VRDeviceType GetType() const { return mType; }
-  uint32_t GetControllerID() const { return mControllerID; }
-  const nsCString& GetControllerName() const { return mControllerName; }
-  uint32_t GetMappingType() const { return mMappingType; }
-  uint32_t GetNumButtons() const { return mNumButtons; }
-  uint32_t GetNumAxes() const { return mNumAxes; }
-
-  uint32_t mControllerID;
-  VRDeviceType mType;
-  nsCString mControllerName;
-  uint32_t mMappingType;
-  uint32_t mNumButtons;
-  uint32_t mNumAxes;
-
-  bool operator==(const VRControllerInfo& other) const {
-  return mType == other.mType &&
-         mControllerID == other.mControllerID &&
-         mControllerName == other.mControllerName &&
-         mMappingType == other.mMappingType &&
-         mNumButtons == other.mNumButtons &&
-         mNumAxes == other.mNumAxes;
-  }
-
-  bool operator!=(const VRControllerInfo& other) const {
-    return !(*this == other);
-  }
-};
-
-class VRControllerManager {
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRControllerManager)
-
-  static uint32_t AllocateControllerID();
-  virtual bool Init() = 0;
-  virtual void Destroy() = 0;
-  virtual void HandleInput() = 0;
-  virtual void GetControllers(nsTArray<RefPtr<VRControllerHost>>& aControllerResult) = 0;
-  virtual void ScanForDevices() = 0;
-  void NewButtonEvent(uint32_t aIndex, uint32_t aButton, bool aPressed);
-  void NewAxisMove(uint32_t aIndex, uint32_t aAxis, double aValue);
-  void NewPoseState(uint32_t aIndex, const dom::GamepadPoseState& aPose);
-  void AddGamepad(const char* aID, uint32_t aMapping,
-                  uint32_t aNumButtons, uint32_t aNumAxes);
-  void RemoveGamepad(uint32_t aIndex);
-
-protected:
-  VRControllerManager() : mInstalled(false), mControllerCount(0) {}
-  virtual ~VRControllerManager() {}
-
-  bool mInstalled;
-  uint32_t mControllerCount;
-  static Atomic<uint32_t> sControllerBase;
-
-private:
-  virtual void HandleButtonPress(uint32_t aControllerIdx,
-                                 uint64_t aButtonPressed) = 0;
-  virtual void HandleAxisMove(uint32_t aControllerIdx, uint32_t aAxis,
-                              float aValue) = 0;
-  virtual void HandlePoseTracking(uint32_t aControllerIdx,
-                                  const dom::GamepadPoseState& aPose,
-                                  VRControllerHost* aController) = 0;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_H */
diff --git a/gfx/vr/gfxVROSVR.cpp b/gfx/vr/gfxVROSVR.cpp
deleted file mode 100644
index 8b275e923..000000000
--- a/gfx/vr/gfxVROSVR.cpp
+++ /dev/null
@@ -1,529 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <math.h>
-
-#include "prlink.h"
-#include "prmem.h"
-#include "prenv.h"
-#include "gfxPrefs.h"
-#include "nsString.h"
-#include "mozilla/Preferences.h"
-
-#include "mozilla/gfx/Quaternion.h"
-
-#ifdef XP_WIN
-#include "../layers/d3d11/CompositorD3D11.h"
-#include "../layers/d3d11/TextureD3D11.h"
-#endif
-
-#include "gfxVROSVR.h"
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-using namespace mozilla::layers;
-using namespace mozilla::gfx;
-using namespace mozilla::gfx::impl;
-
-namespace {
-// need to typedef functions that will be used in the code below
-extern "C" {
-typedef OSVR_ClientContext (*pfn_osvrClientInit)(
-  const char applicationIdentifier[], uint32_t flags);
-typedef OSVR_ReturnCode (*pfn_osvrClientShutdown)(OSVR_ClientContext ctx);
-typedef OSVR_ReturnCode (*pfn_osvrClientUpdate)(OSVR_ClientContext ctx);
-typedef OSVR_ReturnCode (*pfn_osvrClientCheckStatus)(OSVR_ClientContext ctx);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetInterface)(
-  OSVR_ClientContext ctx, const char path[], OSVR_ClientInterface* iface);
-typedef OSVR_ReturnCode (*pfn_osvrClientFreeInterface)(
-  OSVR_ClientContext ctx, OSVR_ClientInterface iface);
-typedef OSVR_ReturnCode (*pfn_osvrGetOrientationState)(
-  OSVR_ClientInterface iface, OSVR_TimeValue* timestamp,
-  OSVR_OrientationState* state);
-typedef OSVR_ReturnCode (*pfn_osvrGetPositionState)(OSVR_ClientInterface iface,
-                                                    OSVR_TimeValue* timestamp,
-                                                    OSVR_PositionState* state);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetDisplay)(OSVR_ClientContext ctx,
-                                                    OSVR_DisplayConfig* disp);
-typedef OSVR_ReturnCode (*pfn_osvrClientFreeDisplay)(OSVR_DisplayConfig disp);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetNumEyesForViewer)(
-  OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount* eyes);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetViewerEyePose)(
-  OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-  OSVR_Pose3* pose);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetDisplayDimensions)(
-  OSVR_DisplayConfig disp, OSVR_DisplayInputCount displayInputIndex,
-  OSVR_DisplayDimension* width, OSVR_DisplayDimension* height);
-typedef OSVR_ReturnCode (
-  *pfn_osvrClientGetViewerEyeSurfaceProjectionClippingPlanes)(
-  OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-  OSVR_SurfaceCount surface, double* left, double* right, double* bottom,
-  double* top);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetRelativeViewportForViewerEyeSurface)(
-  OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-  OSVR_SurfaceCount surface, OSVR_ViewportDimension* left,
-  OSVR_ViewportDimension* bottom, OSVR_ViewportDimension* width,
-  OSVR_ViewportDimension* height);
-typedef OSVR_ReturnCode (*pfn_osvrClientGetViewerEyeSurfaceProjectionMatrixf)(
-  OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-  OSVR_SurfaceCount surface, float near, float far,
-  OSVR_MatrixConventions flags, float* matrix);
-typedef OSVR_ReturnCode (*pfn_osvrClientCheckDisplayStartup)(
-  OSVR_DisplayConfig disp);
-typedef OSVR_ReturnCode (*pfn_osvrClientSetRoomRotationUsingHead)(
-  OSVR_ClientContext ctx);
-}
-
-static pfn_osvrClientInit osvr_ClientInit = nullptr;
-static pfn_osvrClientShutdown osvr_ClientShutdown = nullptr;
-static pfn_osvrClientUpdate osvr_ClientUpdate = nullptr;
-static pfn_osvrClientCheckStatus osvr_ClientCheckStatus = nullptr;
-static pfn_osvrClientGetInterface osvr_ClientGetInterface = nullptr;
-static pfn_osvrClientFreeInterface osvr_ClientFreeInterface = nullptr;
-static pfn_osvrGetOrientationState osvr_GetOrientationState = nullptr;
-static pfn_osvrGetPositionState osvr_GetPositionState = nullptr;
-static pfn_osvrClientGetDisplay osvr_ClientGetDisplay = nullptr;
-static pfn_osvrClientFreeDisplay osvr_ClientFreeDisplay = nullptr;
-static pfn_osvrClientGetNumEyesForViewer osvr_ClientGetNumEyesForViewer =
-  nullptr;
-static pfn_osvrClientGetViewerEyePose osvr_ClientGetViewerEyePose = nullptr;
-static pfn_osvrClientGetDisplayDimensions osvr_ClientGetDisplayDimensions =
-  nullptr;
-static pfn_osvrClientGetViewerEyeSurfaceProjectionClippingPlanes
-  osvr_ClientGetViewerEyeSurfaceProjectionClippingPlanes = nullptr;
-static pfn_osvrClientGetRelativeViewportForViewerEyeSurface
-  osvr_ClientGetRelativeViewportForViewerEyeSurface = nullptr;
-static pfn_osvrClientGetViewerEyeSurfaceProjectionMatrixf
-  osvr_ClientGetViewerEyeSurfaceProjectionMatrixf = nullptr;
-static pfn_osvrClientCheckDisplayStartup osvr_ClientCheckDisplayStartup =
-  nullptr;
-static pfn_osvrClientSetRoomRotationUsingHead
-  osvr_ClientSetRoomRotationUsingHead = nullptr;
-
-bool
-LoadOSVRRuntime()
-{
-  static PRLibrary* osvrUtilLib = nullptr;
-  static PRLibrary* osvrCommonLib = nullptr;
-  static PRLibrary* osvrClientLib = nullptr;
-  static PRLibrary* osvrClientKitLib = nullptr;
-  //this looks up the path in the about:config setting, from greprefs.js or modules\libpref\init\all.js
-  nsAdoptingCString osvrUtilPath =
-    mozilla::Preferences::GetCString("gfx.vr.osvr.utilLibPath");
-  nsAdoptingCString osvrCommonPath =
-    mozilla::Preferences::GetCString("gfx.vr.osvr.commonLibPath");
-  nsAdoptingCString osvrClientPath =
-    mozilla::Preferences::GetCString("gfx.vr.osvr.clientLibPath");
-  nsAdoptingCString osvrClientKitPath =
-    mozilla::Preferences::GetCString("gfx.vr.osvr.clientKitLibPath");
-
-  //we need all the libs to be valid
-  if ((!osvrUtilPath) || (!osvrCommonPath) || (!osvrClientPath) ||
-      (!osvrClientKitPath)) {
-    return false;
-  }
-
-  osvrUtilLib = PR_LoadLibrary(osvrUtilPath.BeginReading());
-  osvrCommonLib = PR_LoadLibrary(osvrCommonPath.BeginReading());
-  osvrClientLib = PR_LoadLibrary(osvrClientPath.BeginReading());
-  osvrClientKitLib = PR_LoadLibrary(osvrClientKitPath.BeginReading());
-
-  if (!osvrUtilLib) {
-    printf_stderr("[OSVR] Failed to load OSVR Util library!\n");
-    return false;
-  }
-  if (!osvrCommonLib) {
-    printf_stderr("[OSVR] Failed to load OSVR Common library!\n");
-    return false;
-  }
-  if (!osvrClientLib) {
-    printf_stderr("[OSVR] Failed to load OSVR Client library!\n");
-    return false;
-  }
-  if (!osvrClientKitLib) {
-    printf_stderr("[OSVR] Failed to load OSVR ClientKit library!\n");
-    return false;
-  }
-
-// make sure all functions that we'll be using are available
-#define REQUIRE_FUNCTION(_x)                                                   \
-  do {                                                                         \
-    *(void**) & osvr_##_x =                                                    \
-      (void*)PR_FindSymbol(osvrClientKitLib, "osvr" #_x);                      \
-    if (!osvr_##_x) {                                                          \
-      printf_stderr("osvr" #_x " symbol missing\n");                           \
-      goto fail;                                                               \
-    }                                                                          \
-  } while (0)
-
-  REQUIRE_FUNCTION(ClientInit);
-  REQUIRE_FUNCTION(ClientShutdown);
-  REQUIRE_FUNCTION(ClientUpdate);
-  REQUIRE_FUNCTION(ClientCheckStatus);
-  REQUIRE_FUNCTION(ClientGetInterface);
-  REQUIRE_FUNCTION(ClientFreeInterface);
-  REQUIRE_FUNCTION(GetOrientationState);
-  REQUIRE_FUNCTION(GetPositionState);
-  REQUIRE_FUNCTION(ClientGetDisplay);
-  REQUIRE_FUNCTION(ClientFreeDisplay);
-  REQUIRE_FUNCTION(ClientGetNumEyesForViewer);
-  REQUIRE_FUNCTION(ClientGetViewerEyePose);
-  REQUIRE_FUNCTION(ClientGetDisplayDimensions);
-  REQUIRE_FUNCTION(ClientGetViewerEyeSurfaceProjectionClippingPlanes);
-  REQUIRE_FUNCTION(ClientGetRelativeViewportForViewerEyeSurface);
-  REQUIRE_FUNCTION(ClientGetViewerEyeSurfaceProjectionMatrixf);
-  REQUIRE_FUNCTION(ClientCheckDisplayStartup);
-  REQUIRE_FUNCTION(ClientSetRoomRotationUsingHead);
-
-#undef REQUIRE_FUNCTION
-
-  return true;
-
-fail:
-  return false;
-}
-
-} // namespace
-
-mozilla::gfx::VRFieldOfView
-SetFromTanRadians(double left, double right, double bottom, double top)
-{
-  mozilla::gfx::VRFieldOfView fovInfo;
-  fovInfo.leftDegrees = atan(left) * 180.0 / M_PI;
-  fovInfo.rightDegrees = atan(right) * 180.0 / M_PI;
-  fovInfo.upDegrees = atan(top) * 180.0 / M_PI;
-  fovInfo.downDegrees = atan(bottom) * 180.0 / M_PI;
-  return fovInfo;
-}
-
-VRDisplayOSVR::VRDisplayOSVR(OSVR_ClientContext* context,
-                         OSVR_ClientInterface* iface,
-                         OSVR_DisplayConfig* display)
-  : VRDisplayHost(VRDeviceType::OSVR)
-  , m_ctx(context)
-  , m_iface(iface)
-  , m_display(display)
-{
-
-  MOZ_COUNT_CTOR_INHERITED(VRDisplayOSVR, VRDisplayHost);
-
-  mDisplayInfo.mIsConnected = true;
-  mDisplayInfo.mDisplayName.AssignLiteral("OSVR HMD");
-  mDisplayInfo.mCapabilityFlags = VRDisplayCapabilityFlags::Cap_None;
-  mDisplayInfo.mCapabilityFlags =
-    VRDisplayCapabilityFlags::Cap_Orientation | VRDisplayCapabilityFlags::Cap_Position;
-
-  mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_External;
-  mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Present;
-
-  // XXX OSVR display topology allows for more than one viewer
-  // will assume only one viewer for now (most likely stay that way)
-
-  OSVR_EyeCount numEyes;
-  osvr_ClientGetNumEyesForViewer(*m_display, 0, &numEyes);
-
-  for (uint8_t eye = 0; eye < numEyes; eye++) {
-    double left, right, bottom, top;
-    // XXX for now there is only one surface per eye
-    osvr_ClientGetViewerEyeSurfaceProjectionClippingPlanes(
-      *m_display, 0, eye, 0, &left, &right, &bottom, &top);
-    mDisplayInfo.mEyeFOV[eye] =
-      SetFromTanRadians(-left, right, -bottom, top);
-  }
-
-  // XXX Assuming there is only one display input for now
-  // however, it's possible to have more than one (dSight with 2 HDMI inputs)
-  OSVR_DisplayDimension width, height;
-  osvr_ClientGetDisplayDimensions(*m_display, 0, &width, &height);
-
-
-  for (uint8_t eye = 0; eye < numEyes; eye++) {
-
-    OSVR_ViewportDimension l, b, w, h;
-    osvr_ClientGetRelativeViewportForViewerEyeSurface(*m_display, 0, eye, 0, &l,
-                                                      &b, &w, &h);
-    mDisplayInfo.mEyeResolution.width = w;
-    mDisplayInfo.mEyeResolution.height = h;
-    OSVR_Pose3 eyePose;
-    // Viewer eye pose may not be immediately available, update client context until we get it
-    OSVR_ReturnCode ret =
-      osvr_ClientGetViewerEyePose(*m_display, 0, eye, &eyePose);
-    while (ret != OSVR_RETURN_SUCCESS) {
-      osvr_ClientUpdate(*m_ctx);
-      ret = osvr_ClientGetViewerEyePose(*m_display, 0, eye, &eyePose);
-    }
-    mDisplayInfo.mEyeTranslation[eye].x = eyePose.translation.data[0];
-    mDisplayInfo.mEyeTranslation[eye].y = eyePose.translation.data[1];
-    mDisplayInfo.mEyeTranslation[eye].z = eyePose.translation.data[2];
-  }
-}
-
-void
-VRDisplayOSVR::Destroy()
-{
-  // destroy non-owning pointers
-  m_ctx = nullptr;
-  m_iface = nullptr;
-  m_display = nullptr;
-}
-
-void
-VRDisplayOSVR::ZeroSensor()
-{
-  // recenter pose aka reset yaw
-  osvr_ClientSetRoomRotationUsingHead(*m_ctx);
-}
-
-VRHMDSensorState
-VRDisplayOSVR::GetSensorState()
-{
-
-  //update client context before anything
-  //this usually goes into app's mainloop
-  osvr_ClientUpdate(*m_ctx);
-
-  VRHMDSensorState result;
-  OSVR_TimeValue timestamp;
-  result.Clear();
-
-  OSVR_OrientationState orientation;
-
-  OSVR_ReturnCode ret =
-    osvr_GetOrientationState(*m_iface, &timestamp, &orientation);
-
-  result.timestamp = timestamp.seconds;
-
-  if (ret == OSVR_RETURN_SUCCESS) {
-    result.flags |= VRDisplayCapabilityFlags::Cap_Orientation;
-    result.orientation[0] = orientation.data[1];
-    result.orientation[1] = orientation.data[2];
-    result.orientation[2] = orientation.data[3];
-    result.orientation[3] = orientation.data[0];
-  }
-
-  OSVR_PositionState position;
-  ret = osvr_GetPositionState(*m_iface, &timestamp, &position);
-  if (ret == OSVR_RETURN_SUCCESS) {
-    result.flags |= VRDisplayCapabilityFlags::Cap_Position;
-    result.position[0] = position.data[0];
-    result.position[1] = position.data[1];
-    result.position[2] = position.data[2];
-  }
-
-  return result;
-}
-
-VRHMDSensorState
-VRDisplayOSVR::GetImmediateSensorState()
-{
-  return GetSensorState();
-}
-
-#if defined(XP_WIN)
-
-void
-VRDisplayOSVR::SubmitFrame(TextureSourceD3D11* aSource,
-  const IntSize& aSize,
-  const VRHMDSensorState& aSensorState,
-  const gfx::Rect& aLeftEyeRect,
-  const gfx::Rect& aRightEyeRect)
-{
-  // XXX Add code to submit frame
-}
-
-#endif
-
-void
-VRDisplayOSVR::StartPresentation()
-{
-  // XXX Add code to start VR Presentation
-}
-
-void
-VRDisplayOSVR::StopPresentation()
-{
-  // XXX Add code to end VR Presentation
-}
-
-already_AddRefed<VRDisplayManagerOSVR>
-VRDisplayManagerOSVR::Create()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!gfxPrefs::VREnabled() || !gfxPrefs::VROSVREnabled()) {
-    return nullptr;
-  }
-  if (!LoadOSVRRuntime()) {
-    return nullptr;
-  }
-  RefPtr<VRDisplayManagerOSVR> manager = new VRDisplayManagerOSVR();
-  return manager.forget();
-}
-
-void
-VRDisplayManagerOSVR::CheckOSVRStatus()
-{
-  if (mOSVRInitialized) {
-    return;
-  }
-
-  // client context must be initialized first
-  InitializeClientContext();
-
-  // update client context
-  osvr_ClientUpdate(m_ctx);
-
-  // initialize interface and display if they are not initialized yet
-  InitializeInterface();
-  InitializeDisplay();
-
-  // OSVR is fully initialized now
-  if (mClientContextInitialized && mDisplayConfigInitialized &&
-      mInterfaceInitialized) {
-    mOSVRInitialized = true;
-  }
-}
-
-void
-VRDisplayManagerOSVR::InitializeClientContext()
-{
-  // already initialized
-  if (mClientContextInitialized) {
-    return;
-  }
-
-  // first time creating
-  if (!m_ctx) {
-    // get client context
-    m_ctx = osvr_ClientInit("com.osvr.webvr", 0);
-    // update context
-    osvr_ClientUpdate(m_ctx);
-    // verify we are connected
-    if (OSVR_RETURN_SUCCESS == osvr_ClientCheckStatus(m_ctx)) {
-      mClientContextInitialized = true;
-    }
-  }
-  // client context exists but not up and running yet
-  else {
-    // update context
-    osvr_ClientUpdate(m_ctx);
-    if (OSVR_RETURN_SUCCESS == osvr_ClientCheckStatus(m_ctx)) {
-      mClientContextInitialized = true;
-    }
-  }
-}
-
-void
-VRDisplayManagerOSVR::InitializeInterface()
-{
-  // already initialized
-  if (mInterfaceInitialized) {
-    return;
-  }
-  //Client context must be initialized before getting interface
-  if (mClientContextInitialized) {
-    // m_iface will remain nullptr if no interface is returned
-    if (OSVR_RETURN_SUCCESS ==
-        osvr_ClientGetInterface(m_ctx, "/me/head", &m_iface)) {
-      mInterfaceInitialized = true;
-    }
-  }
-}
-
-void
-VRDisplayManagerOSVR::InitializeDisplay()
-{
-  // display is fully configured
-  if (mDisplayConfigInitialized) {
-    return;
-  }
-
-  //Client context must be initialized before getting interface
-  if (mClientContextInitialized) {
-    // first time creating display object
-    if (m_display == nullptr) {
-
-      OSVR_ReturnCode ret = osvr_ClientGetDisplay(m_ctx, &m_display);
-
-      if (ret == OSVR_RETURN_SUCCESS) {
-        osvr_ClientUpdate(m_ctx);
-        // display object may have been created but not fully startup
-        if (OSVR_RETURN_SUCCESS == osvr_ClientCheckDisplayStartup(m_display)) {
-          mDisplayConfigInitialized = true;
-        }
-      }
-
-      // Typically once we get Display object, pose data is available after
-      // clientUpdate but sometimes it takes ~ 200 ms to get
-      // a succesfull connection, so we might have to run a few update cycles
-    } else {
-
-      if (OSVR_RETURN_SUCCESS == osvr_ClientCheckDisplayStartup(m_display)) {
-        mDisplayConfigInitialized = true;
-      }
-    }
-  }
-}
-
-bool
-VRDisplayManagerOSVR::Init()
-{
-
-  // OSVR server should be running in the background
-  // It would load plugins and take care of detecting HMDs
-  if (!mOSVRInitialized) {
-    nsIThread* thread = nullptr;
-    NS_GetCurrentThread(&thread);
-    mOSVRThread = already_AddRefed<nsIThread>(thread);
-
-    // initialize client context
-    InitializeClientContext();
-    // try to initialize interface
-    InitializeInterface();
-    // try to initialize display object
-    InitializeDisplay();
-    // verify all components are initialized
-    CheckOSVRStatus();
-  }
-
-  return mOSVRInitialized;
-}
-
-void
-VRDisplayManagerOSVR::Destroy()
-{
-  if (mOSVRInitialized) {
-    MOZ_ASSERT(NS_GetCurrentThread() == mOSVRThread);
-    mOSVRThread = nullptr;
-    mHMDInfo = nullptr;
-    mOSVRInitialized = false;
-  }
-  // client context may not have been initialized
-  if (m_ctx) {
-    osvr_ClientFreeDisplay(m_display);
-  }
-  // osvr checks that m_ctx or m_iface are not null
-  osvr_ClientFreeInterface(m_ctx, m_iface);
-  osvr_ClientShutdown(m_ctx);
-}
-
-void
-VRDisplayManagerOSVR::GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult)
-{
-  // make sure context, interface and display are initialized
-  CheckOSVRStatus();
-
-  if (!mOSVRInitialized) {
-    return;
-  }
-
-  mHMDInfo = new VRDisplayOSVR(&m_ctx, &m_iface, &m_display);
-
-  if (mHMDInfo) {
-    aHMDResult.AppendElement(mHMDInfo);
-  }
-}
diff --git a/gfx/vr/gfxVROSVR.h b/gfx/vr/gfxVROSVR.h
deleted file mode 100644
index 6bd6e93d2..000000000
--- a/gfx/vr/gfxVROSVR.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_OSVR_H
-#define GFX_VR_OSVR_H
-
-#include "nsTArray.h"
-#include "mozilla/RefPtr.h"
-#include "nsThreadUtils.h"
-
-#include "mozilla/gfx/2D.h"
-#include "mozilla/EnumeratedArray.h"
-
-#include "VRDisplayHost.h"
-
-#include <osvr/ClientKit/ClientKitC.h>
-#include <osvr/ClientKit/DisplayC.h>
-
-namespace mozilla {
-namespace gfx {
-namespace impl {
-
-class VRDisplayOSVR : public VRDisplayHost
-{
-public:
-  VRHMDSensorState GetSensorState() override;
-  VRHMDSensorState GetImmediateSensorState() override;
-  void ZeroSensor() override;
-
-protected:
-  virtual void StartPresentation() override;
-  virtual void StopPresentation() override;
-
-#if defined(XP_WIN)
-  virtual void SubmitFrame(TextureSourceD3D11* aSource,
-    const IntSize& aSize,
-    const VRHMDSensorState& aSensorState,
-    const gfx::Rect& aLeftEyeRect,
-    const gfx::Rect& aRightEyeRect) override;
-#endif
-
-public:
-  explicit VRDisplayOSVR(OSVR_ClientContext* context,
-                         OSVR_ClientInterface* iface,
-                         OSVR_DisplayConfig* display);
-
-protected:
-  virtual ~VRDisplayOSVR()
-  {
-    Destroy();
-    MOZ_COUNT_DTOR_INHERITED(VRDisplayOSVR, VRDisplayHost);
-  }
-  void Destroy();
-
-  OSVR_ClientContext* m_ctx;
-  OSVR_ClientInterface* m_iface;
-  OSVR_DisplayConfig* m_display;
-};
-
-} // namespace impl
-
-class VRDisplayManagerOSVR : public VRDisplayManager
-{
-public:
-  static already_AddRefed<VRDisplayManagerOSVR> Create();
-  virtual bool Init() override;
-  virtual void Destroy() override;
-  virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult) override;
-
-protected:
-  VRDisplayManagerOSVR()
-    : mOSVRInitialized(false)
-    , mClientContextInitialized(false)
-    , mDisplayConfigInitialized(false)
-    , mInterfaceInitialized(false)
-    , m_ctx(nullptr)
-    , m_iface(nullptr)
-    , m_display(nullptr)
-  {
-  }
-
-  RefPtr<impl::VRDisplayOSVR> mHMDInfo;
-  bool mOSVRInitialized;
-  bool mClientContextInitialized;
-  bool mDisplayConfigInitialized;
-  bool mInterfaceInitialized;
-  RefPtr<nsIThread> mOSVRThread;
-
-  OSVR_ClientContext m_ctx;
-  OSVR_ClientInterface m_iface;
-  OSVR_DisplayConfig m_display;
-
-private:
-  // check if all components are initialized
-  // and if not, it will try to initialize them
-  void CheckOSVRStatus();
-  void InitializeClientContext();
-  void InitializeDisplay();
-  void InitializeInterface();
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_OSVR_H */
\ No newline at end of file
diff --git a/gfx/vr/gfxVROculus.cpp b/gfx/vr/gfxVROculus.cpp
deleted file mode 100644
index c00a22320..000000000
--- a/gfx/vr/gfxVROculus.cpp
+++ /dev/null
@@ -1,896 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef XP_WIN
-#error "Oculus 1.3 runtime support only available for Windows"
-#endif
-
-#include <math.h>
-
-
-#include "prlink.h"
-#include "prmem.h"
-#include "prenv.h"
-#include "gfxPrefs.h"
-#include "nsString.h"
-#include "mozilla/DebugOnly.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/TimeStamp.h"
-#include "mozilla/gfx/DeviceManagerDx.h"
-#include "ipc/VRLayerParent.h"
-
-#include "mozilla/gfx/Quaternion.h"
-
-#include <d3d11.h>
-#include "CompositorD3D11.h"
-#include "TextureD3D11.h"
-
-#include "gfxVROculus.h"
-
-/** XXX The DX11 objects and quad blitting could be encapsulated
- *    into a separate object if either Oculus starts supporting
- *     non-Windows platforms or the blit is needed by other HMD\
- *     drivers.
- *     Alternately, we could remove the extra blit for
- *     Oculus as well with some more refactoring.
- */
-
-// See CompositorD3D11Shaders.h
-struct ShaderBytes { const void* mData; size_t mLength; };
-extern ShaderBytes sRGBShader;
-extern ShaderBytes sLayerQuadVS;
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::gfx::impl;
-using namespace mozilla::layers;
-
-namespace {
-
-#ifdef OVR_CAPI_LIMITED_MOZILLA
-static pfn_ovr_Initialize ovr_Initialize = nullptr;
-static pfn_ovr_Shutdown ovr_Shutdown = nullptr;
-static pfn_ovr_GetLastErrorInfo ovr_GetLastErrorInfo = nullptr;
-static pfn_ovr_GetVersionString ovr_GetVersionString = nullptr;
-static pfn_ovr_TraceMessage ovr_TraceMessage = nullptr;
-static pfn_ovr_GetHmdDesc ovr_GetHmdDesc = nullptr;
-static pfn_ovr_GetTrackerCount ovr_GetTrackerCount = nullptr;
-static pfn_ovr_GetTrackerDesc ovr_GetTrackerDesc = nullptr;
-static pfn_ovr_Create ovr_Create = nullptr;
-static pfn_ovr_Destroy ovr_Destroy = nullptr;
-static pfn_ovr_GetSessionStatus ovr_GetSessionStatus = nullptr;
-static pfn_ovr_SetTrackingOriginType ovr_SetTrackingOriginType = nullptr;
-static pfn_ovr_GetTrackingOriginType ovr_GetTrackingOriginType = nullptr;
-static pfn_ovr_RecenterTrackingOrigin ovr_RecenterTrackingOrigin = nullptr;
-static pfn_ovr_ClearShouldRecenterFlag ovr_ClearShouldRecenterFlag = nullptr;
-static pfn_ovr_GetTrackingState ovr_GetTrackingState = nullptr;
-static pfn_ovr_GetTrackerPose ovr_GetTrackerPose = nullptr;
-static pfn_ovr_GetInputState ovr_GetInputState = nullptr;
-static pfn_ovr_GetConnectedControllerTypes ovr_GetConnectedControllerTypes = nullptr;
-static pfn_ovr_SetControllerVibration ovr_SetControllerVibration = nullptr;
-static pfn_ovr_GetTextureSwapChainLength ovr_GetTextureSwapChainLength = nullptr;
-static pfn_ovr_GetTextureSwapChainCurrentIndex ovr_GetTextureSwapChainCurrentIndex = nullptr;
-static pfn_ovr_GetTextureSwapChainDesc ovr_GetTextureSwapChainDesc = nullptr;
-static pfn_ovr_CommitTextureSwapChain ovr_CommitTextureSwapChain = nullptr;
-static pfn_ovr_DestroyTextureSwapChain ovr_DestroyTextureSwapChain = nullptr;
-static pfn_ovr_DestroyMirrorTexture ovr_DestroyMirrorTexture = nullptr;
-static pfn_ovr_GetFovTextureSize ovr_GetFovTextureSize = nullptr;
-static pfn_ovr_GetRenderDesc ovr_GetRenderDesc = nullptr;
-static pfn_ovr_SubmitFrame ovr_SubmitFrame = nullptr;
-static pfn_ovr_GetPredictedDisplayTime ovr_GetPredictedDisplayTime = nullptr;
-static pfn_ovr_GetTimeInSeconds ovr_GetTimeInSeconds = nullptr;
-static pfn_ovr_GetBool ovr_GetBool = nullptr;
-static pfn_ovr_SetBool ovr_SetBool = nullptr;
-static pfn_ovr_GetInt ovr_GetInt = nullptr;
-static pfn_ovr_SetInt ovr_SetInt = nullptr;
-static pfn_ovr_GetFloat ovr_GetFloat = nullptr;
-static pfn_ovr_SetFloat ovr_SetFloat = nullptr;
-static pfn_ovr_GetFloatArray ovr_GetFloatArray = nullptr;
-static pfn_ovr_SetFloatArray ovr_SetFloatArray = nullptr;
-static pfn_ovr_GetString ovr_GetString = nullptr;
-static pfn_ovr_SetString ovr_SetString = nullptr;
-
-#ifdef XP_WIN
-static pfn_ovr_CreateTextureSwapChainDX ovr_CreateTextureSwapChainDX = nullptr;
-static pfn_ovr_GetTextureSwapChainBufferDX ovr_GetTextureSwapChainBufferDX = nullptr;
-static pfn_ovr_CreateMirrorTextureDX ovr_CreateMirrorTextureDX = nullptr;
-static pfn_ovr_GetMirrorTextureBufferDX ovr_GetMirrorTextureBufferDX = nullptr;
-#endif
-
-static pfn_ovr_CreateTextureSwapChainGL ovr_CreateTextureSwapChainGL = nullptr;
-static pfn_ovr_GetTextureSwapChainBufferGL ovr_GetTextureSwapChainBufferGL = nullptr;
-static pfn_ovr_CreateMirrorTextureGL ovr_CreateMirrorTextureGL = nullptr;
-static pfn_ovr_GetMirrorTextureBufferGL ovr_GetMirrorTextureBufferGL = nullptr;
-
-#ifdef HAVE_64BIT_BUILD
-#define BUILD_BITS 64
-#else
-#define BUILD_BITS 32
-#endif
-
-#define OVR_PRODUCT_VERSION 1
-#define OVR_MAJOR_VERSION   3
-#define OVR_MINOR_VERSION   1
-
-static bool
-InitializeOculusCAPI()
-{
-  static PRLibrary *ovrlib = nullptr;
-
-  if (!ovrlib) {
-    nsTArray<nsCString> libSearchPaths;
-    nsCString libName;
-    nsCString searchPath;
-
-#if defined(_WIN32)
-    static const char dirSep = '\\';
-#else
-    static const char dirSep = '/';
-#endif
-
-#if defined(_WIN32)
-    static const int pathLen = 260;
-    searchPath.SetCapacity(pathLen);
-    int realLen = ::GetSystemDirectoryA(searchPath.BeginWriting(), pathLen);
-    if (realLen != 0 && realLen < pathLen) {
-      searchPath.SetLength(realLen);
-      libSearchPaths.AppendElement(searchPath);
-    }
-    libName.AppendPrintf("LibOVRRT%d_%d.dll", BUILD_BITS, OVR_PRODUCT_VERSION);
-#elif defined(__APPLE__)
-    searchPath.Truncate();
-    searchPath.AppendPrintf("/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
-    libSearchPaths.AppendElement(searchPath);
-
-    if (PR_GetEnv("HOME")) {
-      searchPath.Truncate();
-      searchPath.AppendPrintf("%s/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", PR_GetEnv("HOME"), OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
-      libSearchPaths.AppendElement(searchPath);
-    }
-    // The following will match the va_list overload of AppendPrintf if the product version is 0
-    // That's bad times.
-    //libName.AppendPrintf("LibOVRRT_%d", OVR_PRODUCT_VERSION);
-    libName.Append("LibOVRRT_");
-    libName.AppendInt(OVR_PRODUCT_VERSION);
-#else
-    libSearchPaths.AppendElement(nsCString("/usr/local/lib"));
-    libSearchPaths.AppendElement(nsCString("/usr/lib"));
-    libName.AppendPrintf("libOVRRT%d_%d.so.%d", BUILD_BITS, OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
-#endif
-    
-    // If the pref is present, we override libName
-    nsAdoptingCString prefLibPath = mozilla::Preferences::GetCString("dom.vr.ovr_lib_path");
-    if (prefLibPath && prefLibPath.get()) {
-      libSearchPaths.InsertElementsAt(0, 1, prefLibPath);
-    }
-
-    nsAdoptingCString prefLibName = mozilla::Preferences::GetCString("dom.vr.ovr_lib_name");
-    if (prefLibName && prefLibName.get()) {
-      libName.Assign(prefLibName);
-    }
-
-    // search the path/module dir
-    libSearchPaths.InsertElementsAt(0, 1, nsCString());
-
-    // If the env var is present, we override libName
-    if (PR_GetEnv("OVR_LIB_PATH")) {
-      searchPath = PR_GetEnv("OVR_LIB_PATH");
-      libSearchPaths.InsertElementsAt(0, 1, searchPath);
-    }
-
-    if (PR_GetEnv("OVR_LIB_NAME")) {
-      libName = PR_GetEnv("OVR_LIB_NAME");
-    }
-
-    for (uint32_t i = 0; i < libSearchPaths.Length(); ++i) {
-      nsCString& libPath = libSearchPaths[i];
-      nsCString fullName;
-      if (libPath.Length() == 0) {
-        fullName.Assign(libName);
-      } else {
-        fullName.AppendPrintf("%s%c%s", libPath.BeginReading(), dirSep, libName.BeginReading());
-      }
-
-      ovrlib = PR_LoadLibrary(fullName.BeginReading());
-      if (ovrlib)
-        break;
-    }
-
-    if (!ovrlib) {
-      return false;
-    }
-  }
-
-  // was it already initialized?
-  if (ovr_Initialize)
-    return true;
-
-#define REQUIRE_FUNCTION(_x) do { \
-    *(void **)&_x = (void *) PR_FindSymbol(ovrlib, #_x);                \
-    if (!_x) { printf_stderr(#_x " symbol missing\n"); goto fail; }       \
-  } while (0)
-
-  REQUIRE_FUNCTION(ovr_Initialize);
-  REQUIRE_FUNCTION(ovr_Shutdown);
-  REQUIRE_FUNCTION(ovr_GetLastErrorInfo);
-  REQUIRE_FUNCTION(ovr_GetVersionString);
-  REQUIRE_FUNCTION(ovr_TraceMessage);
-  REQUIRE_FUNCTION(ovr_GetHmdDesc);
-  REQUIRE_FUNCTION(ovr_GetTrackerCount);
-  REQUIRE_FUNCTION(ovr_GetTrackerDesc);
-  REQUIRE_FUNCTION(ovr_Create);
-  REQUIRE_FUNCTION(ovr_Destroy);
-  REQUIRE_FUNCTION(ovr_GetSessionStatus);
-  REQUIRE_FUNCTION(ovr_SetTrackingOriginType);
-  REQUIRE_FUNCTION(ovr_GetTrackingOriginType);
-  REQUIRE_FUNCTION(ovr_RecenterTrackingOrigin);
-  REQUIRE_FUNCTION(ovr_ClearShouldRecenterFlag);
-  REQUIRE_FUNCTION(ovr_GetTrackingState);
-  REQUIRE_FUNCTION(ovr_GetTrackerPose);
-  REQUIRE_FUNCTION(ovr_GetInputState);
-  REQUIRE_FUNCTION(ovr_GetConnectedControllerTypes);
-  REQUIRE_FUNCTION(ovr_SetControllerVibration);
-  REQUIRE_FUNCTION(ovr_GetTextureSwapChainLength);
-  REQUIRE_FUNCTION(ovr_GetTextureSwapChainCurrentIndex);
-  REQUIRE_FUNCTION(ovr_GetTextureSwapChainDesc);
-  REQUIRE_FUNCTION(ovr_CommitTextureSwapChain);
-  REQUIRE_FUNCTION(ovr_DestroyTextureSwapChain);
-  REQUIRE_FUNCTION(ovr_DestroyMirrorTexture);
-  REQUIRE_FUNCTION(ovr_GetFovTextureSize);
-  REQUIRE_FUNCTION(ovr_GetRenderDesc);
-  REQUIRE_FUNCTION(ovr_SubmitFrame);
-  REQUIRE_FUNCTION(ovr_GetPredictedDisplayTime);
-  REQUIRE_FUNCTION(ovr_GetTimeInSeconds);
-  REQUIRE_FUNCTION(ovr_GetBool);
-  REQUIRE_FUNCTION(ovr_SetBool);
-  REQUIRE_FUNCTION(ovr_GetInt);
-  REQUIRE_FUNCTION(ovr_SetInt);
-  REQUIRE_FUNCTION(ovr_GetFloat);
-  REQUIRE_FUNCTION(ovr_SetFloat);
-  REQUIRE_FUNCTION(ovr_GetFloatArray);
-  REQUIRE_FUNCTION(ovr_SetFloatArray);
-  REQUIRE_FUNCTION(ovr_GetString);
-  REQUIRE_FUNCTION(ovr_SetString);
-
-#ifdef XP_WIN
-
-  REQUIRE_FUNCTION(ovr_CreateTextureSwapChainDX);
-  REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferDX);
-  REQUIRE_FUNCTION(ovr_CreateMirrorTextureDX);
-  REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferDX);
-
-#endif
-
-  REQUIRE_FUNCTION(ovr_CreateTextureSwapChainGL);
-  REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferGL);
-  REQUIRE_FUNCTION(ovr_CreateMirrorTextureGL);
-  REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferGL);
-
-#undef REQUIRE_FUNCTION
-
-  return true;
-
- fail:
-  ovr_Initialize = nullptr;
-  return false;
-}
-
-#else
-#include <OVR_Version.h>
-// we're statically linked; it's available
-static bool InitializeOculusCAPI()
-{
-  return true;
-}
-
-#endif
-
-ovrFovPort
-ToFovPort(const VRFieldOfView& aFOV)
-{
-  ovrFovPort fovPort;
-  fovPort.LeftTan = tan(aFOV.leftDegrees * M_PI / 180.0);
-  fovPort.RightTan = tan(aFOV.rightDegrees * M_PI / 180.0);
-  fovPort.UpTan = tan(aFOV.upDegrees * M_PI / 180.0);
-  fovPort.DownTan = tan(aFOV.downDegrees * M_PI / 180.0);
-  return fovPort;
-}
-
-VRFieldOfView
-FromFovPort(const ovrFovPort& aFOV)
-{
-  VRFieldOfView fovInfo;
-  fovInfo.leftDegrees = atan(aFOV.LeftTan) * 180.0 / M_PI;
-  fovInfo.rightDegrees = atan(aFOV.RightTan) * 180.0 / M_PI;
-  fovInfo.upDegrees = atan(aFOV.UpTan) * 180.0 / M_PI;
-  fovInfo.downDegrees = atan(aFOV.DownTan) * 180.0 / M_PI;
-  return fovInfo;
-}
-
-} // namespace
-
-VRDisplayOculus::VRDisplayOculus(ovrSession aSession)
-  : VRDisplayHost(VRDeviceType::Oculus)
-  , mSession(aSession)
-  , mTextureSet(nullptr)
-  , mQuadVS(nullptr)
-  , mQuadPS(nullptr)
-  , mLinearSamplerState(nullptr)
-  , mVSConstantBuffer(nullptr)
-  , mPSConstantBuffer(nullptr)
-  , mVertexBuffer(nullptr)
-  , mInputLayout(nullptr)
-  , mIsPresenting(false)
-{
-  MOZ_COUNT_CTOR_INHERITED(VRDisplayOculus, VRDisplayHost);
-
-  mDisplayInfo.mDisplayName.AssignLiteral("Oculus VR HMD");
-  mDisplayInfo.mIsConnected = true;
-
-  mDesc = ovr_GetHmdDesc(aSession);
-
-  mDisplayInfo.mCapabilityFlags = VRDisplayCapabilityFlags::Cap_None;
-  if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Orientation) {
-    mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Orientation;
-    mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_AngularAcceleration;
-  }
-  if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Position) {
-    mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Position;
-    mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_LinearAcceleration;
-  }
-  mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_External;
-  mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Present;
-
-  mFOVPort[VRDisplayInfo::Eye_Left] = mDesc.DefaultEyeFov[ovrEye_Left];
-  mFOVPort[VRDisplayInfo::Eye_Right] = mDesc.DefaultEyeFov[ovrEye_Right];
-
-  mDisplayInfo.mEyeFOV[VRDisplayInfo::Eye_Left] = FromFovPort(mFOVPort[VRDisplayInfo::Eye_Left]);
-  mDisplayInfo.mEyeFOV[VRDisplayInfo::Eye_Right] = FromFovPort(mFOVPort[VRDisplayInfo::Eye_Right]);
-
-  float pixelsPerDisplayPixel = 1.0;
-  ovrSizei texSize[2];
-
-  // get eye parameters and create the mesh
-  for (uint32_t eye = 0; eye < VRDisplayInfo::NumEyes; eye++) {
-
-    ovrEyeRenderDesc renderDesc = ovr_GetRenderDesc(mSession, (ovrEyeType)eye, mFOVPort[eye]);
-
-    // As of Oculus 0.6.0, the HmdToEyeOffset values are correct and don't need to be negated.
-    mDisplayInfo.mEyeTranslation[eye] = Point3D(renderDesc.HmdToEyeOffset.x, renderDesc.HmdToEyeOffset.y, renderDesc.HmdToEyeOffset.z);
-
-    texSize[eye] = ovr_GetFovTextureSize(mSession, (ovrEyeType)eye, mFOVPort[eye], pixelsPerDisplayPixel);
-  }
-
-  // take the max of both for eye resolution
-  mDisplayInfo.mEyeResolution.width = std::max(texSize[VRDisplayInfo::Eye_Left].w, texSize[VRDisplayInfo::Eye_Right].w);
-  mDisplayInfo.mEyeResolution.height = std::max(texSize[VRDisplayInfo::Eye_Left].h, texSize[VRDisplayInfo::Eye_Right].h);
-}
-
-VRDisplayOculus::~VRDisplayOculus() {
-  StopPresentation();
-  Destroy();
-  MOZ_COUNT_DTOR_INHERITED(VRDisplayOculus, VRDisplayHost);
-}
-
-void
-VRDisplayOculus::Destroy()
-{
-  if (mSession) {
-    ovr_Destroy(mSession);
-    mSession = nullptr;
-  }
-}
-
-void
-VRDisplayOculus::ZeroSensor()
-{
-  ovr_RecenterTrackingOrigin(mSession);
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetSensorState()
-{
-  mInputFrameID++;
-
-  VRHMDSensorState result;
-  double frameDelta = 0.0f;
-  if (gfxPrefs::VRPosePredictionEnabled()) {
-    // XXX We might need to call ovr_GetPredictedDisplayTime even if we don't use the result.
-    // If we don't call it, the Oculus driver will spew out many warnings...
-    double predictedFrameTime = ovr_GetPredictedDisplayTime(mSession, mInputFrameID);
-    frameDelta = predictedFrameTime - ovr_GetTimeInSeconds();
-  }
-  result = GetSensorState(frameDelta);
-  result.inputFrameID = mInputFrameID;
-  mLastSensorState[result.inputFrameID % kMaxLatencyFrames] = result;
-  return result;
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetImmediateSensorState()
-{
-  return GetSensorState(0.0);
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetSensorState(double timeOffset)
-{
-  VRHMDSensorState result;
-  result.Clear();
-
-  ovrTrackingState state = ovr_GetTrackingState(mSession, timeOffset, true);
-  ovrPoseStatef& pose(state.HeadPose);
-
-  result.timestamp = pose.TimeInSeconds;
-
-  if (state.StatusFlags & ovrStatus_OrientationTracked) {
-    result.flags |= VRDisplayCapabilityFlags::Cap_Orientation;
-
-    result.orientation[0] = pose.ThePose.Orientation.x;
-    result.orientation[1] = pose.ThePose.Orientation.y;
-    result.orientation[2] = pose.ThePose.Orientation.z;
-    result.orientation[3] = pose.ThePose.Orientation.w;
-    
-    result.angularVelocity[0] = pose.AngularVelocity.x;
-    result.angularVelocity[1] = pose.AngularVelocity.y;
-    result.angularVelocity[2] = pose.AngularVelocity.z;
-
-    result.flags |= VRDisplayCapabilityFlags::Cap_AngularAcceleration;
-
-    result.angularAcceleration[0] = pose.AngularAcceleration.x;
-    result.angularAcceleration[1] = pose.AngularAcceleration.y;
-    result.angularAcceleration[2] = pose.AngularAcceleration.z;
-  }
-
-  if (state.StatusFlags & ovrStatus_PositionTracked) {
-    result.flags |= VRDisplayCapabilityFlags::Cap_Position;
-
-    result.position[0] = pose.ThePose.Position.x;
-    result.position[1] = pose.ThePose.Position.y;
-    result.position[2] = pose.ThePose.Position.z;
-    
-    result.linearVelocity[0] = pose.LinearVelocity.x;
-    result.linearVelocity[1] = pose.LinearVelocity.y;
-    result.linearVelocity[2] = pose.LinearVelocity.z;
-
-    result.flags |= VRDisplayCapabilityFlags::Cap_LinearAcceleration;
-
-    result.linearAcceleration[0] = pose.LinearAcceleration.x;
-    result.linearAcceleration[1] = pose.LinearAcceleration.y;
-    result.linearAcceleration[2] = pose.LinearAcceleration.z;
-  }
-  result.flags |= VRDisplayCapabilityFlags::Cap_External;
-  result.flags |= VRDisplayCapabilityFlags::Cap_Present;
-
-  return result;
-}
-
-void
-VRDisplayOculus::StartPresentation()
-{
-  if (mIsPresenting) {
-    return;
-  }
-  mIsPresenting = true;
-
-  /**
-   * The presentation format is determined by content, which describes the
-   * left and right eye rectangles in the VRLayer.  The default, if no
-   * coordinates are passed is to place the left and right eye textures
-   * side-by-side within the buffer.
-   *
-   * XXX - An optimization would be to dynamically resize this buffer
-   *       to accomodate sites that are choosing to render in a lower
-   *       resolution or are using space outside of the left and right
-   *       eye textures for other purposes.  (Bug 1291443)
-   */
-  ovrTextureSwapChainDesc desc;
-  memset(&desc, 0, sizeof(desc));
-  desc.Type = ovrTexture_2D;
-  desc.ArraySize = 1;
-  desc.Format = OVR_FORMAT_B8G8R8A8_UNORM_SRGB;
-  desc.Width = mDisplayInfo.mEyeResolution.width * 2;
-  desc.Height = mDisplayInfo.mEyeResolution.height;
-  desc.MipLevels = 1;
-  desc.SampleCount = 1;
-  desc.StaticImage = false;
-  desc.MiscFlags = ovrTextureMisc_DX_Typeless;
-  desc.BindFlags = ovrTextureBind_DX_RenderTarget;
-
-  if (!mDevice) {
-    mDevice = gfx::DeviceManagerDx::Get()->GetCompositorDevice();
-    if (!mDevice) {
-      NS_WARNING("Failed to get a D3D11Device for Oculus");
-      return;
-    }
-  }
-
-  mDevice->GetImmediateContext(getter_AddRefs(mContext));
-  if (!mContext) {
-    NS_WARNING("Failed to get immediate context for Oculus");
-    return;
-  }
-
-  if (FAILED(mDevice->CreateVertexShader(sLayerQuadVS.mData, sLayerQuadVS.mLength, nullptr, &mQuadVS))) {
-    NS_WARNING("Failed to create vertex shader for Oculus");
-    return;
-  }
-
-  if (FAILED(mDevice->CreatePixelShader(sRGBShader.mData, sRGBShader.mLength, nullptr, &mQuadPS))) {
-    NS_WARNING("Failed to create pixel shader for Oculus");
-    return;
-  }
-
-  CD3D11_BUFFER_DESC cBufferDesc(sizeof(layers::VertexShaderConstants),
-    D3D11_BIND_CONSTANT_BUFFER,
-    D3D11_USAGE_DYNAMIC,
-    D3D11_CPU_ACCESS_WRITE);
-
-  if (FAILED(mDevice->CreateBuffer(&cBufferDesc, nullptr, getter_AddRefs(mVSConstantBuffer)))) {
-    NS_WARNING("Failed to vertex shader constant buffer for Oculus");
-    return;
-  }
-
-  cBufferDesc.ByteWidth = sizeof(layers::PixelShaderConstants);
-  if (FAILED(mDevice->CreateBuffer(&cBufferDesc, nullptr, getter_AddRefs(mPSConstantBuffer)))) {
-    NS_WARNING("Failed to pixel shader constant buffer for Oculus");
-    return;
-  }
-
-  CD3D11_SAMPLER_DESC samplerDesc(D3D11_DEFAULT);
-  if (FAILED(mDevice->CreateSamplerState(&samplerDesc, getter_AddRefs(mLinearSamplerState)))) {
-    NS_WARNING("Failed to create sampler state for Oculus");
-    return;
-  }
-
-  D3D11_INPUT_ELEMENT_DESC layout[] =
-  {
-    { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
-  };
-
-  if (FAILED(mDevice->CreateInputLayout(layout,
-                                            sizeof(layout) / sizeof(D3D11_INPUT_ELEMENT_DESC),
-                                            sLayerQuadVS.mData,
-                                            sLayerQuadVS.mLength,
-                                            getter_AddRefs(mInputLayout)))) {
-    NS_WARNING("Failed to create input layout for Oculus");
-    return;
-  }
-
-  ovrResult orv = ovr_CreateTextureSwapChainDX(mSession, mDevice, &desc, &mTextureSet);
-  if (orv != ovrSuccess) {
-    NS_WARNING("ovr_CreateTextureSwapChainDX failed");
-    return;
-  }
-
-  int textureCount = 0;
-  orv = ovr_GetTextureSwapChainLength(mSession, mTextureSet, &textureCount);
-  if (orv != ovrSuccess) {
-    NS_WARNING("ovr_GetTextureSwapChainLength failed");
-    return;
-  }
-
-  Vertex vertices[] = { { { 0.0, 0.0 } },{ { 1.0, 0.0 } },{ { 0.0, 1.0 } },{ { 1.0, 1.0 } } };
-  CD3D11_BUFFER_DESC bufferDesc(sizeof(vertices), D3D11_BIND_VERTEX_BUFFER);
-  D3D11_SUBRESOURCE_DATA data;
-  data.pSysMem = (void*)vertices;
-
-  if (FAILED(mDevice->CreateBuffer(&bufferDesc, &data, getter_AddRefs(mVertexBuffer)))) {
-    NS_WARNING("Failed to create vertex buffer for Oculus");
-    return;
-  }
-
-  mRenderTargets.SetLength(textureCount);
-
-  memset(&mVSConstants, 0, sizeof(mVSConstants));
-  memset(&mPSConstants, 0, sizeof(mPSConstants));
-
-  for (int i = 0; i < textureCount; ++i) {
-    RefPtr<CompositingRenderTargetD3D11> rt;
-    ID3D11Texture2D* texture = nullptr;
-    orv = ovr_GetTextureSwapChainBufferDX(mSession, mTextureSet, i, IID_PPV_ARGS(&texture));
-    MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainBufferDX failed.");
-    rt = new CompositingRenderTargetD3D11(texture, IntPoint(0, 0), DXGI_FORMAT_B8G8R8A8_UNORM);
-    rt->SetSize(IntSize(mDisplayInfo.mEyeResolution.width * 2, mDisplayInfo.mEyeResolution.height));
-    mRenderTargets[i] = rt;
-    texture->Release();
-  }
-}
-
-void
-VRDisplayOculus::StopPresentation()
-{
-  if (!mIsPresenting) {
-    return;
-  }
-  mIsPresenting = false;
-
-  ovr_SubmitFrame(mSession, 0, nullptr, nullptr, 0);
-
-  if (mTextureSet) {
-    ovr_DestroyTextureSwapChain(mSession, mTextureSet);
-    mTextureSet = nullptr;
-  }
-}
-
-/*static*/ already_AddRefed<VRDisplayManagerOculus>
-VRDisplayManagerOculus::Create()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!gfxPrefs::VREnabled() || !gfxPrefs::VROculusEnabled())
-  {
-    return nullptr;
-  }
-
-  if (!InitializeOculusCAPI()) {
-    return nullptr;
-  }
-
-  RefPtr<VRDisplayManagerOculus> manager = new VRDisplayManagerOculus();
-  return manager.forget();
-}
-
-bool
-VRDisplayManagerOculus::Init()
-{
-  if (!mOculusInitialized) {
-    nsIThread* thread = nullptr;
-    NS_GetCurrentThread(&thread);
-    mOculusThread = already_AddRefed<nsIThread>(thread);
-
-    ovrInitParams params;
-    memset(&params, 0, sizeof(params));
-    params.Flags = ovrInit_RequestVersion;
-    params.RequestedMinorVersion = OVR_MINOR_VERSION;
-    params.LogCallback = nullptr;
-    params.ConnectionTimeoutMS = 0;
-
-    ovrResult orv = ovr_Initialize(&params);
-
-    if (orv == ovrSuccess) {
-      mOculusInitialized = true;
-    }
-  }
-
-  return mOculusInitialized;
-}
-
-void
-VRDisplayManagerOculus::Destroy()
-{
-  if (mOculusInitialized) {
-    MOZ_ASSERT(NS_GetCurrentThread() == mOculusThread);
-    mOculusThread = nullptr;
-
-    mHMDInfo = nullptr;
-
-    ovr_Shutdown();
-    mOculusInitialized = false;
-  }
-}
-
-void
-VRDisplayManagerOculus::GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult)
-{
-  if (!mOculusInitialized) {
-    return;
-  }
-
-  // ovr_Create can be slow when no HMD is present and we wish
-  // to keep the same oculus session when possible, so we detect
-  // presence of an HMD with ovr_GetHmdDesc before calling ovr_Create
-  ovrHmdDesc desc = ovr_GetHmdDesc(NULL);
-  if (desc.Type == ovrHmd_None) {
-    // No HMD connected.
-    mHMDInfo = nullptr;
-  } else if (mHMDInfo == nullptr) {
-    // HMD Detected
-    ovrSession session;
-    ovrGraphicsLuid luid;
-    ovrResult orv = ovr_Create(&session, &luid);
-    if (orv == ovrSuccess) {
-      mHMDInfo = new VRDisplayOculus(session);
-    }
-  }
-
-  if (mHMDInfo) {
-    aHMDResult.AppendElement(mHMDInfo);
-  }
-}
-
-already_AddRefed<CompositingRenderTargetD3D11>
-VRDisplayOculus::GetNextRenderTarget()
-{
-  int currentRenderTarget = 0;
-  DebugOnly<ovrResult> orv = ovr_GetTextureSwapChainCurrentIndex(mSession, mTextureSet, &currentRenderTarget);
-  MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainCurrentIndex failed.");
-
-  mRenderTargets[currentRenderTarget]->ClearOnBind();
-  RefPtr<CompositingRenderTargetD3D11> rt = mRenderTargets[currentRenderTarget];
-  return rt.forget();
-}
-
-bool
-VRDisplayOculus::UpdateConstantBuffers()
-{
-  HRESULT hr;
-  D3D11_MAPPED_SUBRESOURCE resource;
-  resource.pData = nullptr;
-
-  hr = mContext->Map(mVSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
-  if (FAILED(hr) || !resource.pData) {
-    return false;
-  }
-  *(VertexShaderConstants*)resource.pData = mVSConstants;
-  mContext->Unmap(mVSConstantBuffer, 0);
-  resource.pData = nullptr;
-
-  hr = mContext->Map(mPSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
-  if (FAILED(hr) || !resource.pData) {
-    return false;
-  }
-  *(PixelShaderConstants*)resource.pData = mPSConstants;
-  mContext->Unmap(mPSConstantBuffer, 0);
-
-  ID3D11Buffer *buffer = mVSConstantBuffer;
-  mContext->VSSetConstantBuffers(0, 1, &buffer);
-  buffer = mPSConstantBuffer;
-  mContext->PSSetConstantBuffers(0, 1, &buffer);
-  return true;
-}
-
-void
-VRDisplayOculus::SubmitFrame(TextureSourceD3D11* aSource,
-  const IntSize& aSize,
-  const VRHMDSensorState& aSensorState,
-  const gfx::Rect& aLeftEyeRect,
-  const gfx::Rect& aRightEyeRect)
-{
-  if (!mIsPresenting) {
-    return;
-  }
-  if (mRenderTargets.IsEmpty()) {
-    /**
-     * XXX - We should resolve fail the promise returned by
-     *       VRDisplay.requestPresent() when the DX11 resources fail allocation
-     *       in VRDisplayOculus::StartPresentation().
-     *       Bailing out here prevents the crash but content should be aware
-     *       that frames are not being presented.
-     *       See Bug 1299309.
-     **/
-    return;
-  }
-  MOZ_ASSERT(mDevice);
-  MOZ_ASSERT(mContext);
-
-  RefPtr<CompositingRenderTargetD3D11> surface = GetNextRenderTarget();
-
-  surface->BindRenderTarget(mContext);
-
-  Matrix viewMatrix = Matrix::Translation(-1.0, 1.0);
-  viewMatrix.PreScale(2.0f / float(aSize.width), 2.0f / float(aSize.height));
-  viewMatrix.PreScale(1.0f, -1.0f);
-  Matrix4x4 projection = Matrix4x4::From2D(viewMatrix);
-  projection._33 = 0.0f;
-
-  Matrix transform2d;
-  gfx::Matrix4x4 transform = gfx::Matrix4x4::From2D(transform2d);
-
-  D3D11_VIEWPORT viewport;
-  viewport.MinDepth = 0.0f;
-  viewport.MaxDepth = 1.0f;
-  viewport.Width = aSize.width;
-  viewport.Height = aSize.height;
-  viewport.TopLeftX = 0;
-  viewport.TopLeftY = 0;
-
-  D3D11_RECT scissor;
-  scissor.left = 0;
-  scissor.right = aSize.width;
-  scissor.top = 0;
-  scissor.bottom = aSize.height;
-
-  memcpy(&mVSConstants.layerTransform, &transform._11, sizeof(mVSConstants.layerTransform));
-  memcpy(&mVSConstants.projection, &projection._11, sizeof(mVSConstants.projection));
-  mVSConstants.renderTargetOffset[0] = 0.0f;
-  mVSConstants.renderTargetOffset[1] = 0.0f;
-  mVSConstants.layerQuad = Rect(0.0f, 0.0f, aSize.width, aSize.height);
-  mVSConstants.textureCoords = Rect(0.0f, 1.0f, 1.0f, -1.0f);
-
-  mPSConstants.layerOpacity[0] = 1.0f;
-
-  ID3D11Buffer* vbuffer = mVertexBuffer;
-  UINT vsize = sizeof(Vertex);
-  UINT voffset = 0;
-  mContext->IASetVertexBuffers(0, 1, &vbuffer, &vsize, &voffset);
-  mContext->IASetIndexBuffer(nullptr, DXGI_FORMAT_R16_UINT, 0);
-  mContext->IASetInputLayout(mInputLayout);
-  mContext->RSSetViewports(1, &viewport);
-  mContext->RSSetScissorRects(1, &scissor);
-  mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
-  mContext->VSSetShader(mQuadVS, nullptr, 0);
-  mContext->PSSetShader(mQuadPS, nullptr, 0);
-  ID3D11ShaderResourceView* srView = aSource->GetShaderResourceView();
-  mContext->PSSetShaderResources(0 /* 0 == TexSlot::RGB */, 1, &srView);
-  // XXX Use Constant from TexSlot in CompositorD3D11.cpp?
-
-  ID3D11SamplerState *sampler = mLinearSamplerState;
-  mContext->PSSetSamplers(0, 1, &sampler);
-
-  if (!UpdateConstantBuffers()) {
-    NS_WARNING("Failed to update constant buffers for Oculus");
-    return;
-  }
-
-  mContext->Draw(4, 0);
-
-  ovrResult orv = ovr_CommitTextureSwapChain(mSession, mTextureSet);
-  if (orv != ovrSuccess) {
-    NS_WARNING("ovr_CommitTextureSwapChain failed.\n");
-    return;
-  }
-
-  ovrLayerEyeFov layer;
-  memset(&layer, 0, sizeof(layer));
-  layer.Header.Type = ovrLayerType_EyeFov;
-  layer.Header.Flags = 0;
-  layer.ColorTexture[0] = mTextureSet;
-  layer.ColorTexture[1] = nullptr;
-  layer.Fov[0] = mFOVPort[0];
-  layer.Fov[1] = mFOVPort[1];
-  layer.Viewport[0].Pos.x = aSize.width * aLeftEyeRect.x;
-  layer.Viewport[0].Pos.y = aSize.height * aLeftEyeRect.y;
-  layer.Viewport[0].Size.w = aSize.width * aLeftEyeRect.width;
-  layer.Viewport[0].Size.h = aSize.height * aLeftEyeRect.height;
-  layer.Viewport[1].Pos.x = aSize.width * aRightEyeRect.x;
-  layer.Viewport[1].Pos.y = aSize.height * aRightEyeRect.y;
-  layer.Viewport[1].Size.w = aSize.width * aRightEyeRect.width;
-  layer.Viewport[1].Size.h = aSize.height * aRightEyeRect.height;
-
-  const Point3D& l = mDisplayInfo.mEyeTranslation[0];
-  const Point3D& r = mDisplayInfo.mEyeTranslation[1];
-  const ovrVector3f hmdToEyeViewOffset[2] = { { l.x, l.y, l.z },
-                                              { r.x, r.y, r.z } };
-
-  for (uint32_t i = 0; i < 2; ++i) {
-    Quaternion o(aSensorState.orientation[0],
-      aSensorState.orientation[1],
-      aSensorState.orientation[2],
-      aSensorState.orientation[3]);
-    Point3D vo(hmdToEyeViewOffset[i].x, hmdToEyeViewOffset[i].y, hmdToEyeViewOffset[i].z);
-    Point3D p = o.RotatePoint(vo);
-    layer.RenderPose[i].Orientation.x = o.x;
-    layer.RenderPose[i].Orientation.y = o.y;
-    layer.RenderPose[i].Orientation.z = o.z;
-    layer.RenderPose[i].Orientation.w = o.w;
-    layer.RenderPose[i].Position.x = p.x + aSensorState.position[0];
-    layer.RenderPose[i].Position.y = p.y + aSensorState.position[1];
-    layer.RenderPose[i].Position.z = p.z + aSensorState.position[2];
-  }
-
-  ovrLayerHeader *layers = &layer.Header;
-  orv = ovr_SubmitFrame(mSession, aSensorState.inputFrameID, nullptr, &layers, 1);
-
-  if (orv != ovrSuccess) {
-    printf_stderr("ovr_SubmitFrame failed.\n");
-  }
-
-  // Trigger the next VSync immediately
-  VRManager *vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyVRVsync(mDisplayInfo.mDisplayID);
-}
-
-void
-VRDisplayOculus::NotifyVSync()
-{
-  ovrSessionStatus sessionStatus;
-  ovrResult ovr = ovr_GetSessionStatus(mSession, &sessionStatus);
-  mDisplayInfo.mIsConnected = (ovr == ovrSuccess && sessionStatus.HmdPresent);
-}
diff --git a/gfx/vr/gfxVROculus.h b/gfx/vr/gfxVROculus.h
deleted file mode 100644
index ff00cb1df..000000000
--- a/gfx/vr/gfxVROculus.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_OCULUS_H
-#define GFX_VR_OCULUS_H
-
-#include "nsTArray.h"
-#include "mozilla/RefPtr.h"
-
-#include "mozilla/gfx/2D.h"
-#include "mozilla/EnumeratedArray.h"
-
-#include "gfxVR.h"
-#include "VRDisplayHost.h"
-#include "ovr_capi_dynamic.h"
-
-struct ID3D11Device;
-
-namespace mozilla {
-namespace layers {
-class CompositingRenderTargetD3D11;
-struct VertexShaderConstants;
-struct PixelShaderConstants;
-}
-namespace gfx {
-namespace impl {
-
-class VRDisplayOculus : public VRDisplayHost
-{
-public:
-  virtual void NotifyVSync() override;
-  virtual VRHMDSensorState GetSensorState() override;
-  virtual VRHMDSensorState GetImmediateSensorState() override;
-  void ZeroSensor() override;
-
-protected:
-  virtual void StartPresentation() override;
-  virtual void StopPresentation() override;
-  virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
-                           const IntSize& aSize,
-                           const VRHMDSensorState& aSensorState,
-                           const gfx::Rect& aLeftEyeRect,
-                           const gfx::Rect& aRightEyeRect) override;
-
-public:
-  explicit VRDisplayOculus(ovrSession aSession);
-
-protected:
-  virtual ~VRDisplayOculus();
-  void Destroy();
-
-  bool RequireSession();
-  const ovrHmdDesc& GetHmdDesc();
-
-  already_AddRefed<layers::CompositingRenderTargetD3D11> GetNextRenderTarget();
-
-  VRHMDSensorState GetSensorState(double timeOffset);
-
-  ovrHmdDesc mDesc;
-  ovrSession mSession;
-  ovrFovPort mFOVPort[2];
-  ovrTextureSwapChain mTextureSet;
-  nsTArray<RefPtr<layers::CompositingRenderTargetD3D11>> mRenderTargets;
-
-  RefPtr<ID3D11Device> mDevice;
-  RefPtr<ID3D11DeviceContext> mContext;
-  ID3D11VertexShader* mQuadVS;
-  ID3D11PixelShader* mQuadPS;
-  RefPtr<ID3D11SamplerState> mLinearSamplerState;
-  layers::VertexShaderConstants mVSConstants;
-  layers::PixelShaderConstants mPSConstants;
-  RefPtr<ID3D11Buffer> mVSConstantBuffer;
-  RefPtr<ID3D11Buffer> mPSConstantBuffer;
-  RefPtr<ID3D11Buffer> mVertexBuffer;
-  RefPtr<ID3D11InputLayout> mInputLayout;
-
-  bool mIsPresenting;
-  
-  bool UpdateConstantBuffers();
-
-  struct Vertex
-  {
-    float position[2];
-  };
-};
-
-} // namespace impl
-
-class VRDisplayManagerOculus : public VRDisplayManager
-{
-public:
-  static already_AddRefed<VRDisplayManagerOculus> Create();
-  virtual bool Init() override;
-  virtual void Destroy() override;
-  virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost> >& aHMDResult) override;
-protected:
-  VRDisplayManagerOculus()
-    : mOculusInitialized(false)
-  { }
-
-  RefPtr<impl::VRDisplayOculus> mHMDInfo;
-  bool mOculusInitialized;
-  RefPtr<nsIThread> mOculusThread;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_OCULUS_H */
diff --git a/gfx/vr/gfxVROpenVR.cpp b/gfx/vr/gfxVROpenVR.cpp
deleted file mode 100644
index 01149c983..000000000
--- a/gfx/vr/gfxVROpenVR.cpp
+++ /dev/null
@@ -1,749 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <math.h>
-
-#include "prlink.h"
-#include "prmem.h"
-#include "prenv.h"
-#include "gfxPrefs.h"
-#include "nsString.h"
-#include "mozilla/Preferences.h"
-
-#include "mozilla/gfx/Quaternion.h"
-
-#ifdef XP_WIN
-#include "CompositorD3D11.h"
-#include "TextureD3D11.h"
-#endif // XP_WIN
-
-#include "gfxVROpenVR.h"
-
-#include "nsServiceManagerUtils.h"
-#include "nsIScreenManager.h"
-#include "openvr/openvr.h"
-
-#ifdef MOZ_GAMEPAD
-#include "mozilla/dom/GamepadEventTypes.h"
-#include "mozilla/dom/GamepadBinding.h"
-#endif
-
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::gfx::impl;
-using namespace mozilla::layers;
-using namespace mozilla::dom;
-
-namespace {
-extern "C" {
-typedef uint32_t (VR_CALLTYPE * pfn_VR_InitInternal)(::vr::HmdError *peError, ::vr::EVRApplicationType eApplicationType);
-typedef void (VR_CALLTYPE * pfn_VR_ShutdownInternal)();
-typedef bool (VR_CALLTYPE * pfn_VR_IsHmdPresent)();
-typedef bool (VR_CALLTYPE * pfn_VR_IsRuntimeInstalled)();
-typedef const char * (VR_CALLTYPE * pfn_VR_GetStringForHmdError)(::vr::HmdError error);
-typedef void * (VR_CALLTYPE * pfn_VR_GetGenericInterface)(const char *pchInterfaceVersion, ::vr::HmdError *peError);
-} // extern "C"
-} // namespace
-
-static pfn_VR_InitInternal vr_InitInternal = nullptr;
-static pfn_VR_ShutdownInternal vr_ShutdownInternal = nullptr;
-static pfn_VR_IsHmdPresent vr_IsHmdPresent = nullptr;
-static pfn_VR_IsRuntimeInstalled vr_IsRuntimeInstalled = nullptr;
-static pfn_VR_GetStringForHmdError vr_GetStringForHmdError = nullptr;
-static pfn_VR_GetGenericInterface vr_GetGenericInterface = nullptr;
-
-// EButton_System, EButton_DPad_xx, and EButton_A
-// can not be triggered in Steam Vive in OpenVR SDK 1.0.3.
-const uint64_t gOpenVRButtonMask[] = {
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_System),
-  vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_ApplicationMenu),
-  vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_Grip),
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_DPad_Left),
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_DPad_Up),
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_DPad_Right),
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_DPad_Down),
-  // vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_A),
-  vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_SteamVR_Touchpad),
-  vr::ButtonMaskFromId(vr::EVRButtonId::k_EButton_SteamVR_Trigger)
-};
-
-const uint32_t gNumOpenVRButtonMask = sizeof(gOpenVRButtonMask) /
-                                      sizeof(uint64_t);
-
-enum class VRControllerAxisType : uint16_t {
-  TrackpadXAxis,
-  TrackpadYAxis,
-  Trigger,
-  NumVRControllerAxisType
-};
-
-#define VRControllerAxis(aButtonId) (aButtonId - vr::EVRButtonId::k_EButton_Axis0)
-
-const uint32_t gOpenVRAxes[] = {
-  VRControllerAxis(vr::EVRButtonId::k_EButton_Axis0),
-  VRControllerAxis(vr::EVRButtonId::k_EButton_Axis0),
-  VRControllerAxis(vr::EVRButtonId::k_EButton_Axis1)
-};
-
-const uint32_t gNumOpenVRAxis = sizeof(gOpenVRAxes) /
-                                sizeof(uint32_t);
-
-
-bool
-LoadOpenVRRuntime()
-{
-  static PRLibrary *openvrLib = nullptr;
-
-  nsAdoptingCString openvrPath = Preferences::GetCString("gfx.vr.openvr-runtime");
-  if (!openvrPath)
-    return false;
-
-  openvrLib = PR_LoadLibrary(openvrPath.BeginReading());
-  if (!openvrLib)
-    return false;
-
-#define REQUIRE_FUNCTION(_x) do {                                       \
-    *(void **)&vr_##_x = (void *) PR_FindSymbol(openvrLib, "VR_" #_x);  \
-    if (!vr_##_x) { printf_stderr("VR_" #_x " symbol missing\n"); return false; } \
-  } while (0)
-
-  REQUIRE_FUNCTION(InitInternal);
-  REQUIRE_FUNCTION(ShutdownInternal);
-  REQUIRE_FUNCTION(IsHmdPresent);
-  REQUIRE_FUNCTION(IsRuntimeInstalled);
-  REQUIRE_FUNCTION(GetStringForHmdError);
-  REQUIRE_FUNCTION(GetGenericInterface);
-
-#undef REQUIRE_FUNCTION
-
-  return true;
-}
-
-VRDisplayOpenVR::VRDisplayOpenVR(::vr::IVRSystem *aVRSystem,
-                                 ::vr::IVRChaperone *aVRChaperone,
-                                 ::vr::IVRCompositor *aVRCompositor)
-  : VRDisplayHost(VRDeviceType::OpenVR)
-  , mVRSystem(aVRSystem)
-  , mVRChaperone(aVRChaperone)
-  , mVRCompositor(aVRCompositor)
-  , mIsPresenting(false)
-{
-  MOZ_COUNT_CTOR_INHERITED(VRDisplayOpenVR, VRDisplayHost);
-
-  mDisplayInfo.mDisplayName.AssignLiteral("OpenVR HMD");
-  mDisplayInfo.mIsConnected = true;
-  mDisplayInfo.mCapabilityFlags = VRDisplayCapabilityFlags::Cap_None |
-                                  VRDisplayCapabilityFlags::Cap_Orientation |
-                                  VRDisplayCapabilityFlags::Cap_Position |
-                                  VRDisplayCapabilityFlags::Cap_External |
-                                  VRDisplayCapabilityFlags::Cap_Present |
-                                  VRDisplayCapabilityFlags::Cap_StageParameters;
-
-  mVRCompositor->SetTrackingSpace(::vr::TrackingUniverseSeated);
-
-  uint32_t w, h;
-  mVRSystem->GetRecommendedRenderTargetSize(&w, &h);
-  mDisplayInfo.mEyeResolution.width = w;
-  mDisplayInfo.mEyeResolution.height = h;
-
-  // SteamVR gives the application a single FOV to use; it's not configurable as with Oculus
-  for (uint32_t eye = 0; eye < 2; ++eye) {
-    // get l/r/t/b clip plane coordinates
-    float l, r, t, b;
-    mVRSystem->GetProjectionRaw(static_cast<::vr::Hmd_Eye>(eye), &l, &r, &t, &b);
-    mDisplayInfo.mEyeFOV[eye].SetFromTanRadians(-t, r, b, -l);
-
-    ::vr::HmdMatrix34_t eyeToHead = mVRSystem->GetEyeToHeadTransform(static_cast<::vr::Hmd_Eye>(eye));
-
-    mDisplayInfo.mEyeTranslation[eye].x = eyeToHead.m[0][3];
-    mDisplayInfo.mEyeTranslation[eye].y = eyeToHead.m[1][3];
-    mDisplayInfo.mEyeTranslation[eye].z = eyeToHead.m[2][3];
-  }
-
-  UpdateStageParameters();
-}
-
-VRDisplayOpenVR::~VRDisplayOpenVR()
-{
-  Destroy();
-  MOZ_COUNT_DTOR_INHERITED(VRDisplayOpenVR, VRDisplayHost);
-}
-
-void
-VRDisplayOpenVR::Destroy()
-{
-  StopPresentation();
-  vr_ShutdownInternal();
-}
-
-void
-VRDisplayOpenVR::UpdateStageParameters()
-{
-  float sizeX = 0.0f;
-  float sizeZ = 0.0f;
-  if (mVRChaperone->GetPlayAreaSize(&sizeX, &sizeZ)) {
-    ::vr::HmdMatrix34_t t = mVRSystem->GetSeatedZeroPoseToStandingAbsoluteTrackingPose();
-    mDisplayInfo.mStageSize.width = sizeX;
-    mDisplayInfo.mStageSize.height = sizeZ;
-
-    mDisplayInfo.mSittingToStandingTransform._11 = t.m[0][0];
-    mDisplayInfo.mSittingToStandingTransform._12 = t.m[1][0];
-    mDisplayInfo.mSittingToStandingTransform._13 = t.m[2][0];
-    mDisplayInfo.mSittingToStandingTransform._14 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._21 = t.m[0][1];
-    mDisplayInfo.mSittingToStandingTransform._22 = t.m[1][1];
-    mDisplayInfo.mSittingToStandingTransform._23 = t.m[2][1];
-    mDisplayInfo.mSittingToStandingTransform._24 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._31 = t.m[0][2];
-    mDisplayInfo.mSittingToStandingTransform._32 = t.m[1][2];
-    mDisplayInfo.mSittingToStandingTransform._33 = t.m[2][2];
-    mDisplayInfo.mSittingToStandingTransform._34 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._41 = t.m[0][3];
-    mDisplayInfo.mSittingToStandingTransform._42 = t.m[1][3];
-    mDisplayInfo.mSittingToStandingTransform._43 = t.m[2][3];
-    mDisplayInfo.mSittingToStandingTransform._44 = 1.0f;
-  } else {
-    // If we fail, fall back to reasonable defaults.
-    // 1m x 1m space, 0.75m high in seated position
-
-    mDisplayInfo.mStageSize.width = 1.0f;
-    mDisplayInfo.mStageSize.height = 1.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._11 = 1.0f;
-    mDisplayInfo.mSittingToStandingTransform._12 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._13 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._14 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._21 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._22 = 1.0f;
-    mDisplayInfo.mSittingToStandingTransform._23 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._24 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._31 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._32 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._33 = 1.0f;
-    mDisplayInfo.mSittingToStandingTransform._34 = 0.0f;
-
-    mDisplayInfo.mSittingToStandingTransform._41 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._42 = 0.75f;
-    mDisplayInfo.mSittingToStandingTransform._43 = 0.0f;
-    mDisplayInfo.mSittingToStandingTransform._44 = 1.0f;
-  }
-}
-
-void
-VRDisplayOpenVR::ZeroSensor()
-{
-  mVRSystem->ResetSeatedZeroPose();
-  UpdateStageParameters();
-}
-
-VRHMDSensorState
-VRDisplayOpenVR::GetSensorState()
-{
-  return GetSensorState(0.0f);
-}
-
-VRHMDSensorState
-VRDisplayOpenVR::GetImmediateSensorState()
-{
-  return GetSensorState(0.0f);
-}
-
-VRHMDSensorState
-VRDisplayOpenVR::GetSensorState(double timeOffset)
-{
-  {
-    ::vr::VREvent_t event;
-    while (mVRSystem->PollNextEvent(&event, sizeof(event))) {
-      // ignore
-    }
-  }
-
-  ::vr::TrackedDevicePose_t poses[::vr::k_unMaxTrackedDeviceCount];
-  // Note: We *must* call WaitGetPoses in order for any rendering to happen at all
-  mVRCompositor->WaitGetPoses(poses, ::vr::k_unMaxTrackedDeviceCount, nullptr, 0);
-
-  VRHMDSensorState result;
-  result.Clear();
-  result.timestamp = PR_Now();
-
-  if (poses[::vr::k_unTrackedDeviceIndex_Hmd].bDeviceIsConnected &&
-      poses[::vr::k_unTrackedDeviceIndex_Hmd].bPoseIsValid &&
-      poses[::vr::k_unTrackedDeviceIndex_Hmd].eTrackingResult == ::vr::TrackingResult_Running_OK)
-  {
-    const ::vr::TrackedDevicePose_t& pose = poses[::vr::k_unTrackedDeviceIndex_Hmd];
-
-    gfx::Matrix4x4 m;
-    // NOTE! mDeviceToAbsoluteTracking is a 3x4 matrix, not 4x4.  But
-    // because of its arrangement, we can copy the 12 elements in and
-    // then transpose them to the right place.  We do this so we can
-    // pull out a Quaternion.
-    memcpy(&m._11, &pose.mDeviceToAbsoluteTracking, sizeof(float) * 12);
-    m.Transpose();
-
-    gfx::Quaternion rot;
-    rot.SetFromRotationMatrix(m);
-    rot.Invert();
-
-    result.flags |= VRDisplayCapabilityFlags::Cap_Orientation;
-    result.orientation[0] = rot.x;
-    result.orientation[1] = rot.y;
-    result.orientation[2] = rot.z;
-    result.orientation[3] = rot.w;
-    result.angularVelocity[0] = pose.vAngularVelocity.v[0];
-    result.angularVelocity[1] = pose.vAngularVelocity.v[1];
-    result.angularVelocity[2] = pose.vAngularVelocity.v[2];
-
-    result.flags |= VRDisplayCapabilityFlags::Cap_Position;
-    result.position[0] = m._41;
-    result.position[1] = m._42;
-    result.position[2] = m._43;
-    result.linearVelocity[0] = pose.vVelocity.v[0];
-    result.linearVelocity[1] = pose.vVelocity.v[1];
-    result.linearVelocity[2] = pose.vVelocity.v[2];
-  }
-
-  return result;
-}
-
-void
-VRDisplayOpenVR::StartPresentation()
-{
-  if (mIsPresenting) {
-    return;
-  }
-  mIsPresenting = true;
-}
-
-void
-VRDisplayOpenVR::StopPresentation()
-{
-  if (!mIsPresenting) {
-    return;
-  }
-
-  mVRCompositor->ClearLastSubmittedFrame();
-
-  mIsPresenting = false;
-}
-
-
-#if defined(XP_WIN)
-
-void
-VRDisplayOpenVR::SubmitFrame(TextureSourceD3D11* aSource,
-  const IntSize& aSize,
-  const VRHMDSensorState& aSensorState,
-  const gfx::Rect& aLeftEyeRect,
-  const gfx::Rect& aRightEyeRect)
-{
-  if (!mIsPresenting) {
-    return;
-  }
-
-  ::vr::Texture_t tex;
-  tex.handle = (void *)aSource->GetD3D11Texture();
-  tex.eType = ::vr::EGraphicsAPIConvention::API_DirectX;
-  tex.eColorSpace = ::vr::EColorSpace::ColorSpace_Auto;
-
-  ::vr::VRTextureBounds_t bounds;
-  bounds.uMin = aLeftEyeRect.x;
-  bounds.vMin = 1.0 - aLeftEyeRect.y;
-  bounds.uMax = aLeftEyeRect.x + aLeftEyeRect.width;
-  bounds.vMax = 1.0 - aLeftEyeRect.y - aLeftEyeRect.height;
-
-  ::vr::EVRCompositorError err;
-  err = mVRCompositor->Submit(::vr::EVREye::Eye_Left, &tex, &bounds);
-  if (err != ::vr::EVRCompositorError::VRCompositorError_None) {
-    printf_stderr("OpenVR Compositor Submit() failed.\n");
-  }
-
-  bounds.uMin = aRightEyeRect.x;
-  bounds.vMin = 1.0 - aRightEyeRect.y;
-  bounds.uMax = aRightEyeRect.x + aRightEyeRect.width;
-  bounds.vMax = 1.0 - aRightEyeRect.y - aRightEyeRect.height;
-
-  err = mVRCompositor->Submit(::vr::EVREye::Eye_Right, &tex, &bounds);
-  if (err != ::vr::EVRCompositorError::VRCompositorError_None) {
-    printf_stderr("OpenVR Compositor Submit() failed.\n");
-  }
-
-  mVRCompositor->PostPresentHandoff();
-
-  // Trigger the next VSync immediately
-  VRManager *vm = VRManager::Get();
-  MOZ_ASSERT(vm);
-  vm->NotifyVRVsync(mDisplayInfo.mDisplayID);
-}
-
-#endif
-
-void
-VRDisplayOpenVR::NotifyVSync()
-{
-  // We update mIsConneced once per frame.
-  mDisplayInfo.mIsConnected = vr_IsHmdPresent();
-}
-
-VRDisplayManagerOpenVR::VRDisplayManagerOpenVR()
-  : mOpenVRInstalled(false)
-{
-}
-
-/*static*/ already_AddRefed<VRDisplayManagerOpenVR>
-VRDisplayManagerOpenVR::Create()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!gfxPrefs::VREnabled() || !gfxPrefs::VROpenVREnabled()) {
-    return nullptr;
-  }
-
-  if (!LoadOpenVRRuntime()) {
-    return nullptr;
-  }
-
-  RefPtr<VRDisplayManagerOpenVR> manager = new VRDisplayManagerOpenVR();
-  return manager.forget();
-}
-
-bool
-VRDisplayManagerOpenVR::Init()
-{
-  if (mOpenVRInstalled)
-    return true;
-
-  if (!vr_IsRuntimeInstalled())
-    return false;
-
-  mOpenVRInstalled = true;
-  return true;
-}
-
-void
-VRDisplayManagerOpenVR::Destroy()
-{
-  if (mOpenVRInstalled) {
-    if (mOpenVRHMD) {
-      mOpenVRHMD = nullptr;
-    }
-    mOpenVRInstalled = false;
-  }
-}
-
-void
-VRDisplayManagerOpenVR::GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult)
-{
-  if (!mOpenVRInstalled) {
-    return;
-  }
-
-  if (!vr_IsHmdPresent()) {
-    if (mOpenVRHMD) {
-      mOpenVRHMD = nullptr;
-    }
-  } else if (mOpenVRHMD == nullptr) {
-    ::vr::HmdError err;
-
-    vr_InitInternal(&err, ::vr::EVRApplicationType::VRApplication_Scene);
-    if (err) {
-      return;
-    }
-
-    ::vr::IVRSystem *system = (::vr::IVRSystem *)vr_GetGenericInterface(::vr::IVRSystem_Version, &err);
-    if (err || !system) {
-      vr_ShutdownInternal();
-      return;
-    }
-    ::vr::IVRChaperone *chaperone = (::vr::IVRChaperone *)vr_GetGenericInterface(::vr::IVRChaperone_Version, &err);
-    if (err || !chaperone) {
-      vr_ShutdownInternal();
-      return;
-    }
-    ::vr::IVRCompositor *compositor = (::vr::IVRCompositor*)vr_GetGenericInterface(::vr::IVRCompositor_Version, &err);
-    if (err || !compositor) {
-      vr_ShutdownInternal();
-      return;
-    }
-
-    mOpenVRHMD = new VRDisplayOpenVR(system, chaperone, compositor);
-  }
-
-  if (mOpenVRHMD) {
-    aHMDResult.AppendElement(mOpenVRHMD);
-  }
-}
-
-VRControllerOpenVR::VRControllerOpenVR()
-  : VRControllerHost(VRDeviceType::OpenVR)
-{
-  MOZ_COUNT_CTOR_INHERITED(VRControllerOpenVR, VRControllerHost);
-  mControllerInfo.mControllerName.AssignLiteral("OpenVR HMD");
-#ifdef MOZ_GAMEPAD
-  mControllerInfo.mMappingType = static_cast<uint32_t>(GamepadMappingType::_empty);
-#else
-  mControllerInfo.mMappingType = 0;
-#endif
-  mControllerInfo.mNumButtons = gNumOpenVRButtonMask;
-  mControllerInfo.mNumAxes = gNumOpenVRAxis;
-}
-
-VRControllerOpenVR::~VRControllerOpenVR()
-{
-  MOZ_COUNT_DTOR_INHERITED(VRControllerOpenVR, VRControllerHost);
-}
-
-void
-VRControllerOpenVR::SetTrackedIndex(uint32_t aTrackedIndex)
-{
-  mTrackedIndex = aTrackedIndex;
-}
-
-uint32_t
-VRControllerOpenVR::GetTrackedIndex()
-{
-  return mTrackedIndex;
-}
-
-VRControllerManagerOpenVR::VRControllerManagerOpenVR()
-  : mOpenVRInstalled(false), mVRSystem(nullptr)
-{
-}
-
-VRControllerManagerOpenVR::~VRControllerManagerOpenVR()
-{
-  Destroy();
-}
-
-/*static*/ already_AddRefed<VRControllerManagerOpenVR>
-VRControllerManagerOpenVR::Create()
-{
-  if (!gfxPrefs::VREnabled() || !gfxPrefs::VROpenVREnabled()) {
-    return nullptr;
-  }
-
-  RefPtr<VRControllerManagerOpenVR> manager = new VRControllerManagerOpenVR();
-  return manager.forget();
-}
-
-bool
-VRControllerManagerOpenVR::Init()
-{
-  if (mOpenVRInstalled)
-    return true;
-
-  if (!vr_IsRuntimeInstalled())
-    return false;
-
-  // Loading the OpenVR Runtime
-  vr::EVRInitError err = vr::VRInitError_None;
-
-  vr_InitInternal(&err, vr::VRApplication_Scene);
-  if (err != vr::VRInitError_None) {
-    return false;
-  }
-
-  mVRSystem = (vr::IVRSystem *)vr_GetGenericInterface(vr::IVRSystem_Version, &err);
-  if ((err != vr::VRInitError_None) || !mVRSystem) {
-    vr_ShutdownInternal();
-    return false;
-  }
-
-  mOpenVRInstalled = true;
-  return true;
-}
-
-void
-VRControllerManagerOpenVR::Destroy()
-{
-  mOpenVRController.Clear();
-  mOpenVRInstalled = false;
-}
-
-void
-VRControllerManagerOpenVR::HandleInput()
-{
-  RefPtr<impl::VRControllerOpenVR> controller;
-  vr::VRControllerState_t state;
-  uint32_t axis = 0;
-
-  if (!mOpenVRInstalled) {
-    return;
-  }
-
-  MOZ_ASSERT(mVRSystem);
-
-  vr::TrackedDevicePose_t poses[vr::k_unMaxTrackedDeviceCount];
-  mVRSystem->GetDeviceToAbsoluteTrackingPose(vr::TrackingUniverseSeated, 0.0f,
-                                             poses, vr::k_unMaxTrackedDeviceCount);
-  // Process OpenVR controller state
-  for (uint32_t i = 0; i < mOpenVRController.Length(); ++i) {
-    controller = mOpenVRController[i];
-
-    MOZ_ASSERT(mVRSystem->GetTrackedDeviceClass(controller->GetTrackedIndex())
-               == vr::TrackedDeviceClass_Controller);
-
-    if (mVRSystem->GetControllerState(controller->GetTrackedIndex(), &state)) {
-      HandleButtonPress(controller->GetIndex(), state.ulButtonPressed);
-
-      axis = static_cast<uint32_t>(VRControllerAxisType::TrackpadXAxis);
-      HandleAxisMove(controller->GetIndex(), axis,
-                     state.rAxis[gOpenVRAxes[axis]].x);
-
-      axis = static_cast<uint32_t>(VRControllerAxisType::TrackpadYAxis);
-      HandleAxisMove(controller->GetIndex(), axis,
-                     state.rAxis[gOpenVRAxes[axis]].y);
-
-      axis = static_cast<uint32_t>(VRControllerAxisType::Trigger);
-      HandleAxisMove(controller->GetIndex(), axis,
-                     state.rAxis[gOpenVRAxes[axis]].x);
-    }
-
-    // Start to process pose
-    const ::vr::TrackedDevicePose_t& pose = poses[controller->GetTrackedIndex()];
-
-    if (pose.bDeviceIsConnected && pose.bPoseIsValid &&
-      pose.eTrackingResult == vr::TrackingResult_Running_OK) {
-      gfx::Matrix4x4 m;
-
-      // NOTE! mDeviceToAbsoluteTracking is a 3x4 matrix, not 4x4.  But
-      // because of its arrangement, we can copy the 12 elements in and
-      // then transpose them to the right place.  We do this so we can
-      // pull out a Quaternion.
-      memcpy(&m.components, &pose.mDeviceToAbsoluteTracking, sizeof(float) * 12);
-      m.Transpose();
-
-      gfx::Quaternion rot;
-      rot.SetFromRotationMatrix(m);
-      rot.Invert();
-
-      GamepadPoseState poseState;
-      poseState.flags |= GamepadCapabilityFlags::Cap_Orientation;
-      poseState.orientation[0] = rot.x;
-      poseState.orientation[1] = rot.y;
-      poseState.orientation[2] = rot.z;
-      poseState.orientation[3] = rot.w;
-      poseState.angularVelocity[0] = pose.vAngularVelocity.v[0];
-      poseState.angularVelocity[1] = pose.vAngularVelocity.v[1];
-      poseState.angularVelocity[2] = pose.vAngularVelocity.v[2];
-
-      poseState.flags |= GamepadCapabilityFlags::Cap_Position;
-      poseState.position[0] = m._41;
-      poseState.position[1] = m._42;
-      poseState.position[2] = m._43;
-      poseState.linearVelocity[0] = pose.vVelocity.v[0];
-      poseState.linearVelocity[1] = pose.vVelocity.v[1];
-      poseState.linearVelocity[2] = pose.vVelocity.v[2];
-      HandlePoseTracking(controller->GetIndex(), poseState, controller);
-    }
-  }
-}
-
-void
-VRControllerManagerOpenVR::HandleButtonPress(uint32_t aControllerIdx,
-                                             uint64_t aButtonPressed)
-{
-  uint64_t buttonMask = 0;
-  RefPtr<impl::VRControllerOpenVR> controller;
-  controller = mOpenVRController[aControllerIdx];
-  uint64_t diff = (controller->GetButtonPressed() ^ aButtonPressed);
-
-  if (!diff) {
-    return;
-  }
-
-  for (uint32_t i = 0; i < gNumOpenVRButtonMask; ++i) {
-    buttonMask = gOpenVRButtonMask[i];
-
-    if (diff & buttonMask) {
-      // diff & aButtonPressed would be true while a new button press
-      // event, otherwise it is an old press event and needs to notify
-      // the button has been released.
-      NewButtonEvent(aControllerIdx, i, diff & aButtonPressed);
-    }
-  }
-
-  controller->SetButtonPressed(aButtonPressed);
-}
-
-void
-VRControllerManagerOpenVR::HandleAxisMove(uint32_t aControllerIdx, uint32_t aAxis,
-                                          float aValue)
-{
-  if (aValue != 0.0f) {
-    NewAxisMove(aControllerIdx, aAxis, aValue);
-  }
-}
-
-void
-VRControllerManagerOpenVR::HandlePoseTracking(uint32_t aControllerIdx,
-                                              const GamepadPoseState& aPose,
-                                              VRControllerHost* aController)
-{
-  if (aPose != aController->GetPose()) {
-    aController->SetPose(aPose);
-    NewPoseState(aControllerIdx, aPose);
-  }
-}
-
-void
-VRControllerManagerOpenVR::GetControllers(nsTArray<RefPtr<VRControllerHost>>& aControllerResult)
-{
-  if (!mOpenVRInstalled) {
-    return;
-  }
-
-  aControllerResult.Clear();
-  for (uint32_t i = 0; i < mOpenVRController.Length(); ++i) {
-    aControllerResult.AppendElement(mOpenVRController[i]);
-  }
-}
-
-void
-VRControllerManagerOpenVR::ScanForDevices()
-{
-  // Remove the existing gamepads
-  for (uint32_t i = 0; i < mOpenVRController.Length(); ++i) {
-    RemoveGamepad(mOpenVRController[i]->GetIndex());
-  }
-  mControllerCount = 0;
-  mOpenVRController.Clear();
-
-  if (!mVRSystem)
-    return;
-
-  // Basically, we would have HMDs in the tracked devices, but we are just interested in the controllers.
-  for ( vr::TrackedDeviceIndex_t trackedDevice = vr::k_unTrackedDeviceIndex_Hmd + 1;
-        trackedDevice < vr::k_unMaxTrackedDeviceCount; ++trackedDevice ) {
-    if (!mVRSystem->IsTrackedDeviceConnected(trackedDevice)) {
-      continue;
-    }
-
-    if (mVRSystem->GetTrackedDeviceClass(trackedDevice) != vr::TrackedDeviceClass_Controller) {
-      continue;
-    }
-
-    RefPtr<VRControllerOpenVR> openVRController = new VRControllerOpenVR();
-    openVRController->SetIndex(mControllerCount);
-    openVRController->SetTrackedIndex(trackedDevice);
-    mOpenVRController.AppendElement(openVRController);
-
-// Only in MOZ_GAMEPAD platform, We add gamepads.
-#ifdef MOZ_GAMEPAD
-    // Not already present, add it.
-    AddGamepad("OpenVR Gamepad", static_cast<uint32_t>(GamepadMappingType::_empty),
-               gNumOpenVRButtonMask, gNumOpenVRAxis);
-    ++mControllerCount;
-#endif
-  }
-}
\ No newline at end of file
diff --git a/gfx/vr/gfxVROpenVR.h b/gfx/vr/gfxVROpenVR.h
deleted file mode 100644
index 829f88253..000000000
--- a/gfx/vr/gfxVROpenVR.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_OPENVR_H
-#define GFX_VR_OPENVR_H
-
-#include "nsTArray.h"
-#include "nsIScreen.h"
-#include "nsCOMPtr.h"
-#include "mozilla/RefPtr.h"
-
-#include "mozilla/gfx/2D.h"
-#include "mozilla/EnumeratedArray.h"
-
-#include "gfxVR.h"
-
-// OpenVR Interfaces
-namespace vr {
-class IVRChaperone;
-class IVRCompositor;
-class IVRSystem;
-struct TrackedDevicePose_t;
-}
-
-namespace mozilla {
-namespace gfx {
-namespace impl {
-
-class VRDisplayOpenVR : public VRDisplayHost
-{
-public:
-  virtual void NotifyVSync() override;
-  virtual VRHMDSensorState GetSensorState() override;
-  virtual VRHMDSensorState GetImmediateSensorState() override;
-  void ZeroSensor() override;
-
-protected:
-  virtual void StartPresentation() override;
-  virtual void StopPresentation() override;
-#if defined(XP_WIN)
-  virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
-                           const IntSize& aSize,
-                           const VRHMDSensorState& aSensorState,
-                           const gfx::Rect& aLeftEyeRect,
-                           const gfx::Rect& aRightEyeRect) override;
-#endif
-
-public:
-  explicit VRDisplayOpenVR(::vr::IVRSystem *aVRSystem,
-                           ::vr::IVRChaperone *aVRChaperone,
-                           ::vr::IVRCompositor *aVRCompositor);
-
-protected:
-  virtual ~VRDisplayOpenVR();
-  void Destroy();
-
-  VRHMDSensorState GetSensorState(double timeOffset);
-
-  // not owned by us; global from OpenVR
-  ::vr::IVRSystem *mVRSystem;
-  ::vr::IVRChaperone *mVRChaperone;
-  ::vr::IVRCompositor *mVRCompositor;
-
-  bool mIsPresenting;
-
-  void UpdateStageParameters();
-};
-
-} // namespace impl
-
-class VRDisplayManagerOpenVR : public VRDisplayManager
-{
-public:
-  static already_AddRefed<VRDisplayManagerOpenVR> Create();
-
-  virtual bool Init() override;
-  virtual void Destroy() override;
-  virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost> >& aHMDResult) override;
-protected:
-  VRDisplayManagerOpenVR();
-
-  // there can only be one
-  RefPtr<impl::VRDisplayOpenVR> mOpenVRHMD;
-  bool mOpenVRInstalled;
-};
-
-namespace impl {
-
-class VRControllerOpenVR : public VRControllerHost
-{
-public:
-  explicit VRControllerOpenVR();
-  void SetTrackedIndex(uint32_t aTrackedIndex);
-  uint32_t GetTrackedIndex();
-
-protected:
-  virtual ~VRControllerOpenVR();
-
-  // The index of tracked devices from vr::IVRSystem.
-  uint32_t mTrackedIndex;
-};
-
-} // namespace impl
-
-class VRControllerManagerOpenVR : public VRControllerManager
-{
-public:
-  static already_AddRefed<VRControllerManagerOpenVR> Create();
-
-  virtual bool Init() override;
-  virtual void Destroy() override;
-  virtual void HandleInput() override;
-  virtual void GetControllers(nsTArray<RefPtr<VRControllerHost>>&
-                              aControllerResult) override;
-  virtual void ScanForDevices() override;
-
-private:
-  VRControllerManagerOpenVR();
-  ~VRControllerManagerOpenVR();
-
-  virtual void HandleButtonPress(uint32_t aControllerIdx,
-                                 uint64_t aButtonPressed) override;
-  virtual void HandleAxisMove(uint32_t aControllerIdx, uint32_t aAxis,
-                              float aValue) override;
-  virtual void HandlePoseTracking(uint32_t aControllerIdx,
-                                  const dom::GamepadPoseState& aPose,
-                                  VRControllerHost* aController) override;
-
-  bool mOpenVRInstalled;
-  nsTArray<RefPtr<impl::VRControllerOpenVR>> mOpenVRController;
-  vr::IVRSystem *mVRSystem;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-
-#endif /* GFX_VR_OPENVR_H */
diff --git a/gfx/vr/ipc/PVRLayer.ipdl b/gfx/vr/ipc/PVRLayer.ipdl
deleted file mode 100644
index 593fccdd4..000000000
--- a/gfx/vr/ipc/PVRLayer.ipdl
+++ /dev/null
@@ -1,27 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-include protocol PVRManager;
-include protocol PTexture;
-
-namespace mozilla {
-namespace gfx {
-
-async protocol PVRLayer
-{
-  manager PVRManager;
-
-parent:
-  async SubmitFrame(PTexture aTexture);
-  async Destroy();
-
-child:
-  async __delete__();
-};
-
-} // gfx
-} // mozilla
diff --git a/gfx/vr/ipc/PVRManager.ipdl b/gfx/vr/ipc/PVRManager.ipdl
deleted file mode 100644
index 65f114fba..000000000
--- a/gfx/vr/ipc/PVRManager.ipdl
+++ /dev/null
@@ -1,86 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-include LayersSurfaces;
-include protocol PLayer;
-include protocol PTexture;
-include protocol PVRLayer;
-include LayersMessages;
-include GamepadEventTypes;
-
-include "VRMessageUtils.h";
-
-using struct mozilla::gfx::VRFieldOfView from "gfxVR.h";
-using struct mozilla::gfx::VRDisplayInfo from "gfxVR.h";
-using struct mozilla::gfx::VRSensorUpdate from "gfxVR.h";
-using struct mozilla::gfx::VRHMDSensorState from "gfxVR.h";
-using struct mozilla::gfx::VRControllerInfo from "gfxVR.h";
-using mozilla::layers::LayersBackend from "mozilla/layers/LayersTypes.h";
-using mozilla::layers::TextureFlags from "mozilla/layers/CompositorTypes.h";
-
-
-namespace mozilla {
-namespace gfx {
-
-/**
- * The PVRManager protocol is used to enable communication of VR display
- * enumeration and sensor state between the compositor thread and
- * content threads/processes.
- */
-sync protocol PVRManager
-{
-  manages PTexture;
-  manages PVRLayer;
-
-parent:
-  async PTexture(SurfaceDescriptor aSharedData, LayersBackend aBackend,
-                 TextureFlags aTextureFlags, uint64_t aSerial);
-
-  async PVRLayer(uint32_t aDisplayID, float aLeftEyeX, float aLeftEyeY, float aLeftEyeWidth, float aLeftEyeHeight, float aRightEyeX, float aRightEyeY, float aRightEyeWidth, float aRightEyeHeight);
-
-  // (Re)Enumerate VR Displays.  An updated list of VR displays will be returned
-  // asynchronously to children via UpdateDisplayInfo.
-  async RefreshDisplays();
-
-  // GetDisplays synchronously returns the VR displays that have already been
-  // enumerated by RefreshDisplays() but does not enumerate new ones.
-  sync GetDisplays() returns(VRDisplayInfo[] aDisplayInfo);
-
-  // Reset the sensor of the display identified by aDisplayID so that the current
-  // sensor state is the "Zero" position.
-  async ResetSensor(uint32_t aDisplayID);
-
-  sync GetSensorState(uint32_t aDisplayID) returns(VRHMDSensorState aState);
-  sync GetImmediateSensorState(uint32_t aDisplayID) returns(VRHMDSensorState aState);
-  sync SetHaveEventListener(bool aHaveEventListener);
-
-  async ControllerListenerAdded();
-  async ControllerListenerRemoved();
-  // GetControllers synchronously returns the VR controllers that have already been
-  // enumerated by RefreshVRControllers() but does not enumerate new ones.
-  sync GetControllers() returns(VRControllerInfo[] aControllerInfo);
-
-child:
-
-  async ParentAsyncMessages(AsyncParentMessageData[] aMessages);
-
-  // Notify children of updated VR display enumeration and details.  This will
-  // be sent to all children when the parent receives RefreshDisplays, even
-  // if no changes have been detected.  This ensures that Promises exposed
-  // through DOM calls are always resolved.
-  async UpdateDisplayInfo(VRDisplayInfo[] aDisplayUpdates);
-
-  async NotifyVSync();
-  async NotifyVRVSync(uint32_t aDisplayID);
-  async GamepadUpdate(GamepadChangeEvent aGamepadEvent);
-
-  async __delete__();
-
-};
-
-} // gfx
-} // mozilla
diff --git a/gfx/vr/ipc/VRLayerChild.cpp b/gfx/vr/ipc/VRLayerChild.cpp
deleted file mode 100644
index cffe9c1f1..000000000
--- a/gfx/vr/ipc/VRLayerChild.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VRLayerChild.h"
-#include "GLScreenBuffer.h"
-#include "mozilla/layers/TextureClientSharedSurface.h"
-#include "SharedSurface.h"                // for SharedSurface
-#include "SharedSurfaceGL.h"              // for SharedSurface
-#include "mozilla/layers/LayersMessages.h" // for TimedTexture
-#include "nsICanvasRenderingContextInternal.h"
-#include "mozilla/dom/HTMLCanvasElement.h"
-
-namespace mozilla {
-namespace gfx {
-
-VRLayerChild::VRLayerChild(uint32_t aVRDisplayID, VRManagerChild* aVRManagerChild)
-  : mVRDisplayID(aVRDisplayID)
-  , mCanvasElement(nullptr)
-  , mShSurfClient(nullptr)
-  , mFront(nullptr)
-{
-  MOZ_COUNT_CTOR(VRLayerChild);
-}
-
-VRLayerChild::~VRLayerChild()
-{
-  if (mCanvasElement) {
-    mCanvasElement->StopVRPresentation();
-  }
-
-  ClearSurfaces();
-
-  MOZ_COUNT_DTOR(VRLayerChild);
-}
-
-void
-VRLayerChild::Initialize(dom::HTMLCanvasElement* aCanvasElement)
-{
-  MOZ_ASSERT(aCanvasElement);
-  mCanvasElement = aCanvasElement;
-  mCanvasElement->StartVRPresentation();
-
-  VRManagerChild *vrmc = VRManagerChild::Get();
-  vrmc->RunFrameRequestCallbacks();
-}
-
-void
-VRLayerChild::SubmitFrame()
-{
-  if (!mCanvasElement) {
-    return;
-  }
-
-  mShSurfClient = mCanvasElement->GetVRFrame();
-  if (!mShSurfClient) {
-    return;
-  }
-
-  gl::SharedSurface* surf = mShSurfClient->Surf();
-  if (surf->mType == gl::SharedSurfaceType::Basic) {
-    gfxCriticalError() << "SharedSurfaceType::Basic not supported for WebVR";
-    return;
-  }
-
-  mFront = mShSurfClient;
-  mShSurfClient = nullptr;
-
-  mFront->SetAddedToCompositableClient();
-  VRManagerChild* vrmc = VRManagerChild::Get();
-  mFront->SyncWithObject(vrmc->GetSyncObject());
-  MOZ_ALWAYS_TRUE(mFront->InitIPDLActor(vrmc));
-
-  SendSubmitFrame(mFront->GetIPDLActor());
-}
-
-void
-VRLayerChild::ClearSurfaces()
-{
-  mFront = nullptr;
-  mShSurfClient = nullptr;
-}
-
-} // namespace gfx
-} // namespace mozilla
diff --git a/gfx/vr/ipc/VRLayerChild.h b/gfx/vr/ipc/VRLayerChild.h
deleted file mode 100644
index df42dddac..000000000
--- a/gfx/vr/ipc/VRLayerChild.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_LAYERCHILD_H
-#define GFX_VR_LAYERCHILD_H
-
-#include "VRManagerChild.h"
-
-#include "mozilla/RefPtr.h"
-#include "mozilla/gfx/PVRLayerChild.h"
-#include "GLContext.h"
-#include "gfxVR.h"
-
-class nsICanvasRenderingContextInternal;
-
-namespace mozilla {
-class WebGLContext;
-namespace dom {
-class HTMLCanvasElement;
-}
-namespace layers {
-class SharedSurfaceTextureClient;
-}
-namespace gl {
-class SurfaceFactory;
-}
-namespace gfx {
-
-class VRLayerChild : public PVRLayerChild {
-  NS_INLINE_DECL_REFCOUNTING(VRLayerChild)
-
-public:
-  VRLayerChild(uint32_t aVRDisplayID, VRManagerChild* aVRManagerChild);
-  void Initialize(dom::HTMLCanvasElement* aCanvasElement);
-  void SubmitFrame();
-
-protected:
-  virtual ~VRLayerChild();
-  void ClearSurfaces();
-
-  uint32_t mVRDisplayID;
-
-  RefPtr<dom::HTMLCanvasElement> mCanvasElement;
-  RefPtr<layers::SharedSurfaceTextureClient> mShSurfClient;
-  RefPtr<layers::TextureClient> mFront;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif
diff --git a/gfx/vr/ipc/VRLayerParent.cpp b/gfx/vr/ipc/VRLayerParent.cpp
deleted file mode 100644
index 6c6980817..000000000
--- a/gfx/vr/ipc/VRLayerParent.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-
-#include "VRLayerParent.h"
-#include "mozilla/Unused.h"
-
-namespace mozilla {
-namespace gfx {
-
-VRLayerParent::VRLayerParent(uint32_t aVRDisplayID, const Rect& aLeftEyeRect, const Rect& aRightEyeRect)
-  : mIPCOpen(true)
-  , mVRDisplayID(aVRDisplayID)
-  , mLeftEyeRect(aLeftEyeRect)
-  , mRightEyeRect(aRightEyeRect)
-{
-  MOZ_COUNT_CTOR(VRLayerParent);
-}
-
-VRLayerParent::~VRLayerParent()
-{
-  MOZ_COUNT_DTOR(VRLayerParent);
-}
-
-bool
-VRLayerParent::RecvDestroy()
-{
-  Destroy();
-  return true;
-}
-
-void
-VRLayerParent::ActorDestroy(ActorDestroyReason aWhy)
-{
-  mIPCOpen = false;
-}
-
-void
-VRLayerParent::Destroy()
-{
-  if (mIPCOpen) {
-    Unused << PVRLayerParent::Send__delete__(this);
-  }
-}
-
-bool
-VRLayerParent::RecvSubmitFrame(PTextureParent* texture)
-{
-  VRManager* vm = VRManager::Get();
-  vm->SubmitFrame(this, texture, mLeftEyeRect, mRightEyeRect);
-
-  return true;
-}
-
-
-} // namespace gfx
-} // namespace mozilla
diff --git a/gfx/vr/ipc/VRLayerParent.h b/gfx/vr/ipc/VRLayerParent.h
deleted file mode 100644
index bd69c9546..000000000
--- a/gfx/vr/ipc/VRLayerParent.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_VR_LAYERPARENT_H
-#define GFX_VR_LAYERPARENT_H
-
-#include "VRManager.h"
-
-#include "mozilla/RefPtr.h"
-#include "mozilla/gfx/PVRLayerParent.h"
-#include "gfxVR.h"
-
-namespace mozilla {
-namespace gfx {
-
-class VRLayerParent : public PVRLayerParent {
-  NS_INLINE_DECL_REFCOUNTING(VRLayerParent)
-
-public:
-  VRLayerParent(uint32_t aVRDisplayID, const Rect& aLeftEyeRect, const Rect& aRightEyeRect);
-  virtual bool RecvSubmitFrame(PTextureParent* texture) override;
-  virtual bool RecvDestroy() override;
-  uint32_t GetDisplayID() const { return mVRDisplayID; }
-protected:
-  virtual void ActorDestroy(ActorDestroyReason aWhy) override;
-
-  virtual ~VRLayerParent();
-  void Destroy();
-
-  bool mIPCOpen;
-
-  uint32_t mVRDisplayID;
-  gfx::IntSize mSize;
-  gfx::Rect mLeftEyeRect;
-  gfx::Rect mRightEyeRect;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif
diff --git a/gfx/vr/ipc/VRManagerChild.cpp b/gfx/vr/ipc/VRManagerChild.cpp
deleted file mode 100644
index 70ced86c3..000000000
--- a/gfx/vr/ipc/VRManagerChild.cpp
+++ /dev/null
@@ -1,593 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VRManagerChild.h"
-#include "VRManagerParent.h"
-#include "VRDisplayClient.h"
-#include "nsGlobalWindow.h"
-#include "mozilla/StaticPtr.h"
-#include "mozilla/layers/CompositorThread.h" // for CompositorThread
-#include "mozilla/dom/Navigator.h"
-#include "mozilla/dom/VREventObserver.h"
-#include "mozilla/dom/WindowBinding.h" // for FrameRequestCallback
-#include "mozilla/dom/ContentChild.h"
-#include "mozilla/layers/TextureClient.h"
-#include "nsContentUtils.h"
-
-#ifdef MOZ_GAMEPAD
-#include "mozilla/dom/GamepadManager.h"
-#endif
-
-using layers::TextureClient;
-
-namespace {
-const nsTArray<RefPtr<dom::VREventObserver>>::index_type kNoIndex =
-  nsTArray<RefPtr<dom::VREventObserver> >::NoIndex;
-} // namespace
-
-namespace mozilla {
-namespace gfx {
-
-static StaticRefPtr<VRManagerChild> sVRManagerChildSingleton;
-static StaticRefPtr<VRManagerParent> sVRManagerParentSingleton;
-
-void ReleaseVRManagerParentSingleton() {
-  sVRManagerParentSingleton = nullptr;
-}
-
-VRManagerChild::VRManagerChild()
-  : TextureForwarder()
-  , mDisplaysInitialized(false)
-  , mInputFrameID(-1)
-  , mMessageLoop(MessageLoop::current())
-  , mFrameRequestCallbackCounter(0)
-  , mBackend(layers::LayersBackend::LAYERS_NONE)
-{
-  MOZ_COUNT_CTOR(VRManagerChild);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mStartTimeStamp = TimeStamp::Now();
-}
-
-VRManagerChild::~VRManagerChild()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_COUNT_DTOR(VRManagerChild);
-}
-
-/*static*/ void
-VRManagerChild::IdentifyTextureHost(const TextureFactoryIdentifier& aIdentifier)
-{
-  if (sVRManagerChildSingleton) {
-    sVRManagerChildSingleton->mBackend = aIdentifier.mParentBackend;
-    sVRManagerChildSingleton->mSyncObject = SyncObject::CreateSyncObject(aIdentifier.mSyncHandle);
-  }
-}
-
-layers::LayersBackend
-VRManagerChild::GetBackendType() const
-{
-  return mBackend;
-}
-
-/*static*/ VRManagerChild*
-VRManagerChild::Get()
-{
-  MOZ_ASSERT(sVRManagerChildSingleton);
-  return sVRManagerChildSingleton;
-}
-
-/* static */ bool
-VRManagerChild::IsCreated()
-{
-  return !!sVRManagerChildSingleton;
-}
-
-/* static */ bool
-VRManagerChild::InitForContent(Endpoint<PVRManagerChild>&& aEndpoint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(!sVRManagerChildSingleton);
-
-  RefPtr<VRManagerChild> child(new VRManagerChild());
-  if (!aEndpoint.Bind(child)) {
-    NS_RUNTIMEABORT("Couldn't Open() Compositor channel.");
-    return false;
-  }
-  sVRManagerChildSingleton = child;
-  return true;
-}
-
-/* static */ bool
-VRManagerChild::ReinitForContent(Endpoint<PVRManagerChild>&& aEndpoint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  ShutDown();
-
-  return InitForContent(Move(aEndpoint));
-}
-
-/*static*/ void
-VRManagerChild::InitSameProcess()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(!sVRManagerChildSingleton);
-
-  sVRManagerChildSingleton = new VRManagerChild();
-  sVRManagerParentSingleton = VRManagerParent::CreateSameProcess();
-  sVRManagerChildSingleton->Open(sVRManagerParentSingleton->GetIPCChannel(),
-                                 mozilla::layers::CompositorThreadHolder::Loop(),
-                                 mozilla::ipc::ChildSide);
-}
-
-/* static */ void
-VRManagerChild::InitWithGPUProcess(Endpoint<PVRManagerChild>&& aEndpoint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(!sVRManagerChildSingleton);
-
-  sVRManagerChildSingleton = new VRManagerChild();
-  if (!aEndpoint.Bind(sVRManagerChildSingleton)) {
-    NS_RUNTIMEABORT("Couldn't Open() Compositor channel.");
-    return;
-  }
-}
-
-/*static*/ void
-VRManagerChild::ShutDown()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  if (sVRManagerChildSingleton) {
-    sVRManagerChildSingleton->Destroy();
-    sVRManagerChildSingleton = nullptr;
-  }
-}
-
-/*static*/ void
-VRManagerChild::DeferredDestroy(RefPtr<VRManagerChild> aVRManagerChild)
-{
-  aVRManagerChild->Close();
-}
-
-void
-VRManagerChild::Destroy()
-{
-  mTexturesWaitingRecycled.Clear();
-
-  // Keep ourselves alive until everything has been shut down
-  RefPtr<VRManagerChild> selfRef = this;
-
-  // The DeferredDestroyVRManager task takes ownership of
-  // the VRManagerChild and will release it when it runs.
-  MessageLoop::current()->PostTask(
-             NewRunnableFunction(DeferredDestroy, selfRef));
-}
-
-layers::PTextureChild*
-VRManagerChild::AllocPTextureChild(const SurfaceDescriptor&,
-                                   const LayersBackend&,
-                                   const TextureFlags&,
-                                   const uint64_t&)
-{
-  return TextureClient::CreateIPDLActor();
-}
-
-bool
-VRManagerChild::DeallocPTextureChild(PTextureChild* actor)
-{
-  return TextureClient::DestroyIPDLActor(actor);
-}
-
-PVRLayerChild*
-VRManagerChild::AllocPVRLayerChild(const uint32_t& aDisplayID,
-                                   const float& aLeftEyeX,
-                                   const float& aLeftEyeY,
-                                   const float& aLeftEyeWidth,
-                                   const float& aLeftEyeHeight,
-                                   const float& aRightEyeX,
-                                   const float& aRightEyeY,
-                                   const float& aRightEyeWidth,
-                                   const float& aRightEyeHeight)
-{
-  RefPtr<VRLayerChild> layer = new VRLayerChild(aDisplayID, this);
-  return layer.forget().take();
-}
-
-bool
-VRManagerChild::DeallocPVRLayerChild(PVRLayerChild* actor)
-{
-  delete actor;
-  return true;
-}
-
-void
-VRManagerChild::UpdateDisplayInfo(nsTArray<VRDisplayInfo>& aDisplayUpdates)
-{
-  bool bDisplayConnected = false;
-  bool bDisplayDisconnected = false;
-
-  // Check if any displays have been disconnected
-  for (auto& display : mDisplays) {
-    bool found = false;
-    for (auto& displayUpdate : aDisplayUpdates) {
-      if (display->GetDisplayInfo().GetDisplayID() == displayUpdate.GetDisplayID()) {
-        found = true;
-        break;
-      }
-    }
-    if (!found) {
-      display->NotifyDisconnected();
-      bDisplayDisconnected = true;
-    }
-  }
-
-  // mDisplays could be a hashed container for more scalability, but not worth
-  // it now as we expect < 10 entries.
-  nsTArray<RefPtr<VRDisplayClient>> displays;
-  for (VRDisplayInfo& displayUpdate : aDisplayUpdates) {
-    bool isNewDisplay = true;
-    for (auto& display : mDisplays) {
-      const VRDisplayInfo& prevInfo = display->GetDisplayInfo();
-      if (prevInfo.GetDisplayID() == displayUpdate.GetDisplayID()) {
-        if (displayUpdate.GetIsConnected() && !prevInfo.GetIsConnected()) {
-          bDisplayConnected = true;
-        }
-        if (!displayUpdate.GetIsConnected() && prevInfo.GetIsConnected()) {
-          bDisplayDisconnected = true;
-        }
-        display->UpdateDisplayInfo(displayUpdate);
-        displays.AppendElement(display);
-        isNewDisplay = false;
-        break;
-      }
-    }
-    if (isNewDisplay) {
-      displays.AppendElement(new VRDisplayClient(displayUpdate));
-      bDisplayConnected = true;
-    }
-  }
-
-  mDisplays = displays;
-
-  if (bDisplayConnected) {
-    FireDOMVRDisplayConnectEvent();
-  }
-  if (bDisplayDisconnected) {
-    FireDOMVRDisplayDisconnectEvent();
-  }
-
-  mDisplaysInitialized = true;
-}
-
-bool
-VRManagerChild::RecvUpdateDisplayInfo(nsTArray<VRDisplayInfo>&& aDisplayUpdates)
-{
-  UpdateDisplayInfo(aDisplayUpdates);
-  for (auto& windowId : mNavigatorCallbacks) {
-    /** We must call NotifyVRDisplaysUpdated for every
-     * window's Navigator in mNavigatorCallbacks to ensure that
-     * the promise returned by Navigator.GetVRDevices
-     * can resolve.  This must happen even if no changes
-     * to VRDisplays have been detected here.
-     */
-    nsGlobalWindow* window = nsGlobalWindow::GetInnerWindowWithId(windowId);
-    if (!window) {
-      continue;
-    }
-    ErrorResult result;
-    dom::Navigator* nav = window->GetNavigator(result);
-    if (NS_WARN_IF(result.Failed())) {
-      continue;
-    }
-    nav->NotifyVRDisplaysUpdated();
-  }
-  mNavigatorCallbacks.Clear();
-  return true;
-}
-
-bool
-VRManagerChild::GetVRDisplays(nsTArray<RefPtr<VRDisplayClient>>& aDisplays)
-{
-  if (!mDisplaysInitialized) {
-    /**
-     * If we haven't received any asynchronous callback after requesting
-     * display enumeration with RefreshDisplays, get the existing displays
-     * that have already been enumerated by other VRManagerChild instances.
-     */
-    nsTArray<VRDisplayInfo> displays;
-    Unused << SendGetDisplays(&displays);
-    UpdateDisplayInfo(displays);
-  }
-  aDisplays = mDisplays;
-  return true;
-}
-
-bool
-VRManagerChild::RefreshVRDisplaysWithCallback(uint64_t aWindowId)
-{
-  bool success = SendRefreshDisplays();
-  if (success) {
-    mNavigatorCallbacks.AppendElement(aWindowId);
-  }
-  return success;
-}
-
-int
-VRManagerChild::GetInputFrameID()
-{
-  return mInputFrameID;
-}
-
-bool
-VRManagerChild::RecvParentAsyncMessages(InfallibleTArray<AsyncParentMessageData>&& aMessages)
-{
-  for (InfallibleTArray<AsyncParentMessageData>::index_type i = 0; i < aMessages.Length(); ++i) {
-    const AsyncParentMessageData& message = aMessages[i];
-
-    switch (message.type()) {
-      case AsyncParentMessageData::TOpNotifyNotUsed: {
-        const OpNotifyNotUsed& op = message.get_OpNotifyNotUsed();
-        NotifyNotUsed(op.TextureId(), op.fwdTransactionId());
-        break;
-      }
-      default:
-        NS_ERROR("unknown AsyncParentMessageData type");
-        return false;
-    }
-  }
-  return true;
-}
-
-PTextureChild*
-VRManagerChild::CreateTexture(const SurfaceDescriptor& aSharedData,
-                              LayersBackend aLayersBackend,
-                              TextureFlags aFlags,
-                              uint64_t aSerial)
-{
-  return SendPTextureConstructor(aSharedData, aLayersBackend, aFlags, aSerial);
-}
-
-void
-VRManagerChild::CancelWaitForRecycle(uint64_t aTextureId)
-{
-  RefPtr<TextureClient> client = mTexturesWaitingRecycled.Get(aTextureId);
-  if (!client) {
-    return;
-  }
-  mTexturesWaitingRecycled.Remove(aTextureId);
-}
-
-void
-VRManagerChild::NotifyNotUsed(uint64_t aTextureId, uint64_t aFwdTransactionId)
-{
-  RefPtr<TextureClient> client = mTexturesWaitingRecycled.Get(aTextureId);
-  if (!client) {
-    return;
-  }
-  mTexturesWaitingRecycled.Remove(aTextureId);
-}
-
-bool
-VRManagerChild::AllocShmem(size_t aSize,
-                           ipc::SharedMemory::SharedMemoryType aType,
-                           ipc::Shmem* aShmem)
-{
-  return PVRManagerChild::AllocShmem(aSize, aType, aShmem);
-}
-
-bool
-VRManagerChild::AllocUnsafeShmem(size_t aSize,
-                                 ipc::SharedMemory::SharedMemoryType aType,
-                                 ipc::Shmem* aShmem)
-{
-  return PVRManagerChild::AllocUnsafeShmem(aSize, aType, aShmem);
-}
-
-bool
-VRManagerChild::DeallocShmem(ipc::Shmem& aShmem)
-{
-  return PVRManagerChild::DeallocShmem(aShmem);
-}
-
-PVRLayerChild*
-VRManagerChild::CreateVRLayer(uint32_t aDisplayID, const Rect& aLeftEyeRect, const Rect& aRightEyeRect)
-{
-  return SendPVRLayerConstructor(aDisplayID,
-                                 aLeftEyeRect.x, aLeftEyeRect.y, aLeftEyeRect.width, aLeftEyeRect.height,
-                                 aRightEyeRect.x, aRightEyeRect.y, aRightEyeRect.width, aRightEyeRect.height);
-}
-
-
-// XXX TODO - VRManagerChild::FrameRequest is the same as nsIDocument::FrameRequest, should we consolodate these?
-struct VRManagerChild::FrameRequest
-{
-  FrameRequest(mozilla::dom::FrameRequestCallback& aCallback,
-    int32_t aHandle) :
-    mCallback(&aCallback),
-    mHandle(aHandle)
-  {}
-
-  // Conversion operator so that we can append these to a
-  // FrameRequestCallbackList
-  operator const RefPtr<mozilla::dom::FrameRequestCallback>& () const {
-    return mCallback;
-  }
-
-  // Comparator operators to allow RemoveElementSorted with an
-  // integer argument on arrays of FrameRequest
-  bool operator==(int32_t aHandle) const {
-    return mHandle == aHandle;
-  }
-  bool operator<(int32_t aHandle) const {
-    return mHandle < aHandle;
-  }
-
-  RefPtr<mozilla::dom::FrameRequestCallback> mCallback;
-  int32_t mHandle;
-};
-
-nsresult
-VRManagerChild::ScheduleFrameRequestCallback(mozilla::dom::FrameRequestCallback& aCallback,
-                                             int32_t *aHandle)
-{
-  if (mFrameRequestCallbackCounter == INT32_MAX) {
-    // Can't increment without overflowing; bail out
-    return NS_ERROR_NOT_AVAILABLE;
-  }
-  int32_t newHandle = ++mFrameRequestCallbackCounter;
-
-  DebugOnly<FrameRequest*> request =
-    mFrameRequestCallbacks.AppendElement(FrameRequest(aCallback, newHandle));
-  NS_ASSERTION(request, "This is supposed to be infallible!");
-
-  *aHandle = newHandle;
-  return NS_OK;
-}
-
-void
-VRManagerChild::CancelFrameRequestCallback(int32_t aHandle)
-{
-  // mFrameRequestCallbacks is stored sorted by handle
-  mFrameRequestCallbacks.RemoveElementSorted(aHandle);
-}
-
-bool
-VRManagerChild::RecvNotifyVSync()
-{
-  for (auto& display : mDisplays) {
-    display->NotifyVsync();
-  }
-
-  return true;
-}
-
-bool
-VRManagerChild::RecvNotifyVRVSync(const uint32_t& aDisplayID)
-{
-  for (auto& display : mDisplays) {
-    if (display->GetDisplayInfo().GetDisplayID() == aDisplayID) {
-      display->NotifyVRVsync();
-    }
-  }
-
-  return true;
-}
-
-bool
-VRManagerChild::RecvGamepadUpdate(const GamepadChangeEvent& aGamepadEvent)
-{
-#ifdef MOZ_GAMEPAD
-  // VRManagerChild could be at other processes, but GamepadManager
-  // only exists at the content process or the same process
-  // in non-e10s mode.
-  MOZ_ASSERT(XRE_IsContentProcess() || IsSameProcess());
-
-  RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
-  if (gamepadManager) {
-    gamepadManager->Update(aGamepadEvent);
-  }
-#endif
-
-  return true;
-}
-
-void
-VRManagerChild::RunFrameRequestCallbacks()
-{
-  TimeStamp nowTime = TimeStamp::Now();
-  mozilla::TimeDuration duration = nowTime - mStartTimeStamp;
-  DOMHighResTimeStamp timeStamp = duration.ToMilliseconds();
-
-
-  nsTArray<FrameRequest> callbacks;
-  callbacks.AppendElements(mFrameRequestCallbacks);
-  mFrameRequestCallbacks.Clear();
-  for (auto& callback : callbacks) {
-    callback.mCallback->Call(timeStamp);
-  }
-}
-
-void
-VRManagerChild::FireDOMVRDisplayConnectEvent()
-{
-  nsContentUtils::AddScriptRunner(NewRunnableMethod(this,
-    &VRManagerChild::FireDOMVRDisplayConnectEventInternal));
-}
-
-void
-VRManagerChild::FireDOMVRDisplayDisconnectEvent()
-{
-  nsContentUtils::AddScriptRunner(NewRunnableMethod(this,
-    &VRManagerChild::FireDOMVRDisplayDisconnectEventInternal));
-}
-
-void
-VRManagerChild::FireDOMVRDisplayPresentChangeEvent()
-{
-  nsContentUtils::AddScriptRunner(NewRunnableMethod(this,
-    &VRManagerChild::FireDOMVRDisplayPresentChangeEventInternal));
-}
-
-void
-VRManagerChild::FireDOMVRDisplayConnectEventInternal()
-{
-  for (auto& listener : mListeners) {
-    listener->NotifyVRDisplayConnect();
-  }
-}
-
-void
-VRManagerChild::FireDOMVRDisplayDisconnectEventInternal()
-{
-  for (auto& listener : mListeners) {
-    listener->NotifyVRDisplayDisconnect();
-  }
-}
-
-void
-VRManagerChild::FireDOMVRDisplayPresentChangeEventInternal()
-{
-  for (auto& listener : mListeners) {
-    listener->NotifyVRDisplayPresentChange();
-  }
-}
-
-void
-VRManagerChild::AddListener(dom::VREventObserver* aObserver)
-{
-  MOZ_ASSERT(aObserver);
-
-  if (mListeners.IndexOf(aObserver) != kNoIndex) {
-    return; // already exists
-  }
-
-  mListeners.AppendElement(aObserver);
-  if (mListeners.Length() == 1) {
-    Unused << SendSetHaveEventListener(true);
-  }
-}
-
-void
-VRManagerChild::RemoveListener(dom::VREventObserver* aObserver)
-{
-  MOZ_ASSERT(aObserver);
-
-  mListeners.RemoveElement(aObserver);
-  if (mListeners.IsEmpty()) {
-    Unused << SendSetHaveEventListener(false);
-  }
-}
-
-void
-VRManagerChild::HandleFatalError(const char* aName, const char* aMsg) const
-{
-  dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aName, aMsg, OtherPid());
-}
-
-} // namespace gfx
-} // namespace mozilla
diff --git a/gfx/vr/ipc/VRManagerChild.h b/gfx/vr/ipc/VRManagerChild.h
deleted file mode 100644
index c898cd2f8..000000000
--- a/gfx/vr/ipc/VRManagerChild.h
+++ /dev/null
@@ -1,185 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef MOZILLA_GFX_VR_VRMANAGERCHILD_H
-#define MOZILLA_GFX_VR_VRMANAGERCHILD_H
-
-#include "mozilla/gfx/PVRManagerChild.h"
-#include "mozilla/ipc/SharedMemory.h"   // for SharedMemory, etc
-#include "ThreadSafeRefcountingWithMainThreadDestruction.h"
-#include "mozilla/layers/ISurfaceAllocator.h"  // for ISurfaceAllocator
-#include "mozilla/layers/LayersTypes.h"  // for LayersBackend
-#include "mozilla/layers/TextureForwarder.h"
-
-namespace mozilla {
-namespace dom {
-class GamepadManager;
-class Navigator;
-class VRDisplay;
-class VREventObserver;
-} // namespace dom
-namespace layers {
-class PCompositableChild;
-class TextureClient;
-}
-namespace gfx {
-class VRLayerChild;
-class VRDisplayClient;
-
-class VRManagerChild : public PVRManagerChild
-                     , public layers::TextureForwarder
-                     , public layers::KnowsCompositor
-{
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRManagerChild, override);
-
-  TextureForwarder* GetTextureForwarder() override { return this; }
-  LayersIPCActor* GetLayersIPCActor() override { return this; }
-
-  static VRManagerChild* Get();
-
-  // Indicate that an observer wants to receive VR events.
-  void AddListener(dom::VREventObserver* aObserver);
-  // Indicate that an observer should no longer receive VR events.
-  void RemoveListener(dom::VREventObserver* aObserver);
-
-  int GetInputFrameID();
-  bool GetVRDisplays(nsTArray<RefPtr<VRDisplayClient> >& aDisplays);
-  bool RefreshVRDisplaysWithCallback(uint64_t aWindowId);
-
-  static void InitSameProcess();
-  static void InitWithGPUProcess(Endpoint<PVRManagerChild>&& aEndpoint);
-  static bool InitForContent(Endpoint<PVRManagerChild>&& aEndpoint);
-  static bool ReinitForContent(Endpoint<PVRManagerChild>&& aEndpoint);
-  static void ShutDown();
-
-  static bool IsCreated();
-
-  virtual PTextureChild* CreateTexture(const SurfaceDescriptor& aSharedData,
-                                       layers::LayersBackend aLayersBackend,
-                                       TextureFlags aFlags,
-                                       uint64_t aSerial) override;
-  virtual void CancelWaitForRecycle(uint64_t aTextureId) override;
-
-  PVRLayerChild* CreateVRLayer(uint32_t aDisplayID, const Rect& aLeftEyeRect, const Rect& aRightEyeRect);
-
-  static void IdentifyTextureHost(const layers::TextureFactoryIdentifier& aIdentifier);
-  layers::LayersBackend GetBackendType() const;
-  layers::SyncObject* GetSyncObject() { return mSyncObject; }
-
-  virtual MessageLoop* GetMessageLoop() const override { return mMessageLoop; }
-  virtual base::ProcessId GetParentPid() const override { return OtherPid(); }
-
-  nsresult ScheduleFrameRequestCallback(mozilla::dom::FrameRequestCallback& aCallback,
-    int32_t *aHandle);
-  void CancelFrameRequestCallback(int32_t aHandle);
-  void RunFrameRequestCallbacks();
-
-  void UpdateDisplayInfo(nsTArray<VRDisplayInfo>& aDisplayUpdates);
-  void FireDOMVRDisplayConnectEvent();
-  void FireDOMVRDisplayDisconnectEvent();
-  void FireDOMVRDisplayPresentChangeEvent();
-
-  virtual void HandleFatalError(const char* aName, const char* aMsg) const override;
-
-protected:
-  explicit VRManagerChild();
-  ~VRManagerChild();
-  void Destroy();
-  static void DeferredDestroy(RefPtr<VRManagerChild> aVRManagerChild);
-
-  virtual PTextureChild* AllocPTextureChild(const SurfaceDescriptor& aSharedData,
-                                            const layers::LayersBackend& aLayersBackend,
-                                            const TextureFlags& aFlags,
-                                            const uint64_t& aSerial) override;
-  virtual bool DeallocPTextureChild(PTextureChild* actor) override;
-
-  virtual PVRLayerChild* AllocPVRLayerChild(const uint32_t& aDisplayID,
-                                            const float& aLeftEyeX,
-                                            const float& aLeftEyeY,
-                                            const float& aLeftEyeWidth,
-                                            const float& aLeftEyeHeight,
-                                            const float& aRightEyeX,
-                                            const float& aRightEyeY,
-                                            const float& aRightEyeWidth,
-                                            const float& aRightEyeHeight) override;
-  virtual bool DeallocPVRLayerChild(PVRLayerChild* actor) override;
-
-  virtual bool RecvUpdateDisplayInfo(nsTArray<VRDisplayInfo>&& aDisplayUpdates) override;
-
-  virtual bool RecvParentAsyncMessages(InfallibleTArray<AsyncParentMessageData>&& aMessages) override;
-
-  virtual bool RecvNotifyVSync() override;
-  virtual bool RecvNotifyVRVSync(const uint32_t& aDisplayID) override;
-  virtual bool RecvGamepadUpdate(const GamepadChangeEvent& aGamepadEvent) override;
-
-  // ShmemAllocator
-
-  virtual bool AllocShmem(size_t aSize,
-                          ipc::SharedMemory::SharedMemoryType aType,
-                          ipc::Shmem* aShmem) override;
-
-  virtual bool AllocUnsafeShmem(size_t aSize,
-                                ipc::SharedMemory::SharedMemoryType aType,
-                                ipc::Shmem* aShmem) override;
-
-  virtual bool DeallocShmem(ipc::Shmem& aShmem) override;
-
-  virtual bool IsSameProcess() const override
-  {
-    return OtherPid() == base::GetCurrentProcId();
-  }
-
-  friend class layers::CompositorBridgeChild;
-
-private:
-
-  void FireDOMVRDisplayConnectEventInternal();
-  void FireDOMVRDisplayDisconnectEventInternal();
-  void FireDOMVRDisplayPresentChangeEventInternal();
-  /**
-  * Notify id of Texture When host side end its use. Transaction id is used to
-  * make sure if there is no newer usage.
-  */
-  void NotifyNotUsed(uint64_t aTextureId, uint64_t aFwdTransactionId);
-
-  nsTArray<RefPtr<VRDisplayClient> > mDisplays;
-  bool mDisplaysInitialized;
-  nsTArray<uint64_t> mNavigatorCallbacks;
-
-  int32_t mInputFrameID;
-
-  MessageLoop* mMessageLoop;
-
-  struct FrameRequest;
-
-  nsTArray<FrameRequest> mFrameRequestCallbacks;
-  /**
-  * The current frame request callback handle
-  */
-  int32_t mFrameRequestCallbackCounter;
-  mozilla::TimeStamp mStartTimeStamp;
-
-  // Array of Weak pointers, instance is owned by nsGlobalWindow::mVREventObserver.
-  nsTArray<dom::VREventObserver*> mListeners;
-
-  /**
-  * Hold TextureClients refs until end of their usages on host side.
-  * It defer calling of TextureClient recycle callback.
-  */
-  nsDataHashtable<nsUint64HashKey, RefPtr<layers::TextureClient> > mTexturesWaitingRecycled;
-
-  layers::LayersBackend mBackend;
-  RefPtr<layers::SyncObject> mSyncObject;
-
-  DISALLOW_COPY_AND_ASSIGN(VRManagerChild);
-};
-
-} // namespace mozilla
-} // namespace gfx
-
-#endif // MOZILLA_GFX_VR_VRMANAGERCHILD_H
diff --git a/gfx/vr/ipc/VRManagerParent.cpp b/gfx/vr/ipc/VRManagerParent.cpp
deleted file mode 100644
index 725d7dd1d..000000000
--- a/gfx/vr/ipc/VRManagerParent.cpp
+++ /dev/null
@@ -1,332 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "VRManagerParent.h"
-#include "ipc/VRLayerParent.h"
-#include "mozilla/gfx/PVRManagerParent.h"
-#include "mozilla/ipc/ProtocolTypes.h"
-#include "mozilla/ipc/ProtocolUtils.h"       // for IToplevelProtocol
-#include "mozilla/TimeStamp.h"               // for TimeStamp
-#include "mozilla/layers/CompositorThread.h"
-#include "mozilla/Unused.h"
-#include "VRManager.h"
-
-namespace mozilla {
-using namespace layers;
-namespace gfx {
-
-VRManagerParent::VRManagerParent(ProcessId aChildProcessId, bool aIsContentChild)
-  : HostIPCAllocator()
-  , mHaveEventListener(false)
-  , mIsContentChild(aIsContentChild)
-{
-  MOZ_COUNT_CTOR(VRManagerParent);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  SetOtherProcessId(aChildProcessId);
-}
-
-VRManagerParent::~VRManagerParent()
-{
-  MOZ_ASSERT(!mVRManagerHolder);
-
-  MOZ_COUNT_DTOR(VRManagerParent);
-}
-
-PTextureParent*
-VRManagerParent::AllocPTextureParent(const SurfaceDescriptor& aSharedData,
-                                     const LayersBackend& aLayersBackend,
-                                     const TextureFlags& aFlags,
-                                     const uint64_t& aSerial)
-{
-  return layers::TextureHost::CreateIPDLActor(this, aSharedData, aLayersBackend, aFlags, aSerial);
-}
-
-bool
-VRManagerParent::DeallocPTextureParent(PTextureParent* actor)
-{
-  return layers::TextureHost::DestroyIPDLActor(actor);
-}
-
-PVRLayerParent*
-VRManagerParent::AllocPVRLayerParent(const uint32_t& aDisplayID,
-                                     const float& aLeftEyeX,
-                                     const float& aLeftEyeY,
-                                     const float& aLeftEyeWidth,
-                                     const float& aLeftEyeHeight,
-                                     const float& aRightEyeX,
-                                     const float& aRightEyeY,
-                                     const float& aRightEyeWidth,
-                                     const float& aRightEyeHeight)
-{
-  RefPtr<VRLayerParent> layer;
-  layer = new VRLayerParent(aDisplayID,
-                            Rect(aLeftEyeX, aLeftEyeY, aLeftEyeWidth, aLeftEyeHeight),
-                            Rect(aRightEyeX, aRightEyeY, aRightEyeWidth, aRightEyeHeight));
-  VRManager* vm = VRManager::Get();
-  RefPtr<gfx::VRDisplayHost> display = vm->GetDisplay(aDisplayID);
-  if (display) {
-    display->AddLayer(layer);
-  }
-  return layer.forget().take();
-}
-
-bool
-VRManagerParent::DeallocPVRLayerParent(PVRLayerParent* actor)
-{
-  gfx::VRLayerParent* layer = static_cast<gfx::VRLayerParent*>(actor);
-
-  VRManager* vm = VRManager::Get();
-  RefPtr<gfx::VRDisplayHost> display = vm->GetDisplay(layer->GetDisplayID());
-  if (display) {
-    display->RemoveLayer(layer);
-  }
-
-  delete actor;
-  return true;
-}
-
-bool
-VRManagerParent::AllocShmem(size_t aSize,
-  ipc::SharedMemory::SharedMemoryType aType,
-  ipc::Shmem* aShmem)
-{
-  return PVRManagerParent::AllocShmem(aSize, aType, aShmem);
-}
-
-bool
-VRManagerParent::AllocUnsafeShmem(size_t aSize,
-  ipc::SharedMemory::SharedMemoryType aType,
-  ipc::Shmem* aShmem)
-{
-  return PVRManagerParent::AllocUnsafeShmem(aSize, aType, aShmem);
-}
-
-void
-VRManagerParent::DeallocShmem(ipc::Shmem& aShmem)
-{
-  PVRManagerParent::DeallocShmem(aShmem);
-}
-
-bool
-VRManagerParent::IsSameProcess() const
-{
-  return OtherPid() == base::GetCurrentProcId();
-}
-
-void
-VRManagerParent::NotifyNotUsed(PTextureParent* aTexture, uint64_t aTransactionId)
-{
-  MOZ_ASSERT_UNREACHABLE("unexpected to be called");
-}
-
-void
-VRManagerParent::SendAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessage)
-{
-  MOZ_ASSERT_UNREACHABLE("unexpected to be called");
-}
-
-base::ProcessId
-VRManagerParent::GetChildProcessId()
-{
-  return OtherPid();
-}
-
-void
-VRManagerParent::RegisterWithManager()
-{
-  VRManager* vm = VRManager::Get();
-  vm->AddVRManagerParent(this);
-  mVRManagerHolder = vm;
-}
-
-void
-VRManagerParent::UnregisterFromManager()
-{
-  VRManager* vm = VRManager::Get();
-  vm->RemoveVRManagerParent(this);
-  mVRManagerHolder = nullptr;
-}
-
-/* static */ bool
-VRManagerParent::CreateForContent(Endpoint<PVRManagerParent>&& aEndpoint)
-{
-  MessageLoop* loop = layers::CompositorThreadHolder::Loop();
-
-  RefPtr<VRManagerParent> vmp = new VRManagerParent(aEndpoint.OtherPid(), true);
-  loop->PostTask(NewRunnableMethod<Endpoint<PVRManagerParent>&&>(
-    vmp, &VRManagerParent::Bind, Move(aEndpoint)));
-
-  return true;
-}
-
-void
-VRManagerParent::Bind(Endpoint<PVRManagerParent>&& aEndpoint)
-{
-  if (!aEndpoint.Bind(this)) {
-    return;
-  }
-  mSelfRef = this;
-
-  RegisterWithManager();
-}
-
-/*static*/ void
-VRManagerParent::RegisterVRManagerInCompositorThread(VRManagerParent* aVRManager)
-{
-  aVRManager->RegisterWithManager();
-}
-
-/*static*/ VRManagerParent*
-VRManagerParent::CreateSameProcess()
-{
-  MessageLoop* loop = mozilla::layers::CompositorThreadHolder::Loop();
-  RefPtr<VRManagerParent> vmp = new VRManagerParent(base::GetCurrentProcId(), false);
-  vmp->mCompositorThreadHolder = layers::CompositorThreadHolder::GetSingleton();
-  vmp->mSelfRef = vmp;
-  loop->PostTask(NewRunnableFunction(RegisterVRManagerInCompositorThread, vmp.get()));
-  return vmp.get();
-}
-
-bool
-VRManagerParent::CreateForGPUProcess(Endpoint<PVRManagerParent>&& aEndpoint)
-{
-  MessageLoop* loop = mozilla::layers::CompositorThreadHolder::Loop();
-
-  RefPtr<VRManagerParent> vmp = new VRManagerParent(aEndpoint.OtherPid(), false);
-  vmp->mCompositorThreadHolder = layers::CompositorThreadHolder::GetSingleton();
-  loop->PostTask(NewRunnableMethod<Endpoint<PVRManagerParent>&&>(
-    vmp, &VRManagerParent::Bind, Move(aEndpoint)));
-  return true;
-}
-
-void
-VRManagerParent::DeferredDestroy()
-{
-  mCompositorThreadHolder = nullptr;
-  mSelfRef = nullptr;
-}
-
-void
-VRManagerParent::ActorDestroy(ActorDestroyReason why)
-{
-  UnregisterFromManager();
-  MessageLoop::current()->PostTask(NewRunnableMethod(this, &VRManagerParent::DeferredDestroy));
-}
-
-void
-VRManagerParent::OnChannelConnected(int32_t aPid)
-{
-  mCompositorThreadHolder = layers::CompositorThreadHolder::GetSingleton();
-}
-
-bool
-VRManagerParent::RecvRefreshDisplays()
-{
-  // This is called to refresh the VR Displays for Navigator.GetVRDevices().
-  // We must pass "true" to VRManager::RefreshVRDisplays()
-  // to ensure that the promise returned by Navigator.GetVRDevices
-  // can resolve even if there are no changes to the VR Displays.
-  VRManager* vm = VRManager::Get();
-  vm->RefreshVRDisplays(true);
-
-  return true;
-}
-
-bool
-VRManagerParent::RecvGetDisplays(nsTArray<VRDisplayInfo> *aDisplays)
-{
-  VRManager* vm = VRManager::Get();
-  vm->GetVRDisplayInfo(*aDisplays);
-  return true;
-}
-
-bool
-VRManagerParent::RecvResetSensor(const uint32_t& aDisplayID)
-{
-  VRManager* vm = VRManager::Get();
-  RefPtr<gfx::VRDisplayHost> display = vm->GetDisplay(aDisplayID);
-  if (display != nullptr) {
-    display->ZeroSensor();
-  }
-
-  return true;
-}
-
-bool
-VRManagerParent::RecvGetSensorState(const uint32_t& aDisplayID, VRHMDSensorState* aState)
-{
-  VRManager* vm = VRManager::Get();
-  RefPtr<gfx::VRDisplayHost> display = vm->GetDisplay(aDisplayID);
-  if (display != nullptr) {
-    *aState = display->GetSensorState();
-  }
-  return true;
-}
-
-bool
-VRManagerParent::RecvGetImmediateSensorState(const uint32_t& aDisplayID, VRHMDSensorState* aState)
-{
-  VRManager* vm = VRManager::Get();
-  RefPtr<gfx::VRDisplayHost> display = vm->GetDisplay(aDisplayID);
-  if (display != nullptr) {
-    *aState = display->GetImmediateSensorState();
-  }
-  return true;
-}
-
-bool
-VRManagerParent::HaveEventListener()
-{
-  return mHaveEventListener;
-}
-
-bool
-VRManagerParent::RecvSetHaveEventListener(const bool& aHaveEventListener)
-{
-  mHaveEventListener = aHaveEventListener;
-  return true;
-}
-
-bool
-VRManagerParent::RecvControllerListenerAdded()
-{
-  VRManager* vm = VRManager::Get();
-  // Ask the connected gamepads to be added to GamepadManager
-  vm->ScanForDevices();
-
-  return true;
-}
-
-bool
-VRManagerParent::RecvControllerListenerRemoved()
-{
-  return true;
-}
-
-bool
-VRManagerParent::RecvGetControllers(nsTArray<VRControllerInfo> *aControllers)
-{
-  VRManager* vm = VRManager::Get();
-  vm->GetVRControllerInfo(*aControllers);
-  return true;
-}
-
-bool
-VRManagerParent::SendGamepadUpdate(const GamepadChangeEvent& aGamepadEvent)
-{
-  // GamepadManager only exists at the content process
-  // or the same process in non-e10s mode.
-  if (mIsContentChild || IsSameProcess()) {
-    return PVRManagerParent::SendGamepadUpdate(aGamepadEvent);
-  } else {
-    return true;
-  }
-}
-
-} // namespace gfx
-} // namespace mozilla
diff --git a/gfx/vr/ipc/VRManagerParent.h b/gfx/vr/ipc/VRManagerParent.h
deleted file mode 100644
index d4611c187..000000000
--- a/gfx/vr/ipc/VRManagerParent.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef MOZILLA_GFX_VR_VRMANAGERPARENT_H
-#define MOZILLA_GFX_VR_VRMANAGERPARENT_H
-
-#include "mozilla/layers/CompositableTransactionParent.h"
-#include "mozilla/layers/CompositorThread.h" // for CompositorThreadHolder
-#include "mozilla/gfx/PVRManagerParent.h" // for PVRManagerParent
-#include "mozilla/gfx/PVRLayerParent.h"   // for PVRLayerParent
-#include "mozilla/ipc/ProtocolUtils.h"    // for IToplevelProtocol
-#include "mozilla/TimeStamp.h"            // for TimeStamp
-#include "gfxVR.h"                        // for VRFieldOfView
-
-namespace mozilla {
-using namespace layers;
-namespace gfx {
-
-class VRManager;
-
-class VRManagerParent final : public PVRManagerParent
-                            , public HostIPCAllocator
-                            , public ShmemAllocator
-{
-public:
-  explicit VRManagerParent(ProcessId aChildProcessId, bool aIsContentChild);
-
-  static VRManagerParent* CreateSameProcess();
-  static bool CreateForGPUProcess(Endpoint<PVRManagerParent>&& aEndpoint);
-  static bool CreateForContent(Endpoint<PVRManagerParent>&& aEndpoint);
-
-  virtual base::ProcessId GetChildProcessId() override;
-
-  // ShmemAllocator
-
-  virtual ShmemAllocator* AsShmemAllocator() override { return this; }
-
-  virtual bool AllocShmem(size_t aSize,
-    ipc::SharedMemory::SharedMemoryType aType,
-    ipc::Shmem* aShmem) override;
-
-  virtual bool AllocUnsafeShmem(size_t aSize,
-    ipc::SharedMemory::SharedMemoryType aType,
-    ipc::Shmem* aShmem) override;
-
-  virtual void DeallocShmem(ipc::Shmem& aShmem) override;
-
-  virtual bool IsSameProcess() const override;
-  bool HaveEventListener();
-
-  virtual void NotifyNotUsed(PTextureParent* aTexture, uint64_t aTransactionId) override;
-  virtual void SendAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessage) override;
-  bool SendGamepadUpdate(const GamepadChangeEvent& aGamepadEvent);
-
-protected:
-  ~VRManagerParent();
-
-  virtual PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData,
-                                              const LayersBackend& aLayersBackend,
-                                              const TextureFlags& aFlags,
-                                              const uint64_t& aSerial) override;
-  virtual bool DeallocPTextureParent(PTextureParent* actor) override;
-
-  virtual PVRLayerParent* AllocPVRLayerParent(const uint32_t& aDisplayID,
-                                              const float& aLeftEyeX,
-                                              const float& aLeftEyeY,
-                                              const float& aLeftEyeWidth,
-                                              const float& aLeftEyeHeight,
-                                              const float& aRightEyeX,
-                                              const float& aRightEyeY,
-                                              const float& aRightEyeWidth,
-                                              const float& aRightEyeHeight) override;
-  virtual bool DeallocPVRLayerParent(PVRLayerParent* actor) override;
-
-  virtual void ActorDestroy(ActorDestroyReason why) override;
-  void OnChannelConnected(int32_t pid) override;
-
-  virtual bool RecvRefreshDisplays() override;
-  virtual bool RecvGetDisplays(nsTArray<VRDisplayInfo> *aDisplays) override;
-  virtual bool RecvResetSensor(const uint32_t& aDisplayID) override;
-  virtual bool RecvGetSensorState(const uint32_t& aDisplayID, VRHMDSensorState* aState) override;
-  virtual bool RecvGetImmediateSensorState(const uint32_t& aDisplayID, VRHMDSensorState* aState) override;
-  virtual bool RecvSetHaveEventListener(const bool& aHaveEventListener) override;
-  virtual bool RecvControllerListenerAdded() override;
-  virtual bool RecvControllerListenerRemoved() override;
-  virtual bool RecvGetControllers(nsTArray<VRControllerInfo> *aControllers) override;
-
-private:
-  void RegisterWithManager();
-  void UnregisterFromManager();
-
-  void Bind(Endpoint<PVRManagerParent>&& aEndpoint);
-
-  static void RegisterVRManagerInCompositorThread(VRManagerParent* aVRManager);
-
-  void DeferredDestroy();
-
-  // This keeps us alive until ActorDestroy(), at which point we do a
-  // deferred destruction of ourselves.
-  RefPtr<VRManagerParent> mSelfRef;
-
-  // Keep the compositor thread alive, until we have destroyed ourselves.
-  RefPtr<layers::CompositorThreadHolder> mCompositorThreadHolder;
-
-  // Keep the VRManager alive, until we have destroyed ourselves.
-  RefPtr<VRManager> mVRManagerHolder;
-  bool mHaveEventListener;
-  bool mIsContentChild;
-};
-
-} // namespace mozilla
-} // namespace gfx
-
-#endif // MOZILLA_GFX_VR_VRMANAGERPARENT_H
diff --git a/gfx/vr/ipc/VRMessageUtils.h b/gfx/vr/ipc/VRMessageUtils.h
deleted file mode 100644
index c066047db..000000000
--- a/gfx/vr/ipc/VRMessageUtils.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et tw=80 : */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_gfx_vr_VRMessageUtils_h
-#define mozilla_gfx_vr_VRMessageUtils_h
-
-#include "ipc/IPCMessageUtils.h"
-#include "mozilla/GfxMessageUtils.h"
-#include "VRManager.h"
-
-#include "gfxVR.h"
-
-namespace IPC {
-
-template<>
-struct ParamTraits<mozilla::gfx::VRDeviceType> :
-  public ContiguousEnumSerializer<mozilla::gfx::VRDeviceType,
-                                  mozilla::gfx::VRDeviceType(0),
-                                  mozilla::gfx::VRDeviceType(mozilla::gfx::VRDeviceType::NumVRDeviceTypes)> {};
-
-template<>
-struct ParamTraits<mozilla::gfx::VRDisplayCapabilityFlags> :
-  public BitFlagsEnumSerializer<mozilla::gfx::VRDisplayCapabilityFlags,
-                                mozilla::gfx::VRDisplayCapabilityFlags::Cap_All> {};
-
-template <>
-struct ParamTraits<mozilla::gfx::VRDisplayInfo>
-{
-  typedef mozilla::gfx::VRDisplayInfo paramType;
-
-  static void Write(Message* aMsg, const paramType& aParam)
-  {
-    WriteParam(aMsg, aParam.mType);
-    WriteParam(aMsg, aParam.mDisplayID);
-    WriteParam(aMsg, aParam.mDisplayName);
-    WriteParam(aMsg, aParam.mCapabilityFlags);
-    WriteParam(aMsg, aParam.mEyeResolution);
-    WriteParam(aMsg, aParam.mIsConnected);
-    WriteParam(aMsg, aParam.mIsPresenting);
-    WriteParam(aMsg, aParam.mStageSize);
-    WriteParam(aMsg, aParam.mSittingToStandingTransform);
-    for (int i = 0; i < mozilla::gfx::VRDisplayInfo::NumEyes; i++) {
-      WriteParam(aMsg, aParam.mEyeFOV[i]);
-      WriteParam(aMsg, aParam.mEyeTranslation[i]);
-    }
-  }
-
-  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
-  {
-    if (!ReadParam(aMsg, aIter, &(aResult->mType)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mDisplayID)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mDisplayName)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mCapabilityFlags)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mEyeResolution)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mIsConnected)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mIsPresenting)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mStageSize)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mSittingToStandingTransform))) {
-      return false;
-    }
-    for (int i = 0; i < mozilla::gfx::VRDisplayInfo::NumEyes; i++) {
-      if (!ReadParam(aMsg, aIter, &(aResult->mEyeFOV[i])) ||
-          !ReadParam(aMsg, aIter, &(aResult->mEyeTranslation[i]))) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-};
-
-template <>
-struct ParamTraits<mozilla::gfx::VRHMDSensorState>
-{
-  typedef mozilla::gfx::VRHMDSensorState paramType;
-
-  static void Write(Message* aMsg, const paramType& aParam)
-  {
-    WriteParam(aMsg, aParam.timestamp);
-    WriteParam(aMsg, aParam.inputFrameID);
-    WriteParam(aMsg, aParam.flags);
-    WriteParam(aMsg, aParam.orientation[0]);
-    WriteParam(aMsg, aParam.orientation[1]);
-    WriteParam(aMsg, aParam.orientation[2]);
-    WriteParam(aMsg, aParam.orientation[3]);
-    WriteParam(aMsg, aParam.position[0]);
-    WriteParam(aMsg, aParam.position[1]);
-    WriteParam(aMsg, aParam.position[2]);
-    WriteParam(aMsg, aParam.angularVelocity[0]);
-    WriteParam(aMsg, aParam.angularVelocity[1]);
-    WriteParam(aMsg, aParam.angularVelocity[2]);
-    WriteParam(aMsg, aParam.angularAcceleration[0]);
-    WriteParam(aMsg, aParam.angularAcceleration[1]);
-    WriteParam(aMsg, aParam.angularAcceleration[2]);
-    WriteParam(aMsg, aParam.linearVelocity[0]);
-    WriteParam(aMsg, aParam.linearVelocity[1]);
-    WriteParam(aMsg, aParam.linearVelocity[2]);
-    WriteParam(aMsg, aParam.linearAcceleration[0]);
-    WriteParam(aMsg, aParam.linearAcceleration[1]);
-    WriteParam(aMsg, aParam.linearAcceleration[2]);
-  }
-
-  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
-  {
-    if (!ReadParam(aMsg, aIter, &(aResult->timestamp)) ||
-        !ReadParam(aMsg, aIter, &(aResult->inputFrameID)) ||
-        !ReadParam(aMsg, aIter, &(aResult->flags)) ||
-        !ReadParam(aMsg, aIter, &(aResult->orientation[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->orientation[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->orientation[2])) ||
-        !ReadParam(aMsg, aIter, &(aResult->orientation[3])) ||
-        !ReadParam(aMsg, aIter, &(aResult->position[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->position[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->position[2])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularVelocity[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularVelocity[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularVelocity[2])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularAcceleration[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularAcceleration[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->angularAcceleration[2])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearVelocity[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearVelocity[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearVelocity[2])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearAcceleration[0])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearAcceleration[1])) ||
-        !ReadParam(aMsg, aIter, &(aResult->linearAcceleration[2]))) {
-      return false;
-    }
-    return true;
-  }
-};
-
-template <>
-struct ParamTraits<mozilla::gfx::VRFieldOfView>
-{
-  typedef mozilla::gfx::VRFieldOfView paramType;
-
-  static void Write(Message* aMsg, const paramType& aParam)
-  {
-    WriteParam(aMsg, aParam.upDegrees);
-    WriteParam(aMsg, aParam.rightDegrees);
-    WriteParam(aMsg, aParam.downDegrees);
-    WriteParam(aMsg, aParam.leftDegrees);
-  }
-
-  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
-  {
-    if (!ReadParam(aMsg, aIter, &(aResult->upDegrees)) ||
-        !ReadParam(aMsg, aIter, &(aResult->rightDegrees)) ||
-        !ReadParam(aMsg, aIter, &(aResult->downDegrees)) ||
-        !ReadParam(aMsg, aIter, &(aResult->leftDegrees))) {
-      return false;
-    }
-
-    return true;
-  }
-};
-
-template <>
-struct ParamTraits<mozilla::gfx::VRControllerInfo>
-{
-  typedef mozilla::gfx::VRControllerInfo paramType;
-
-  static void Write(Message* aMsg, const paramType& aParam)
-  {
-    WriteParam(aMsg, aParam.mType);
-    WriteParam(aMsg, aParam.mControllerID);
-    WriteParam(aMsg, aParam.mControllerName);
-    WriteParam(aMsg, aParam.mMappingType);
-    WriteParam(aMsg, aParam.mNumButtons);
-    WriteParam(aMsg, aParam.mNumAxes);
-  }
-
-  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
-  {
-    if (!ReadParam(aMsg, aIter, &(aResult->mType)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mControllerID)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mControllerName)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mMappingType)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mNumButtons)) ||
-        !ReadParam(aMsg, aIter, &(aResult->mNumAxes))) {
-      return false;
-    }
-
-    return true;
-  }
-};
-} // namespace IPC
-
-#endif // mozilla_gfx_vr_VRMessageUtils_h
diff --git a/gfx/vr/moz.build b/gfx/vr/moz.build
deleted file mode 100644
index 5ab724d4a..000000000
--- a/gfx/vr/moz.build
+++ /dev/null
@@ -1,71 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-EXPORTS += [
-    'gfxVR.h',
-    'ipc/VRLayerChild.h',
-    'ipc/VRManagerChild.h',
-    'ipc/VRManagerParent.h',
-    'ipc/VRMessageUtils.h',
-    'VRDisplayClient.h',
-    'VRDisplayPresentation.h',
-    'VRManager.h',
-]
-
-LOCAL_INCLUDES += [
-    '/dom/base',
-    '/gfx/layers/d3d11',
-    '/gfx/thebes',
-]
-
-UNIFIED_SOURCES += [
-    'gfxVR.cpp',
-    'gfxVROpenVR.cpp',
-    'gfxVROSVR.cpp',
-    'ipc/VRLayerChild.cpp',
-    'ipc/VRLayerParent.cpp',
-    'ipc/VRManagerChild.cpp',
-    'ipc/VRManagerParent.cpp',
-    'VRDisplayClient.cpp',
-    'VRDisplayHost.cpp',
-    'VRDisplayPresentation.cpp',
-    'VRManager.cpp',
-]
-
-if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
-    SOURCES += [
-        'gfxVROculus.cpp',
-    ]
-
-IPDL_SOURCES = [
-    'ipc/PVRLayer.ipdl',
-    'ipc/PVRManager.ipdl',
-]
-
-# For building with the real SDK instead of our local hack
-#SOURCES += [
-#    'OVR_CAPI_Util.cpp',
-#    'OVR_CAPIShim.c',
-#    'OVR_StereoProjection.cpp',
-#]
-#
-#CXXFLAGS += ["-Ic:/proj/ovr/OculusSDK-0.6.0-beta/LibOVR/Include"]
-#CFLAGS += ["-Ic:/proj/ovr/OculusSDK-0.6.0-beta/LibOVR/Include"]
-
-CXXFLAGS += CONFIG['MOZ_CAIRO_CFLAGS']
-CXXFLAGS += CONFIG['TK_CFLAGS']
-CFLAGS += CONFIG['MOZ_CAIRO_CFLAGS']
-CFLAGS += CONFIG['TK_CFLAGS']
-
-include('/ipc/chromium/chromium-config.mozbuild')
-
-FINAL_LIBRARY = 'xul'
-
-# This is intended as a temporary hack to enable VS2015 builds.
-if CONFIG['_MSC_VER']:
-    # ovr_capi_dynamic.h '<unnamed-tag>': Alignment specifier is less than
-    # actual alignment (8), and will be ignored
-    CXXFLAGS += ['-wd4359']
diff --git a/gfx/vr/openvr/LICENSE b/gfx/vr/openvr/LICENSE
deleted file mode 100644
index ee83337d7..000000000
--- a/gfx/vr/openvr/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-Copyright (c) 2015, Valve Corporation
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-this list of conditions and the following disclaimer in the documentation and/or
-other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors
-may be used to endorse or promote products derived from this software without
-specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/gfx/vr/openvr/README b/gfx/vr/openvr/README
deleted file mode 100644
index 5e67e5a3a..000000000
--- a/gfx/vr/openvr/README
+++ /dev/null
@@ -1,2 +0,0 @@
-See https://github.com/ValveSoftware/openvr/
-
diff --git a/gfx/vr/openvr/openvr.h b/gfx/vr/openvr/openvr.h
deleted file mode 100644
index deb3142fd..000000000
--- a/gfx/vr/openvr/openvr.h
+++ /dev/null
@@ -1,3352 +0,0 @@
-#pragma once
-
-// openvr.h
-//========= Copyright Valve Corporation ============//
-// Dynamically generated file. Do not modify this file directly.
-
-#ifndef _OPENVR_API
-#define _OPENVR_API
-
-#include <stdint.h>
-
-
-
-// vrtypes.h
-#ifndef _INCLUDE_VRTYPES_H
-#define _INCLUDE_VRTYPES_H 
-
-namespace vr
-{
-
-#if defined(__linux__) || defined(__APPLE__) 
-	// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
-	// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
-	// The 64-bit version of gcc has the alignment requirement for these types set to
-	// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
-	// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
-	#pragma pack( push, 4 )
-#else
-	#pragma pack( push, 8 )
-#endif
-
-typedef void* glSharedTextureHandle_t;
-typedef int32_t glInt_t;
-typedef uint32_t glUInt_t;
-
-// right-handed system
-// +y is up
-// +x is to the right
-// -z is going away from you
-// Distance unit is  meters
-struct HmdMatrix34_t
-{
-	float m[3][4];
-};
-
-struct HmdMatrix44_t
-{
-	float m[4][4];
-};
-
-struct HmdVector3_t
-{
-	float v[3];
-};
-
-struct HmdVector4_t
-{
-	float v[4];
-};
-
-struct HmdVector3d_t
-{
-	double v[3];
-};
-
-struct HmdVector2_t
-{
-	float v[2];
-};
-
-struct HmdQuaternion_t
-{
-	double w, x, y, z;
-};
-
-struct HmdColor_t
-{
-	float r, g, b, a;
-};
-
-struct HmdQuad_t
-{
-	HmdVector3_t vCorners[ 4 ];
-};
-
-struct HmdRect2_t
-{
-	HmdVector2_t vTopLeft;
-	HmdVector2_t vBottomRight;
-};
-
-/** Used to return the post-distortion UVs for each color channel. 
-* UVs range from 0 to 1 with 0,0 in the upper left corner of the 
-* source render target. The 0,0 to 1,1 range covers a single eye. */
-struct DistortionCoordinates_t
-{
-	float rfRed[2];
-	float rfGreen[2];
-	float rfBlue[2];
-};
-
-enum EVREye
-{
-	Eye_Left = 0,
-	Eye_Right = 1
-};
-
-enum EGraphicsAPIConvention
-{
-	API_DirectX = 0, // Normalized Z goes from 0 at the viewer to 1 at the far clip plane
-	API_OpenGL = 1,  // Normalized Z goes from 1 at the viewer to -1 at the far clip plane
-};
-
-enum EColorSpace
-{
-	ColorSpace_Auto = 0,	// Assumes 'gamma' for 8-bit per component formats, otherwise 'linear'.  This mirrors the DXGI formats which have _SRGB variants.
-	ColorSpace_Gamma = 1,	// Texture data can be displayed directly on the display without any conversion (a.k.a. display native format).
-	ColorSpace_Linear = 2,	// Same as gamma but has been converted to a linear representation using DXGI's sRGB conversion algorithm.
-};
-
-struct Texture_t
-{
-	void* handle; // Native d3d texture pointer or GL texture id.
-	EGraphicsAPIConvention eType;
-	EColorSpace eColorSpace;
-};
-
-enum ETrackingResult
-{
-	TrackingResult_Uninitialized			= 1,
-
-	TrackingResult_Calibrating_InProgress	= 100,
-	TrackingResult_Calibrating_OutOfRange	= 101,
-
-	TrackingResult_Running_OK				= 200,
-	TrackingResult_Running_OutOfRange		= 201,
-};
-
-static const uint32_t k_unTrackingStringSize = 32;
-static const uint32_t k_unMaxDriverDebugResponseSize = 32768;
-
-/** Used to pass device IDs to API calls */
-typedef uint32_t TrackedDeviceIndex_t;
-static const uint32_t k_unTrackedDeviceIndex_Hmd = 0;
-static const uint32_t k_unMaxTrackedDeviceCount = 16;
-static const uint32_t k_unTrackedDeviceIndexOther = 0xFFFFFFFE;
-static const uint32_t k_unTrackedDeviceIndexInvalid = 0xFFFFFFFF;
-
-/** Describes what kind of object is being tracked at a given ID */
-enum ETrackedDeviceClass
-{
-	TrackedDeviceClass_Invalid = 0,				// the ID was not valid.
-	TrackedDeviceClass_HMD = 1,					// Head-Mounted Displays
-	TrackedDeviceClass_Controller = 2,			// Tracked controllers
-	TrackedDeviceClass_TrackingReference = 4,	// Camera and base stations that serve as tracking reference points
-
-	TrackedDeviceClass_Other = 1000,
-};
-
-
-/** Describes what specific role associated with a tracked device */
-enum ETrackedControllerRole
-{
-	TrackedControllerRole_Invalid = 0,					// Invalid value for controller type
-	TrackedControllerRole_LeftHand = 1,					// Tracked device associated with the left hand
-	TrackedControllerRole_RightHand = 2,				// Tracked device associated with the right hand
-};
-
-
-/** describes a single pose for a tracked object */
-struct TrackedDevicePose_t
-{
-	HmdMatrix34_t mDeviceToAbsoluteTracking;
-	HmdVector3_t vVelocity;				// velocity in tracker space in m/s
-	HmdVector3_t vAngularVelocity;		// angular velocity in radians/s (?)
-	ETrackingResult eTrackingResult;
-	bool bPoseIsValid;
-
-	// This indicates that there is a device connected for this spot in the pose array.
-	// It could go from true to false if the user unplugs the device.
-	bool bDeviceIsConnected;
-};
-
-/** Identifies which style of tracking origin the application wants to use
-* for the poses it is requesting */
-enum ETrackingUniverseOrigin
-{
-	TrackingUniverseSeated = 0,		// Poses are provided relative to the seated zero pose
-	TrackingUniverseStanding = 1,	// Poses are provided relative to the safe bounds configured by the user
-	TrackingUniverseRawAndUncalibrated = 2,	// Poses are provided in the coordinate system defined by the driver. You probably don't want this one.
-};
-
-
-/** Each entry in this enum represents a property that can be retrieved about a
-* tracked device. Many fields are only valid for one ETrackedDeviceClass. */
-enum ETrackedDeviceProperty
-{
-	// general properties that apply to all device classes
-	Prop_TrackingSystemName_String				= 1000,
-	Prop_ModelNumber_String						= 1001,
-	Prop_SerialNumber_String					= 1002,
-	Prop_RenderModelName_String					= 1003,
-	Prop_WillDriftInYaw_Bool					= 1004,
-	Prop_ManufacturerName_String				= 1005,
-	Prop_TrackingFirmwareVersion_String			= 1006,
-	Prop_HardwareRevision_String				= 1007,
-	Prop_AllWirelessDongleDescriptions_String	= 1008,
-	Prop_ConnectedWirelessDongle_String			= 1009,
-	Prop_DeviceIsWireless_Bool					= 1010,
-	Prop_DeviceIsCharging_Bool					= 1011,
-	Prop_DeviceBatteryPercentage_Float			= 1012, // 0 is empty, 1 is full
-	Prop_StatusDisplayTransform_Matrix34		= 1013,
-	Prop_Firmware_UpdateAvailable_Bool			= 1014,
-	Prop_Firmware_ManualUpdate_Bool				= 1015,
-	Prop_Firmware_ManualUpdateURL_String		= 1016,
-	Prop_HardwareRevision_Uint64				= 1017,
-	Prop_FirmwareVersion_Uint64					= 1018,
-	Prop_FPGAVersion_Uint64						= 1019,
-	Prop_VRCVersion_Uint64						= 1020,
-	Prop_RadioVersion_Uint64					= 1021,
-	Prop_DongleVersion_Uint64					= 1022,
-	Prop_BlockServerShutdown_Bool				= 1023,
-	Prop_CanUnifyCoordinateSystemWithHmd_Bool	= 1024,
-	Prop_ContainsProximitySensor_Bool			= 1025,
-	Prop_DeviceProvidesBatteryStatus_Bool		= 1026,
-	Prop_DeviceCanPowerOff_Bool					= 1027,
-	Prop_Firmware_ProgrammingTarget_String		= 1028,
-	Prop_DeviceClass_Int32						= 1029,
-	Prop_HasCamera_Bool							= 1030,
-	Prop_DriverVersion_String                   = 1031,
-	Prop_Firmware_ForceUpdateRequired_Bool      = 1032,
-
-	// Properties that are unique to TrackedDeviceClass_HMD
-	Prop_ReportsTimeSinceVSync_Bool				= 2000,
-	Prop_SecondsFromVsyncToPhotons_Float		= 2001,
-	Prop_DisplayFrequency_Float					= 2002,
-	Prop_UserIpdMeters_Float					= 2003,
-	Prop_CurrentUniverseId_Uint64				= 2004, 
-	Prop_PreviousUniverseId_Uint64				= 2005, 
-	Prop_DisplayFirmwareVersion_Uint64			= 2006,
-	Prop_IsOnDesktop_Bool						= 2007,
-	Prop_DisplayMCType_Int32					= 2008,
-	Prop_DisplayMCOffset_Float					= 2009,
-	Prop_DisplayMCScale_Float					= 2010,
-	Prop_EdidVendorID_Int32						= 2011,
-	Prop_DisplayMCImageLeft_String              = 2012,
-	Prop_DisplayMCImageRight_String             = 2013,
-	Prop_DisplayGCBlackClamp_Float				= 2014,
-	Prop_EdidProductID_Int32					= 2015,
-	Prop_CameraToHeadTransform_Matrix34			= 2016,
-	Prop_DisplayGCType_Int32					= 2017,
-	Prop_DisplayGCOffset_Float					= 2018,
-	Prop_DisplayGCScale_Float					= 2019,
-	Prop_DisplayGCPrescale_Float				= 2020,
-	Prop_DisplayGCImage_String					= 2021,
-	Prop_LensCenterLeftU_Float					= 2022,
-	Prop_LensCenterLeftV_Float					= 2023,
-	Prop_LensCenterRightU_Float					= 2024,
-	Prop_LensCenterRightV_Float					= 2025,
-	Prop_UserHeadToEyeDepthMeters_Float			= 2026,
-	Prop_CameraFirmwareVersion_Uint64			= 2027,
-	Prop_CameraFirmwareDescription_String		= 2028,
-	Prop_DisplayFPGAVersion_Uint64				= 2029,
-	Prop_DisplayBootloaderVersion_Uint64		= 2030,
-	Prop_DisplayHardwareVersion_Uint64			= 2031,
-	Prop_AudioFirmwareVersion_Uint64			= 2032,
-	Prop_CameraCompatibilityMode_Int32			= 2033,
-	Prop_ScreenshotHorizontalFieldOfViewDegrees_Float = 2034,
-	Prop_ScreenshotVerticalFieldOfViewDegrees_Float = 2035,
-	Prop_DisplaySuppressed_Bool					= 2036,
-
-	// Properties that are unique to TrackedDeviceClass_Controller
-	Prop_AttachedDeviceId_String				= 3000,
-	Prop_SupportedButtons_Uint64				= 3001,
-	Prop_Axis0Type_Int32						= 3002, // Return value is of type EVRControllerAxisType
-	Prop_Axis1Type_Int32						= 3003, // Return value is of type EVRControllerAxisType
-	Prop_Axis2Type_Int32						= 3004, // Return value is of type EVRControllerAxisType
-	Prop_Axis3Type_Int32						= 3005, // Return value is of type EVRControllerAxisType
-	Prop_Axis4Type_Int32						= 3006, // Return value is of type EVRControllerAxisType
-	Prop_ControllerRoleHint_Int32				= 3007, // Return value is of type ETrackedControllerRole
-
-	// Properties that are unique to TrackedDeviceClass_TrackingReference
-	Prop_FieldOfViewLeftDegrees_Float			= 4000,
-	Prop_FieldOfViewRightDegrees_Float			= 4001,
-	Prop_FieldOfViewTopDegrees_Float			= 4002,
-	Prop_FieldOfViewBottomDegrees_Float			= 4003,
-	Prop_TrackingRangeMinimumMeters_Float		= 4004,
-	Prop_TrackingRangeMaximumMeters_Float		= 4005,
-	Prop_ModeLabel_String						= 4006,
-
-	// Vendors are free to expose private debug data in this reserved region
-	Prop_VendorSpecific_Reserved_Start			= 10000,
-	Prop_VendorSpecific_Reserved_End			= 10999,
-};
-
-/** No string property will ever be longer than this length */
-static const uint32_t k_unMaxPropertyStringSize = 32 * 1024;
-
-/** Used to return errors that occur when reading properties. */
-enum ETrackedPropertyError
-{
-	TrackedProp_Success						= 0,
-	TrackedProp_WrongDataType				= 1,
-	TrackedProp_WrongDeviceClass			= 2,
-	TrackedProp_BufferTooSmall				= 3,
-	TrackedProp_UnknownProperty				= 4,
-	TrackedProp_InvalidDevice				= 5,
-	TrackedProp_CouldNotContactServer		= 6,
-	TrackedProp_ValueNotProvidedByDevice	= 7,
-	TrackedProp_StringExceedsMaximumLength	= 8,
-	TrackedProp_NotYetAvailable				= 9, // The property value isn't known yet, but is expected soon. Call again later.
-};
-
-/** Allows the application to control what part of the provided texture will be used in the
-* frame buffer. */
-struct VRTextureBounds_t
-{
-	float uMin, vMin;
-	float uMax, vMax;
-};
-
-
-/** Allows the application to control how scene textures are used by the compositor when calling Submit. */
-enum EVRSubmitFlags
-{
-	// Simple render path. App submits rendered left and right eye images with no lens distortion correction applied.
-	Submit_Default = 0x00,
-
-	// App submits final left and right eye images with lens distortion already applied (lens distortion makes the images appear
-	// barrel distorted with chromatic aberration correction applied). The app would have used the data returned by
-	// vr::IVRSystem::ComputeDistortion() to apply the correct distortion to the rendered images before calling Submit().
-	Submit_LensDistortionAlreadyApplied = 0x01,
-
-	// If the texture pointer passed in is actually a renderbuffer (e.g. for MSAA in OpenGL) then set this flag.
-	Submit_GlRenderBuffer = 0x02,
-};
-
-
-/** Status of the overall system or tracked objects */
-enum EVRState
-{
-	VRState_Undefined = -1,
-	VRState_Off = 0,
-	VRState_Searching = 1,
-	VRState_Searching_Alert = 2,
-	VRState_Ready = 3,
-	VRState_Ready_Alert = 4,
-	VRState_NotReady = 5,
-	VRState_Standby = 6,
-	VRState_Ready_Alert_Low = 7,
-};
-
-/** The types of events that could be posted (and what the parameters mean for each event type) */
-enum EVREventType
-{
-	VREvent_None = 0,
-
-	VREvent_TrackedDeviceActivated		= 100,
-	VREvent_TrackedDeviceDeactivated	= 101,
-	VREvent_TrackedDeviceUpdated		= 102,
-	VREvent_TrackedDeviceUserInteractionStarted		= 103,
-	VREvent_TrackedDeviceUserInteractionEnded	= 104,
-	VREvent_IpdChanged					= 105,
-	VREvent_EnterStandbyMode			= 106,
-	VREvent_LeaveStandbyMode			= 107,
-	VREvent_TrackedDeviceRoleChanged	= 108,
-	VREvent_WatchdogWakeUpRequested		= 109,
-
-	VREvent_ButtonPress					= 200, // data is controller
-	VREvent_ButtonUnpress				= 201, // data is controller
-	VREvent_ButtonTouch					= 202, // data is controller
-	VREvent_ButtonUntouch				= 203, // data is controller
-
-	VREvent_MouseMove					= 300, // data is mouse
-	VREvent_MouseButtonDown				= 301, // data is mouse
-	VREvent_MouseButtonUp				= 302, // data is mouse
-	VREvent_FocusEnter					= 303, // data is overlay
-	VREvent_FocusLeave					= 304, // data is overlay
-	VREvent_Scroll						= 305, // data is mouse
-	VREvent_TouchPadMove				= 306, // data is mouse
-	VREvent_OverlayFocusChanged			= 307, // data is overlay, global event
-
-	VREvent_InputFocusCaptured			= 400, // data is process DEPRECATED
-	VREvent_InputFocusReleased			= 401, // data is process DEPRECATED
-	VREvent_SceneFocusLost				= 402, // data is process
-	VREvent_SceneFocusGained			= 403, // data is process
-	VREvent_SceneApplicationChanged		= 404, // data is process - The App actually drawing the scene changed (usually to or from the compositor)
-	VREvent_SceneFocusChanged			= 405, // data is process - New app got access to draw the scene
-	VREvent_InputFocusChanged			= 406, // data is process
-	VREvent_SceneApplicationSecondaryRenderingStarted = 407, // data is process
-
-	VREvent_HideRenderModels			= 410, // Sent to the scene application to request hiding render models temporarily
-	VREvent_ShowRenderModels			= 411, // Sent to the scene application to request restoring render model visibility
-
-	VREvent_OverlayShown				= 500,
-	VREvent_OverlayHidden				= 501,
-	VREvent_DashboardActivated		= 502,
-	VREvent_DashboardDeactivated	= 503,
-	VREvent_DashboardThumbSelected	= 504, // Sent to the overlay manager - data is overlay
-	VREvent_DashboardRequested		= 505, // Sent to the overlay manager - data is overlay
-	VREvent_ResetDashboard			= 506, // Send to the overlay manager
-	VREvent_RenderToast				= 507, // Send to the dashboard to render a toast - data is the notification ID
-	VREvent_ImageLoaded				= 508, // Sent to overlays when a SetOverlayRaw or SetOverlayFromFile call finishes loading
-	VREvent_ShowKeyboard = 509, // Sent to keyboard renderer in the dashboard to invoke it
-	VREvent_HideKeyboard = 510, // Sent to keyboard renderer in the dashboard to hide it
-	VREvent_OverlayGamepadFocusGained		= 511, // Sent to an overlay when IVROverlay::SetFocusOverlay is called on it
-	VREvent_OverlayGamepadFocusLost = 512, // Send to an overlay when it previously had focus and IVROverlay::SetFocusOverlay is called on something else
-	VREvent_OverlaySharedTextureChanged = 513,
-	VREvent_DashboardGuideButtonDown = 514,
-	VREvent_DashboardGuideButtonUp = 515,
-	VREvent_ScreenshotTriggered	= 516, // Screenshot button combo was pressed, Dashboard should request a screenshot
-	VREvent_ImageFailed				= 517, // Sent to overlays when a SetOverlayRaw or SetOverlayfromFail fails to load
-
-	// Screenshot API
-	VREvent_RequestScreenshot = 520, // Sent by vrclient application to compositor to take a screenshot
-	VREvent_ScreenshotTaken = 521, // Sent by compositor to the application that the screenshot has been taken
-	VREvent_ScreenshotFailed = 522, // Sent by compositor to the application that the screenshot failed to be taken
-	VREvent_SubmitScreenshotToDashboard = 523, // Sent by compositor to the dashboard that a completed screenshot was submitted
-	VREvent_ScreenshotProgressToDashboard = 524, // Sent by compositor to the dashboard that a completed screenshot was submitted
-
-	VREvent_Notification_Shown				= 600,
-	VREvent_Notification_Hidden				= 601,
-	VREvent_Notification_BeginInteraction	= 602,
-	VREvent_Notification_Destroyed			= 603,
-
-	VREvent_Quit						= 700, // data is process
-	VREvent_ProcessQuit					= 701, // data is process
-	VREvent_QuitAborted_UserPrompt		= 702, // data is process
-	VREvent_QuitAcknowledged			= 703, // data is process
-	VREvent_DriverRequestedQuit			= 704, // The driver has requested that SteamVR shut down
-
-	VREvent_ChaperoneDataHasChanged		= 800,
-	VREvent_ChaperoneUniverseHasChanged	= 801,
-	VREvent_ChaperoneTempDataHasChanged = 802,
-	VREvent_ChaperoneSettingsHaveChanged = 803,
-	VREvent_SeatedZeroPoseReset			= 804,
-
-	VREvent_AudioSettingsHaveChanged	= 820,
-
-	VREvent_BackgroundSettingHasChanged	= 850,
-	VREvent_CameraSettingsHaveChanged	= 851,
-	VREvent_ReprojectionSettingHasChanged = 852,
-	VREvent_ModelSkinSettingsHaveChanged = 853,
-	VREvent_EnvironmentSettingsHaveChanged = 854,
-
-	VREvent_StatusUpdate				= 900,
-
-	VREvent_MCImageUpdated				= 1000,
-
-	VREvent_FirmwareUpdateStarted	= 1100,
-	VREvent_FirmwareUpdateFinished	= 1101,
-
-	VREvent_KeyboardClosed				= 1200,
-	VREvent_KeyboardCharInput			= 1201,
-	VREvent_KeyboardDone				= 1202, // Sent when DONE button clicked on keyboard
-
-	VREvent_ApplicationTransitionStarted	= 1300,
-	VREvent_ApplicationTransitionAborted	= 1301,
-	VREvent_ApplicationTransitionNewAppStarted = 1302,
-	VREvent_ApplicationListUpdated			= 1303,
-	VREvent_ApplicationMimeTypeLoad			= 1304,
-
-	VREvent_Compositor_MirrorWindowShown	= 1400,
-	VREvent_Compositor_MirrorWindowHidden	= 1401,
-	VREvent_Compositor_ChaperoneBoundsShown = 1410,
-	VREvent_Compositor_ChaperoneBoundsHidden = 1411,
-
-	VREvent_TrackedCamera_StartVideoStream  = 1500,
-	VREvent_TrackedCamera_StopVideoStream   = 1501,
-	VREvent_TrackedCamera_PauseVideoStream  = 1502,
-	VREvent_TrackedCamera_ResumeVideoStream = 1503,
-
-	VREvent_PerformanceTest_EnableCapture = 1600,
-	VREvent_PerformanceTest_DisableCapture = 1601,
-	VREvent_PerformanceTest_FidelityLevel = 1602,
-	
-	// Vendors are free to expose private events in this reserved region
-	VREvent_VendorSpecific_Reserved_Start = 10000,
-	VREvent_VendorSpecific_Reserved_End = 19999,
-};
-
-
-/** Level of Hmd activity */
-enum EDeviceActivityLevel
-{
-	k_EDeviceActivityLevel_Unknown = -1,
-	k_EDeviceActivityLevel_Idle = 0,
-	k_EDeviceActivityLevel_UserInteraction = 1,
-	k_EDeviceActivityLevel_UserInteraction_Timeout = 2,
-	k_EDeviceActivityLevel_Standby = 3,
-};
-
-
-/** VR controller button and axis IDs */
-enum EVRButtonId
-{
-	k_EButton_System			= 0,
-	k_EButton_ApplicationMenu	= 1,
-	k_EButton_Grip				= 2,
-	k_EButton_DPad_Left			= 3,
-	k_EButton_DPad_Up			= 4,
-	k_EButton_DPad_Right		= 5,
-	k_EButton_DPad_Down			= 6,
-	k_EButton_A					= 7,
-
-	k_EButton_Axis0				= 32,
-	k_EButton_Axis1				= 33,
-	k_EButton_Axis2				= 34,
-	k_EButton_Axis3				= 35,
-	k_EButton_Axis4				= 36,
-
-	// aliases for well known controllers
-	k_EButton_SteamVR_Touchpad	= k_EButton_Axis0,
-	k_EButton_SteamVR_Trigger	= k_EButton_Axis1,
-
-	k_EButton_Dashboard_Back	= k_EButton_Grip,
-
-	k_EButton_Max				= 64
-};
-
-inline uint64_t ButtonMaskFromId( EVRButtonId id ) { return 1ull << id; }
-
-/** used for controller button events */
-struct VREvent_Controller_t
-{
-	uint32_t button; // EVRButtonId enum
-};
-
-
-/** used for simulated mouse events in overlay space */
-enum EVRMouseButton
-{
-	VRMouseButton_Left					= 0x0001,
-	VRMouseButton_Right					= 0x0002,
-	VRMouseButton_Middle				= 0x0004,
-};
-
-
-/** used for simulated mouse events in overlay space */
-struct VREvent_Mouse_t
-{
-	float x, y; // co-ords are in GL space, bottom left of the texture is 0,0
-	uint32_t button; // EVRMouseButton enum
-};
-
-/** used for simulated mouse wheel scroll in overlay space */
-struct VREvent_Scroll_t
-{
-	float xdelta, ydelta; // movement in fraction of the pad traversed since last delta, 1.0 for a full swipe
-	uint32_t repeatCount;
-};
-
-/** when in mouse input mode you can receive data from the touchpad, these events are only sent if the users finger
-   is on the touchpad (or just released from it) 
-**/
-struct VREvent_TouchPadMove_t
-{
-	// true if the users finger is detected on the touch pad
-	bool bFingerDown;
-
-	// How long the finger has been down in seconds
-	float flSecondsFingerDown;
-
-	// These values indicate the starting finger position (so you can do some basic swipe stuff)
-	float fValueXFirst;
-	float fValueYFirst;
-
-	// This is the raw sampled coordinate without deadzoning
-	float fValueXRaw;
-	float fValueYRaw;
-};
-
-/** notification related events. Details will still change at this point */
-struct VREvent_Notification_t
-{
-	uint64_t ulUserValue;
-	uint32_t notificationId;
-};
-
-/** Used for events about processes */
-struct VREvent_Process_t
-{
-	uint32_t pid;
-	uint32_t oldPid;
-	bool bForced;
-};
-
-
-/** Used for a few events about overlays */
-struct VREvent_Overlay_t
-{
-	uint64_t overlayHandle;
-};
-
-
-/** Used for a few events about overlays */
-struct VREvent_Status_t
-{
-	uint32_t statusState; // EVRState enum
-};
-
-/** Used for keyboard events **/
-struct VREvent_Keyboard_t
-{
-	char cNewInput[8];	// Up to 11 bytes of new input
-	uint64_t uUserValue;	// Possible flags about the new input
-};
-
-struct VREvent_Ipd_t
-{
-	float ipdMeters;
-};
-
-struct VREvent_Chaperone_t
-{
-	uint64_t m_nPreviousUniverse;
-	uint64_t m_nCurrentUniverse;
-};
-
-/** Not actually used for any events */
-struct VREvent_Reserved_t
-{
-	uint64_t reserved0;
-	uint64_t reserved1;
-};
-
-struct VREvent_PerformanceTest_t
-{
-	uint32_t m_nFidelityLevel;
-};
-
-struct VREvent_SeatedZeroPoseReset_t
-{
-	bool bResetBySystemMenu;
-};
-
-struct VREvent_Screenshot_t
-{
-	uint32_t handle;
-	uint32_t type;
-};
-
-struct VREvent_ScreenshotProgress_t
-{
-	float progress;
-};
-
-struct VREvent_ApplicationLaunch_t
-{
-	uint32_t pid;
-	uint32_t unArgsHandle;
-};
-
-/** If you change this you must manually update openvr_interop.cs.py */
-typedef union
-{
-	VREvent_Reserved_t reserved;
-	VREvent_Controller_t controller;
-	VREvent_Mouse_t mouse;
-	VREvent_Scroll_t scroll;
-	VREvent_Process_t process;
-	VREvent_Notification_t notification;
-	VREvent_Overlay_t overlay;
-	VREvent_Status_t status;
-	VREvent_Keyboard_t keyboard;
-	VREvent_Ipd_t ipd;
-	VREvent_Chaperone_t chaperone;
-	VREvent_PerformanceTest_t performanceTest;
-	VREvent_TouchPadMove_t touchPadMove;
-	VREvent_SeatedZeroPoseReset_t seatedZeroPoseReset;
-	VREvent_Screenshot_t screenshot;
-	VREvent_ScreenshotProgress_t screenshotProgress;
-	VREvent_ApplicationLaunch_t applicationLaunch;
-} VREvent_Data_t;
-
-/** An event posted by the server to all running applications */
-struct VREvent_t
-{
-	uint32_t eventType; // EVREventType enum
-	TrackedDeviceIndex_t trackedDeviceIndex;
-	float eventAgeSeconds;
-	// event data must be the end of the struct as its size is variable
-	VREvent_Data_t data;
-};
-
-
-/** The mesh to draw into the stencil (or depth) buffer to perform 
-* early stencil (or depth) kills of pixels that will never appear on the HMD.
-* This mesh draws on all the pixels that will be hidden after distortion. 
-*
-* If the HMD does not provide a visible area mesh pVertexData will be
-* NULL and unTriangleCount will be 0. */
-struct HiddenAreaMesh_t
-{
-	const HmdVector2_t *pVertexData;
-	uint32_t unTriangleCount;
-};
-
-
-/** Identifies what kind of axis is on the controller at index n. Read this type 
-* with pVRSystem->Get( nControllerDeviceIndex, Prop_Axis0Type_Int32 + n );
-*/
-enum EVRControllerAxisType
-{
-	k_eControllerAxis_None = 0,
-	k_eControllerAxis_TrackPad = 1,
-	k_eControllerAxis_Joystick = 2,
-	k_eControllerAxis_Trigger = 3, // Analog trigger data is in the X axis
-};
-
-
-/** contains information about one axis on the controller */
-struct VRControllerAxis_t
-{
-	float x; // Ranges from -1.0 to 1.0 for joysticks and track pads. Ranges from 0.0 to 1.0 for triggers were 0 is fully released.
-	float y; // Ranges from -1.0 to 1.0 for joysticks and track pads. Is always 0.0 for triggers.
-};
-
-
-/** the number of axes in the controller state */
-static const uint32_t k_unControllerStateAxisCount = 5;
-
-
-/** Holds all the state of a controller at one moment in time. */
-struct VRControllerState001_t
-{
-	// If packet num matches that on your prior call, then the controller state hasn't been changed since 
-	// your last call and there is no need to process it
-	uint32_t unPacketNum;
-
-	// bit flags for each of the buttons. Use ButtonMaskFromId to turn an ID into a mask
-	uint64_t ulButtonPressed;
-	uint64_t ulButtonTouched;
-
-	// Axis data for the controller's analog inputs
-	VRControllerAxis_t rAxis[ k_unControllerStateAxisCount ];
-};
-
-
-typedef VRControllerState001_t VRControllerState_t;
-
-
-/** determines how to provide output to the application of various event processing functions. */
-enum EVRControllerEventOutputType
-{
-	ControllerEventOutput_OSEvents = 0,
-	ControllerEventOutput_VREvents = 1,
-};
-
-
-
-/** Collision Bounds Style */
-enum ECollisionBoundsStyle
-{
-	COLLISION_BOUNDS_STYLE_BEGINNER = 0,
-	COLLISION_BOUNDS_STYLE_INTERMEDIATE,
-	COLLISION_BOUNDS_STYLE_SQUARES,
-	COLLISION_BOUNDS_STYLE_ADVANCED,
-	COLLISION_BOUNDS_STYLE_NONE,
-
-	COLLISION_BOUNDS_STYLE_COUNT
-};
-
-/** Allows the application to customize how the overlay appears in the compositor */
-struct Compositor_OverlaySettings
-{
-	uint32_t size; // sizeof(Compositor_OverlaySettings)
-	bool curved, antialias;
-	float scale, distance, alpha;
-	float uOffset, vOffset, uScale, vScale;
-	float gridDivs, gridWidth, gridScale;
-	HmdMatrix44_t transform;
-};
-
-/** used to refer to a single VR overlay */
-typedef uint64_t VROverlayHandle_t;
-
-static const VROverlayHandle_t k_ulOverlayHandleInvalid = 0;
-
-/** Errors that can occur around VR overlays */
-enum EVROverlayError
-{
-	VROverlayError_None					= 0,
-
-	VROverlayError_UnknownOverlay		= 10,
-	VROverlayError_InvalidHandle		= 11,
-	VROverlayError_PermissionDenied		= 12,
-	VROverlayError_OverlayLimitExceeded = 13, // No more overlays could be created because the maximum number already exist
-	VROverlayError_WrongVisibilityType	= 14,
-	VROverlayError_KeyTooLong			= 15,
-	VROverlayError_NameTooLong			= 16,
-	VROverlayError_KeyInUse				= 17,
-	VROverlayError_WrongTransformType	= 18,
-	VROverlayError_InvalidTrackedDevice = 19,
-	VROverlayError_InvalidParameter		= 20,
-	VROverlayError_ThumbnailCantBeDestroyed = 21,
-	VROverlayError_ArrayTooSmall		= 22,
-	VROverlayError_RequestFailed		= 23,
-	VROverlayError_InvalidTexture		= 24,
-	VROverlayError_UnableToLoadFile		= 25,
-	VROVerlayError_KeyboardAlreadyInUse = 26,
-	VROverlayError_NoNeighbor			= 27,
-};
-
-/** enum values to pass in to VR_Init to identify whether the application will 
-* draw a 3D scene. */
-enum EVRApplicationType
-{
-	VRApplication_Other = 0,		// Some other kind of application that isn't covered by the other entries 
-	VRApplication_Scene	= 1,		// Application will submit 3D frames 
-	VRApplication_Overlay = 2,		// Application only interacts with overlays
-	VRApplication_Background = 3,	// Application should not start SteamVR if it's not already running, and should not
-									// keep it running if everything else quits.
-	VRApplication_Utility = 4,		// Init should not try to load any drivers. The application needs access to utility
-									// interfaces (like IVRSettings and IVRApplications) but not hardware.
-	VRApplication_VRMonitor = 5,	// Reserved for vrmonitor
-	VRApplication_SteamWatchdog = 6,// Reserved for Steam
-
-	VRApplication_Max
-};
-
-
-/** error codes for firmware */
-enum EVRFirmwareError
-{
-	VRFirmwareError_None = 0,
-	VRFirmwareError_Success = 1,
-	VRFirmwareError_Fail = 2,
-};
-
-
-/** error codes for notifications */
-enum EVRNotificationError
-{
-	VRNotificationError_OK = 0,
-	VRNotificationError_InvalidNotificationId = 100,
-	VRNotificationError_NotificationQueueFull = 101,
-	VRNotificationError_InvalidOverlayHandle = 102,
-	VRNotificationError_SystemWithUserValueAlreadyExists = 103,
-};
-
-
-/** error codes returned by Vr_Init */
-
-// Please add adequate error description to https://developer.valvesoftware.com/w/index.php?title=Category:SteamVRHelp
-enum EVRInitError
-{
-	VRInitError_None	= 0,
-	VRInitError_Unknown = 1,
-
-	VRInitError_Init_InstallationNotFound		= 100,
-	VRInitError_Init_InstallationCorrupt		= 101,
-	VRInitError_Init_VRClientDLLNotFound		= 102,
-	VRInitError_Init_FileNotFound				= 103,
-	VRInitError_Init_FactoryNotFound			= 104,
-	VRInitError_Init_InterfaceNotFound			= 105,
-	VRInitError_Init_InvalidInterface			= 106,
-	VRInitError_Init_UserConfigDirectoryInvalid = 107,
-	VRInitError_Init_HmdNotFound				= 108,
-	VRInitError_Init_NotInitialized				= 109,
-	VRInitError_Init_PathRegistryNotFound		= 110,
-	VRInitError_Init_NoConfigPath				= 111,
-	VRInitError_Init_NoLogPath					= 112,
-	VRInitError_Init_PathRegistryNotWritable	= 113,
-	VRInitError_Init_AppInfoInitFailed			= 114,
-	VRInitError_Init_Retry						= 115, // Used internally to cause retries to vrserver
-	VRInitError_Init_InitCanceledByUser			= 116, // The calling application should silently exit. The user canceled app startup
-	VRInitError_Init_AnotherAppLaunching		= 117, 
-	VRInitError_Init_SettingsInitFailed			= 118, 
-	VRInitError_Init_ShuttingDown				= 119,
-	VRInitError_Init_TooManyObjects				= 120,
-	VRInitError_Init_NoServerForBackgroundApp	= 121,
-	VRInitError_Init_NotSupportedWithCompositor	= 122,
-	VRInitError_Init_NotAvailableToUtilityApps	= 123,
-	VRInitError_Init_Internal				 	= 124,
-	VRInitError_Init_HmdDriverIdIsNone		 	= 125,
-	VRInitError_Init_HmdNotFoundPresenceFailed 	= 126,
-	VRInitError_Init_VRMonitorNotFound			= 127,
-	VRInitError_Init_VRMonitorStartupFailed		= 128,
-	VRInitError_Init_LowPowerWatchdogNotSupported = 129, 
-	VRInitError_Init_InvalidApplicationType		= 130,
-	VRInitError_Init_NotAvailableToWatchdogApps = 131,
-	VRInitError_Init_WatchdogDisabledInSettings = 132,
-
-	VRInitError_Driver_Failed				= 200,
-	VRInitError_Driver_Unknown				= 201,
-	VRInitError_Driver_HmdUnknown			= 202,
-	VRInitError_Driver_NotLoaded			= 203,
-	VRInitError_Driver_RuntimeOutOfDate		= 204,
-	VRInitError_Driver_HmdInUse				= 205,
-	VRInitError_Driver_NotCalibrated		= 206,
-	VRInitError_Driver_CalibrationInvalid	= 207,
-	VRInitError_Driver_HmdDisplayNotFound	= 208,
-	VRInitError_Driver_TrackedDeviceInterfaceUnknown = 209,
-	// VRInitError_Driver_HmdDisplayNotFoundAfterFix	 = 210, // not needed: here for historic reasons
-	VRInitError_Driver_HmdDriverIdOutOfBounds = 211,
-	VRInitError_Driver_HmdDisplayMirrored  = 212,
-
-	VRInitError_IPC_ServerInitFailed		= 300,
-	VRInitError_IPC_ConnectFailed			= 301,
-	VRInitError_IPC_SharedStateInitFailed	= 302,
-	VRInitError_IPC_CompositorInitFailed	= 303,
-	VRInitError_IPC_MutexInitFailed			= 304,
-	VRInitError_IPC_Failed					= 305,
-	VRInitError_IPC_CompositorConnectFailed	= 306,
-	VRInitError_IPC_CompositorInvalidConnectResponse = 307,
-	VRInitError_IPC_ConnectFailedAfterMultipleAttempts = 308,
-
-	VRInitError_Compositor_Failed					= 400,
-	VRInitError_Compositor_D3D11HardwareRequired	= 401,
-	VRInitError_Compositor_FirmwareRequiresUpdate	= 402,
-	VRInitError_Compositor_OverlayInitFailed		= 403,
-	VRInitError_Compositor_ScreenshotsInitFailed	= 404,
-
-	VRInitError_VendorSpecific_UnableToConnectToOculusRuntime = 1000,
-
-	VRInitError_VendorSpecific_HmdFound_CantOpenDevice 				= 1101,
-	VRInitError_VendorSpecific_HmdFound_UnableToRequestConfigStart	= 1102,
-	VRInitError_VendorSpecific_HmdFound_NoStoredConfig 				= 1103,
-	VRInitError_VendorSpecific_HmdFound_ConfigTooBig 				= 1104,
-	VRInitError_VendorSpecific_HmdFound_ConfigTooSmall 				= 1105,
-	VRInitError_VendorSpecific_HmdFound_UnableToInitZLib 			= 1106,
-	VRInitError_VendorSpecific_HmdFound_CantReadFirmwareVersion 	= 1107,
-	VRInitError_VendorSpecific_HmdFound_UnableToSendUserDataStart	= 1108,
-	VRInitError_VendorSpecific_HmdFound_UnableToGetUserDataStart	= 1109,
-	VRInitError_VendorSpecific_HmdFound_UnableToGetUserDataNext		= 1110,
-	VRInitError_VendorSpecific_HmdFound_UserDataAddressRange		= 1111,
-	VRInitError_VendorSpecific_HmdFound_UserDataError				= 1112,
-	VRInitError_VendorSpecific_HmdFound_ConfigFailedSanityCheck		= 1113,
-
-	VRInitError_Steam_SteamInstallationNotFound = 2000,
-};
-
-enum EVRScreenshotType
-{
-	VRScreenshotType_None = 0,
-	VRScreenshotType_Mono = 1, // left eye only
-	VRScreenshotType_Stereo = 2,
-	VRScreenshotType_Cubemap = 3,
-	VRScreenshotType_MonoPanorama = 4,
-	VRScreenshotType_StereoPanorama = 5
-};
-
-enum EVRScreenshotPropertyFilenames
-{
-	VRScreenshotPropertyFilenames_Preview = 0,
-	VRScreenshotPropertyFilenames_VR = 1,
-};
-
-enum EVRTrackedCameraError
-{
-	VRTrackedCameraError_None                       = 0,
-	VRTrackedCameraError_OperationFailed            = 100,
-	VRTrackedCameraError_InvalidHandle              = 101,	
-	VRTrackedCameraError_InvalidFrameHeaderVersion  = 102,
-	VRTrackedCameraError_OutOfHandles               = 103,
-	VRTrackedCameraError_IPCFailure                 = 104,
-	VRTrackedCameraError_NotSupportedForThisDevice  = 105,
-	VRTrackedCameraError_SharedMemoryFailure        = 106,
-	VRTrackedCameraError_FrameBufferingFailure      = 107,
-	VRTrackedCameraError_StreamSetupFailure         = 108,
-	VRTrackedCameraError_InvalidGLTextureId         = 109,
-	VRTrackedCameraError_InvalidSharedTextureHandle = 110,
-	VRTrackedCameraError_FailedToGetGLTextureId     = 111,
-	VRTrackedCameraError_SharedTextureFailure       = 112,
-	VRTrackedCameraError_NoFrameAvailable           = 113,
-	VRTrackedCameraError_InvalidArgument            = 114,
-	VRTrackedCameraError_InvalidFrameBufferSize     = 115,
-};
-
-enum EVRTrackedCameraFrameType
-{
-	VRTrackedCameraFrameType_Distorted = 0,			// This is the camera video frame size in pixels, still distorted.
-	VRTrackedCameraFrameType_Undistorted,			// In pixels, an undistorted inscribed rectangle region without invalid regions. This size is subject to changes shortly.
-	VRTrackedCameraFrameType_MaximumUndistorted,	// In pixels, maximum undistorted with invalid regions. Non zero alpha component identifies valid regions.
-	MAX_CAMERA_FRAME_TYPES
-};
-
-typedef uint64_t TrackedCameraHandle_t;
-#define INVALID_TRACKED_CAMERA_HANDLE	((vr::TrackedCameraHandle_t)0)
-
-struct CameraVideoStreamFrameHeader_t
-{
-	EVRTrackedCameraFrameType eFrameType;
-
-	uint32_t nWidth;
-	uint32_t nHeight;
-	uint32_t nBytesPerPixel;
-
-	uint32_t nFrameSequence;
-
-	TrackedDevicePose_t standingTrackedDevicePose;
-};
-
-// Screenshot types
-typedef uint32_t ScreenshotHandle_t;
-
-static const uint32_t k_unScreenshotHandleInvalid = 0;
-
-#pragma pack( pop )
-
-// figure out how to import from the VR API dll
-#if defined(_WIN32)
-
-#ifdef VR_API_EXPORT
-#define VR_INTERFACE extern "C" __declspec( dllexport )
-#else
-#define VR_INTERFACE extern "C" __declspec( dllimport )
-#endif
-
-#elif defined(__GNUC__) || defined(COMPILER_GCC) || defined(__APPLE__)
-
-#ifdef VR_API_EXPORT
-#define VR_INTERFACE extern "C" __attribute__((visibility("default")))
-#else
-#define VR_INTERFACE extern "C" 
-#endif
-
-#else
-#error "Unsupported Platform."
-#endif
-
-
-#if defined( _WIN32 )
-#define VR_CALLTYPE __cdecl
-#else
-#define VR_CALLTYPE 
-#endif
-
-} // namespace vr
-
-#endif // _INCLUDE_VRTYPES_H
-
-
-// vrannotation.h
-#ifdef API_GEN
-# define VR_CLANG_ATTR(ATTR) __attribute__((annotate( ATTR )))
-#else
-# define VR_CLANG_ATTR(ATTR)
-#endif
-
-#define VR_METHOD_DESC(DESC) VR_CLANG_ATTR( "desc:" #DESC ";" )
-#define VR_IGNOREATTR() VR_CLANG_ATTR( "ignore" )
-#define VR_OUT_STRUCT() VR_CLANG_ATTR( "out_struct: ;" )
-#define VR_OUT_STRING() VR_CLANG_ATTR( "out_string: ;" )
-#define VR_OUT_ARRAY_CALL(COUNTER,FUNCTION,PARAMS) VR_CLANG_ATTR( "out_array_call:" #COUNTER "," #FUNCTION "," #PARAMS ";" )
-#define VR_OUT_ARRAY_COUNT(COUNTER) VR_CLANG_ATTR( "out_array_count:" #COUNTER ";" )
-#define VR_ARRAY_COUNT(COUNTER) VR_CLANG_ATTR( "array_count:" #COUNTER ";" )
-#define VR_ARRAY_COUNT_D(COUNTER, DESC) VR_CLANG_ATTR( "array_count:" #COUNTER ";desc:" #DESC )
-#define VR_BUFFER_COUNT(COUNTER) VR_CLANG_ATTR( "buffer_count:" #COUNTER ";" )
-#define VR_OUT_BUFFER_COUNT(COUNTER) VR_CLANG_ATTR( "out_buffer_count:" #COUNTER ";" )
-#define VR_OUT_STRING_COUNT(COUNTER) VR_CLANG_ATTR( "out_string_count:" #COUNTER ";" )
-
-// ivrsystem.h
-namespace vr
-{
-
-class IVRSystem
-{
-public:
-
-
-	// ------------------------------------
-	// Display Methods
-	// ------------------------------------
-
-	/** Suggested size for the intermediate render target that the distortion pulls from. */
-	virtual void GetRecommendedRenderTargetSize( uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
-
-	/** The projection matrix for the specified eye */
-	virtual HmdMatrix44_t GetProjectionMatrix( EVREye eEye, float fNearZ, float fFarZ, EGraphicsAPIConvention eProjType ) = 0;
-
-	/** The components necessary to build your own projection matrix in case your
-	* application is doing something fancy like infinite Z */
-	virtual void GetProjectionRaw( EVREye eEye, float *pfLeft, float *pfRight, float *pfTop, float *pfBottom ) = 0;
-
-	/** Returns the result of the distortion function for the specified eye and input UVs. UVs go from 0,0 in 
-	* the upper left of that eye's viewport and 1,1 in the lower right of that eye's viewport. */
-	virtual DistortionCoordinates_t ComputeDistortion( EVREye eEye, float fU, float fV ) = 0;
-
-	/** Returns the transform from eye space to the head space. Eye space is the per-eye flavor of head
-	* space that provides stereo disparity. Instead of Model * View * Projection the sequence is Model * View * Eye^-1 * Projection. 
-	* Normally View and Eye^-1 will be multiplied together and treated as View in your application. 
-	*/
-	virtual HmdMatrix34_t GetEyeToHeadTransform( EVREye eEye ) = 0;
-
-	/** Returns the number of elapsed seconds since the last recorded vsync event. This 
-	*	will come from a vsync timer event in the timer if possible or from the application-reported
-	*   time if that is not available. If no vsync times are available the function will 
-	*   return zero for vsync time and frame counter and return false from the method. */
-	virtual bool GetTimeSinceLastVsync( float *pfSecondsSinceLastVsync, uint64_t *pulFrameCounter ) = 0;
-
-	/** [D3D9 Only]
-	* Returns the adapter index that the user should pass into CreateDevice to set up D3D9 in such
-	* a way that it can go full screen exclusive on the HMD. Returns -1 if there was an error.
-	*/
-	virtual int32_t GetD3D9AdapterIndex() = 0;
-
-	/** [D3D10/11 Only]
-	* Returns the adapter index and output index that the user should pass into EnumAdapters and EnumOutputs 
-	* to create the device and swap chain in DX10 and DX11. If an error occurs both indices will be set to -1.
-	*/
-	virtual void GetDXGIOutputInfo( int32_t *pnAdapterIndex ) = 0;
-
-	// ------------------------------------
-	// Display Mode methods
-	// ------------------------------------
-
-	/** Use to determine if the headset display is part of the desktop (i.e. extended) or hidden (i.e. direct mode). */
-	virtual bool IsDisplayOnDesktop() = 0;
-
-	/** Set the display visibility (true = extended, false = direct mode).  Return value of true indicates that the change was successful. */
-	virtual bool SetDisplayVisibility( bool bIsVisibleOnDesktop ) = 0;
-
-	// ------------------------------------
-	// Tracking Methods
-	// ------------------------------------
-
-	/** The pose that the tracker thinks that the HMD will be in at the specified number of seconds into the 
-	* future. Pass 0 to get the state at the instant the method is called. Most of the time the application should
-	* calculate the time until the photons will be emitted from the display and pass that time into the method.
-	*
-	* This is roughly analogous to the inverse of the view matrix in most applications, though 
-	* many games will need to do some additional rotation or translation on top of the rotation
-	* and translation provided by the head pose.
-	*
-	* For devices where bPoseIsValid is true the application can use the pose to position the device
-	* in question. The provided array can be any size up to k_unMaxTrackedDeviceCount. 
-	*
-	* Seated experiences should call this method with TrackingUniverseSeated and receive poses relative
-	* to the seated zero pose. Standing experiences should call this method with TrackingUniverseStanding 
-	* and receive poses relative to the Chaperone Play Area. TrackingUniverseRawAndUncalibrated should 
-	* probably not be used unless the application is the Chaperone calibration tool itself, but will provide
-	* poses relative to the hardware-specific coordinate system in the driver.
-	*/
-	virtual void GetDeviceToAbsoluteTrackingPose( ETrackingUniverseOrigin eOrigin, float fPredictedSecondsToPhotonsFromNow, VR_ARRAY_COUNT(unTrackedDevicePoseArrayCount) TrackedDevicePose_t *pTrackedDevicePoseArray, uint32_t unTrackedDevicePoseArrayCount ) = 0;
-
-	/** Sets the zero pose for the seated tracker coordinate system to the current position and yaw of the HMD. After 
-	* ResetSeatedZeroPose all GetDeviceToAbsoluteTrackingPose calls that pass TrackingUniverseSeated as the origin 
-	* will be relative to this new zero pose. The new zero coordinate system will not change the fact that the Y axis 
-	* is up in the real world, so the next pose returned from GetDeviceToAbsoluteTrackingPose after a call to 
-	* ResetSeatedZeroPose may not be exactly an identity matrix.
-	*
-	* NOTE: This function overrides the user's previously saved seated zero pose and should only be called as the result of a user action. 
-	* Users are also able to set their seated zero pose via the OpenVR Dashboard.
-	**/
-	virtual void ResetSeatedZeroPose() = 0;
-
-	/** Returns the transform from the seated zero pose to the standing absolute tracking system. This allows 
-	* applications to represent the seated origin to used or transform object positions from one coordinate
-	* system to the other. 
-	*
-	* The seated origin may or may not be inside the Play Area or Collision Bounds returned by IVRChaperone. Its position 
-	* depends on what the user has set from the Dashboard settings and previous calls to ResetSeatedZeroPose. */
-	virtual HmdMatrix34_t GetSeatedZeroPoseToStandingAbsoluteTrackingPose() = 0;
-
-	/** Returns the transform from the tracking origin to the standing absolute tracking system. This allows
-	* applications to convert from raw tracking space to the calibrated standing coordinate system. */
-	virtual HmdMatrix34_t GetRawZeroPoseToStandingAbsoluteTrackingPose() = 0;
-
-	/** Get a sorted array of device indices of a given class of tracked devices (e.g. controllers).  Devices are sorted right to left
-	* relative to the specified tracked device (default: hmd -- pass in -1 for absolute tracking space).  Returns the number of devices
-	* in the list, or the size of the array needed if not large enough. */
-	virtual uint32_t GetSortedTrackedDeviceIndicesOfClass( ETrackedDeviceClass eTrackedDeviceClass, VR_ARRAY_COUNT(unTrackedDeviceIndexArrayCount) vr::TrackedDeviceIndex_t *punTrackedDeviceIndexArray, uint32_t unTrackedDeviceIndexArrayCount, vr::TrackedDeviceIndex_t unRelativeToTrackedDeviceIndex = k_unTrackedDeviceIndex_Hmd ) = 0;
-
-	/** Returns the level of activity on the device. */
-	virtual EDeviceActivityLevel GetTrackedDeviceActivityLevel( vr::TrackedDeviceIndex_t unDeviceId ) = 0;
-
-	/** Convenience utility to apply the specified transform to the specified pose.
-	*   This properly transforms all pose components, including velocity and angular velocity
-	*/
-	virtual void ApplyTransform( TrackedDevicePose_t *pOutputPose, const TrackedDevicePose_t *pTrackedDevicePose, const HmdMatrix34_t *pTransform ) = 0;
-
-	/** Returns the device index associated with a specific role, for example the left hand or the right hand. */
-	virtual vr::TrackedDeviceIndex_t GetTrackedDeviceIndexForControllerRole( vr::ETrackedControllerRole unDeviceType ) = 0;
-
-	/** Returns the controller type associated with a device index. */
-	virtual vr::ETrackedControllerRole GetControllerRoleForTrackedDeviceIndex( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
-
-	// ------------------------------------
-	// Property methods
-	// ------------------------------------
-
-	/** Returns the device class of a tracked device. If there has not been a device connected in this slot
-	* since the application started this function will return TrackedDevice_Invalid. For previous detected
-	* devices the function will return the previously observed device class. 
-	*
-	* To determine which devices exist on the system, just loop from 0 to k_unMaxTrackedDeviceCount and check
-	* the device class. Every device with something other than TrackedDevice_Invalid is associated with an 
-	* actual tracked device. */
-	virtual ETrackedDeviceClass GetTrackedDeviceClass( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
-
-	/** Returns true if there is a device connected in this slot. */
-	virtual bool IsTrackedDeviceConnected( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
-
-	/** Returns a bool property. If the device index is not valid or the property is not a bool type this function will return false. */
-	virtual bool GetBoolTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** Returns a float property. If the device index is not valid or the property is not a float type this function will return 0. */
-	virtual float GetFloatTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** Returns an int property. If the device index is not valid or the property is not a int type this function will return 0. */
-	virtual int32_t GetInt32TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** Returns a uint64 property. If the device index is not valid or the property is not a uint64 type this function will return 0. */
-	virtual uint64_t GetUint64TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** Returns a matrix property. If the device index is not valid or the property is not a matrix type, this function will return identity. */
-	virtual HmdMatrix34_t GetMatrix34TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** Returns a string property. If the device index is not valid or the property is not a string type this function will 
-	* return 0. Otherwise it returns the length of the number of bytes necessary to hold this string including the trailing
-	* null. Strings will generally fit in buffers of k_unTrackingStringSize characters. */
-	virtual uint32_t GetStringTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, VR_OUT_STRING() char *pchValue, uint32_t unBufferSize, ETrackedPropertyError *pError = 0L ) = 0;
-
-	/** returns a string that corresponds with the specified property error. The string will be the name 
-	* of the error enum value for all valid error codes */
-	virtual const char *GetPropErrorNameFromEnum( ETrackedPropertyError error ) = 0;
-
-	// ------------------------------------
-	// Event methods
-	// ------------------------------------
-
-	/** Returns true and fills the event with the next event on the queue if there is one. If there are no events
-	* this method returns false. uncbVREvent should be the size in bytes of the VREvent_t struct */
-	virtual bool PollNextEvent( VREvent_t *pEvent, uint32_t uncbVREvent ) = 0;
-
-	/** Returns true and fills the event with the next event on the queue if there is one. If there are no events
-	* this method returns false. Fills in the pose of the associated tracked device in the provided pose struct. 
-	* This pose will always be older than the call to this function and should not be used to render the device. 
-	uncbVREvent should be the size in bytes of the VREvent_t struct */
-	virtual bool PollNextEventWithPose( ETrackingUniverseOrigin eOrigin, VREvent_t *pEvent, uint32_t uncbVREvent, vr::TrackedDevicePose_t *pTrackedDevicePose ) = 0;
-
-	/** returns the name of an EVREvent enum value */
-	virtual const char *GetEventTypeNameFromEnum( EVREventType eType ) = 0;
-
-	// ------------------------------------
-	// Rendering helper methods
-	// ------------------------------------
-
-	/** Returns the stencil mesh information for the current HMD. If this HMD does not have a stencil mesh the vertex data and count will be
-	* NULL and 0 respectively. This mesh is meant to be rendered into the stencil buffer (or into the depth buffer setting nearz) before rendering
-	* each eye's view. The pixels covered by this mesh will never be seen by the user after the lens distortion is applied and based on visibility to the panels.
-	* This will improve perf by letting the GPU early-reject pixels the user will never see before running the pixel shader.
-	* NOTE: Render this mesh with backface culling disabled since the winding order of the vertices can be different per-HMD or per-eye.
-	*/
-	virtual HiddenAreaMesh_t GetHiddenAreaMesh( EVREye eEye ) = 0;
-
-
-	// ------------------------------------
-	// Controller methods
-	// ------------------------------------
-
-	/** Fills the supplied struct with the current state of the controller. Returns false if the controller index
-	* is invalid. */
-	virtual bool GetControllerState( vr::TrackedDeviceIndex_t unControllerDeviceIndex, vr::VRControllerState_t *pControllerState ) = 0;
-
-	/** fills the supplied struct with the current state of the controller and the provided pose with the pose of 
-	* the controller when the controller state was updated most recently. Use this form if you need a precise controller
-	* pose as input to your application when the user presses or releases a button. */
-	virtual bool GetControllerStateWithPose( ETrackingUniverseOrigin eOrigin, vr::TrackedDeviceIndex_t unControllerDeviceIndex, vr::VRControllerState_t *pControllerState, TrackedDevicePose_t *pTrackedDevicePose ) = 0;
-
-	/** Trigger a single haptic pulse on a controller. After this call the application may not trigger another haptic pulse on this controller
-	* and axis combination for 5ms. */
-	virtual void TriggerHapticPulse( vr::TrackedDeviceIndex_t unControllerDeviceIndex, uint32_t unAxisId, unsigned short usDurationMicroSec ) = 0;
-
-	/** returns the name of an EVRButtonId enum value */
-	virtual const char *GetButtonIdNameFromEnum( EVRButtonId eButtonId ) = 0;
-
-	/** returns the name of an EVRControllerAxisType enum value */
-	virtual const char *GetControllerAxisTypeNameFromEnum( EVRControllerAxisType eAxisType ) = 0;
-
-	/** Tells OpenVR that this process wants exclusive access to controller button states and button events. Other apps will be notified that 
-	* they have lost input focus with a VREvent_InputFocusCaptured event. Returns false if input focus could not be captured for
-	* some reason. */
-	virtual bool CaptureInputFocus() = 0;
-
-	/** Tells OpenVR that this process no longer wants exclusive access to button states and button events. Other apps will be notified 
-	* that input focus has been released with a VREvent_InputFocusReleased event. */
-	virtual void ReleaseInputFocus() = 0;
-
-	/** Returns true if input focus is captured by another process. */
-	virtual bool IsInputFocusCapturedByAnotherProcess() = 0;
-
-	// ------------------------------------
-	// Debug Methods
-	// ------------------------------------
-
-	/** Sends a request to the driver for the specified device and returns the response. The maximum response size is 32k,
-	* but this method can be called with a smaller buffer. If the response exceeds the size of the buffer, it is truncated. 
-	* The size of the response including its terminating null is returned. */
-	virtual uint32_t DriverDebugRequest( vr::TrackedDeviceIndex_t unDeviceIndex, const char *pchRequest, char *pchResponseBuffer, uint32_t unResponseBufferSize ) = 0;
-
-
-	// ------------------------------------
-	// Firmware methods
-	// ------------------------------------
-	
-	/** Performs the actual firmware update if applicable. 
-	 * The following events will be sent, if VRFirmwareError_None was returned: VREvent_FirmwareUpdateStarted, VREvent_FirmwareUpdateFinished 
-	 * Use the properties Prop_Firmware_UpdateAvailable_Bool, Prop_Firmware_ManualUpdate_Bool, and Prop_Firmware_ManualUpdateURL_String
-	 * to figure our whether a firmware update is available, and to figure out whether its a manual update 
-	 * Prop_Firmware_ManualUpdateURL_String should point to an URL describing the manual update process */
-	virtual vr::EVRFirmwareError PerformFirmwareUpdate( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
-
-
-	// ------------------------------------
-	// Application life cycle methods
-	// ------------------------------------
-
-	/** Call this to acknowledge to the system that VREvent_Quit has been received and that the process is exiting.
-	* This extends the timeout until the process is killed. */
-	virtual void AcknowledgeQuit_Exiting() = 0;
-
-	/** Call this to tell the system that the user is being prompted to save data. This
-	* halts the timeout and dismisses the dashboard (if it was up). Applications should be sure to actually 
-	* prompt the user to save and then exit afterward, otherwise the user will be left in a confusing state. */
-	virtual void AcknowledgeQuit_UserPrompt() = 0;
-
-};
-
-static const char * const IVRSystem_Version = "IVRSystem_012";
-
-}
-
-
-// ivrapplications.h
-namespace vr
-{
-
-	/** Used for all errors reported by the IVRApplications interface */
-	enum EVRApplicationError
-	{
-		VRApplicationError_None = 0,
-
-		VRApplicationError_AppKeyAlreadyExists = 100,	// Only one application can use any given key
-		VRApplicationError_NoManifest = 101,			// the running application does not have a manifest
-		VRApplicationError_NoApplication = 102,			// No application is running
-		VRApplicationError_InvalidIndex = 103,
-		VRApplicationError_UnknownApplication = 104,	// the application could not be found
-		VRApplicationError_IPCFailed = 105,				// An IPC failure caused the request to fail
-		VRApplicationError_ApplicationAlreadyRunning = 106, 
-		VRApplicationError_InvalidManifest = 107,
-		VRApplicationError_InvalidApplication = 108,
-		VRApplicationError_LaunchFailed = 109,			// the process didn't start
-		VRApplicationError_ApplicationAlreadyStarting = 110, // the system was already starting the same application
-		VRApplicationError_LaunchInProgress = 111,		// The system was already starting a different application
-		VRApplicationError_OldApplicationQuitting = 112, 
-		VRApplicationError_TransitionAborted = 113,
-		VRApplicationError_IsTemplate = 114, // error when you try to call LaunchApplication() on a template type app (use LaunchTemplateApplication)
-
-		VRApplicationError_BufferTooSmall = 200,		// The provided buffer was too small to fit the requested data
-		VRApplicationError_PropertyNotSet = 201,		// The requested property was not set
-		VRApplicationError_UnknownProperty = 202,
-		VRApplicationError_InvalidParameter = 203,
-	};
-
-	/** The maximum length of an application key */
-	static const uint32_t k_unMaxApplicationKeyLength = 128;
-
-	/** these are the properties available on applications. */
-	enum EVRApplicationProperty
-	{
-		VRApplicationProperty_Name_String				= 0,
-
-		VRApplicationProperty_LaunchType_String			= 11,
-		VRApplicationProperty_WorkingDirectory_String	= 12,
-		VRApplicationProperty_BinaryPath_String			= 13,
-		VRApplicationProperty_Arguments_String			= 14,
-		VRApplicationProperty_URL_String				= 15,
-
-		VRApplicationProperty_Description_String		= 50,
-		VRApplicationProperty_NewsURL_String			= 51,
-		VRApplicationProperty_ImagePath_String			= 52,
-		VRApplicationProperty_Source_String				= 53,
-
-		VRApplicationProperty_IsDashboardOverlay_Bool	= 60,
-		VRApplicationProperty_IsTemplate_Bool			= 61,
-		VRApplicationProperty_IsInstanced_Bool			= 62,
-
-		VRApplicationProperty_LastLaunchTime_Uint64		= 70,
-	};
-
-	/** These are states the scene application startup process will go through. */
-	enum EVRApplicationTransitionState
-	{
-		VRApplicationTransition_None = 0,
-
-		VRApplicationTransition_OldAppQuitSent = 10,
-		VRApplicationTransition_WaitingForExternalLaunch = 11,
-		
-		VRApplicationTransition_NewAppLaunched = 20,
-	};
-
-	struct AppOverrideKeys_t
-	{
-		const char *pchKey;
-		const char *pchValue;
-	};
-
-	class IVRApplications
-	{
-	public:
-
-		// ---------------  Application management  --------------- //
-
-		/** Adds an application manifest to the list to load when building the list of installed applications. 
-		* Temporary manifests are not automatically loaded */
-		virtual EVRApplicationError AddApplicationManifest( const char *pchApplicationManifestFullPath, bool bTemporary = false ) = 0;
-
-		/** Removes an application manifest from the list to load when building the list of installed applications. */
-		virtual EVRApplicationError RemoveApplicationManifest( const char *pchApplicationManifestFullPath ) = 0;
-
-		/** Returns true if an application is installed */
-		virtual bool IsApplicationInstalled( const char *pchAppKey ) = 0;
-
-		/** Returns the number of applications available in the list */
-		virtual uint32_t GetApplicationCount() = 0;
-
-		/** Returns the key of the specified application. The index is at least 0 and is less than the return 
-		* value of GetApplicationCount(). The buffer should be at least k_unMaxApplicationKeyLength in order to 
-		* fit the key. */
-		virtual EVRApplicationError GetApplicationKeyByIndex( uint32_t unApplicationIndex, char *pchAppKeyBuffer, uint32_t unAppKeyBufferLen ) = 0;
-
-		/** Returns the key of the application for the specified Process Id. The buffer should be at least 
-		* k_unMaxApplicationKeyLength in order to fit the key. */
-		virtual EVRApplicationError GetApplicationKeyByProcessId( uint32_t unProcessId, char *pchAppKeyBuffer, uint32_t unAppKeyBufferLen ) = 0;
-
-		/** Launches the application. The existing scene application will exit and then the new application will start.
-		* This call is not valid for dashboard overlay applications. */
-		virtual EVRApplicationError LaunchApplication( const char *pchAppKey ) = 0;
-
-		/** Launches an instance of an application of type template, with its app key being pchNewAppKey (which must be unique) and optionally override sections
-		* from the manifest file via AppOverrideKeys_t
-		*/
-		virtual EVRApplicationError LaunchTemplateApplication( const char *pchTemplateAppKey, const char *pchNewAppKey, VR_ARRAY_COUNT( unKeys ) const AppOverrideKeys_t *pKeys, uint32_t unKeys ) = 0;
-
-		/** launches the application currently associated with this mime type and passes it the option args, typically the filename or object name of the item being launched */
-		virtual vr::EVRApplicationError LaunchApplicationFromMimeType( const char *pchMimeType, const char *pchArgs ) = 0;
-
-		/** Launches the dashboard overlay application if it is not already running. This call is only valid for 
-		* dashboard overlay applications. */
-		virtual EVRApplicationError LaunchDashboardOverlay( const char *pchAppKey ) = 0;
-
-		/** Cancel a pending launch for an application */
-		virtual bool CancelApplicationLaunch( const char *pchAppKey ) = 0;
-
-		/** Identifies a running application. OpenVR can't always tell which process started in response
-		* to a URL. This function allows a URL handler (or the process itself) to identify the app key 
-		* for the now running application. Passing a process ID of 0 identifies the calling process. 
-		* The application must be one that's known to the system via a call to AddApplicationManifest. */
-		virtual EVRApplicationError IdentifyApplication( uint32_t unProcessId, const char *pchAppKey ) = 0;
-
-		/** Returns the process ID for an application. Return 0 if the application was not found or is not running. */
-		virtual uint32_t GetApplicationProcessId( const char *pchAppKey ) = 0;
-
-		/** Returns a string for an applications error */
-		virtual const char *GetApplicationsErrorNameFromEnum( EVRApplicationError error ) = 0;
-
-		// ---------------  Application properties  --------------- //
-
-		/** Returns a value for an application property. The required buffer size to fit this value will be returned. */
-		virtual uint32_t GetApplicationPropertyString( const char *pchAppKey, EVRApplicationProperty eProperty, char *pchPropertyValueBuffer, uint32_t unPropertyValueBufferLen, EVRApplicationError *peError = nullptr ) = 0;
-
-		/** Returns a bool value for an application property. Returns false in all error cases. */
-		virtual bool GetApplicationPropertyBool( const char *pchAppKey, EVRApplicationProperty eProperty, EVRApplicationError *peError = nullptr ) = 0;
-
-		/** Returns a uint64 value for an application property. Returns 0 in all error cases. */
-		virtual uint64_t GetApplicationPropertyUint64( const char *pchAppKey, EVRApplicationProperty eProperty, EVRApplicationError *peError = nullptr ) = 0;
-
-		/** Sets the application auto-launch flag. This is only valid for applications which return true for VRApplicationProperty_IsDashboardOverlay_Bool. */
-		virtual EVRApplicationError SetApplicationAutoLaunch( const char *pchAppKey, bool bAutoLaunch ) = 0;
-
-		/** Gets the application auto-launch flag. This is only valid for applications which return true for VRApplicationProperty_IsDashboardOverlay_Bool. */
-		virtual bool GetApplicationAutoLaunch( const char *pchAppKey ) = 0;
-
-		/** Adds this mime-type to the list of supported mime types for this application*/
-		virtual EVRApplicationError SetDefaultApplicationForMimeType( const char *pchAppKey, const char *pchMimeType ) = 0;
-
-		/** return the app key that will open this mime type */
-		virtual bool GetDefaultApplicationForMimeType( const char *pchMimeType, char *pchAppKeyBuffer, uint32_t unAppKeyBufferLen ) = 0;
-
-		/** Get the list of supported mime types for this application, comma-delimited */
-		virtual bool GetApplicationSupportedMimeTypes( const char *pchAppKey, char *pchMimeTypesBuffer, uint32_t unMimeTypesBuffer ) = 0;
-
-		/** Get the list of app-keys that support this mime type, comma-delimited, the return value is number of bytes you need to return the full string */
-		virtual uint32_t GetApplicationsThatSupportMimeType( const char *pchMimeType, char *pchAppKeysThatSupportBuffer, uint32_t unAppKeysThatSupportBuffer ) = 0;
-
-		/** Get the args list from an app launch that had the process already running, you call this when you get a VREvent_ApplicationMimeTypeLoad */
-		virtual uint32_t GetApplicationLaunchArguments( uint32_t unHandle, char *pchArgs, uint32_t unArgs ) = 0;
-
-		// ---------------  Transition methods --------------- //
-
-		/** Returns the app key for the application that is starting up */
-		virtual EVRApplicationError GetStartingApplication( char *pchAppKeyBuffer, uint32_t unAppKeyBufferLen ) = 0;
-
-		/** Returns the application transition state */
-		virtual EVRApplicationTransitionState GetTransitionState() = 0;
-
-		/** Returns errors that would prevent the specified application from launching immediately. Calling this function will
-		* cause the current scene application to quit, so only call it when you are actually about to launch something else.
-		* What the caller should do about these failures depends on the failure:
-		*   VRApplicationError_OldApplicationQuitting - An existing application has been told to quit. Wait for a VREvent_ProcessQuit
-		*                                               and try again.
-		*   VRApplicationError_ApplicationAlreadyStarting - This application is already starting. This is a permanent failure.
-		*   VRApplicationError_LaunchInProgress	      - A different application is already starting. This is a permanent failure.
-		*   VRApplicationError_None                   - Go ahead and launch. Everything is clear.
-		*/
-		virtual EVRApplicationError PerformApplicationPrelaunchCheck( const char *pchAppKey ) = 0;
-
-		/** Returns a string for an application transition state */
-		virtual const char *GetApplicationsTransitionStateNameFromEnum( EVRApplicationTransitionState state ) = 0;
-
-		/** Returns true if the outgoing scene app has requested a save prompt before exiting */
-		virtual bool IsQuitUserPromptRequested() = 0;
-
-		/** Starts a subprocess within the calling application. This
-		* suppresses all application transition UI and automatically identifies the new executable 
-		* as part of the same application. On success the calling process should exit immediately. 
-		* If working directory is NULL or "" the directory portion of the binary path will be 
-		* the working directory. */
-		virtual EVRApplicationError LaunchInternalProcess( const char *pchBinaryPath, const char *pchArguments, const char *pchWorkingDirectory ) = 0;
-	};
-
-	static const char * const IVRApplications_Version = "IVRApplications_006";
-
-} // namespace vr
-
-// ivrsettings.h
-namespace vr
-{
-	enum EVRSettingsError
-	{
-		VRSettingsError_None = 0,
-		VRSettingsError_IPCFailed = 1,
-		VRSettingsError_WriteFailed = 2,
-		VRSettingsError_ReadFailed = 3,
-	};
-
-	// The maximum length of a settings key
-	static const uint32_t k_unMaxSettingsKeyLength = 128;
-
-	class IVRSettings
-	{
-	public:
-		virtual const char *GetSettingsErrorNameFromEnum( EVRSettingsError eError ) = 0;
-
-		// Returns true if file sync occurred (force or settings dirty)
-		virtual bool Sync( bool bForce = false, EVRSettingsError *peError = nullptr ) = 0;
-
-		virtual bool GetBool( const char *pchSection, const char *pchSettingsKey, bool bDefaultValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void SetBool( const char *pchSection, const char *pchSettingsKey, bool bValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual int32_t GetInt32( const char *pchSection, const char *pchSettingsKey, int32_t nDefaultValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void SetInt32( const char *pchSection, const char *pchSettingsKey, int32_t nValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual float GetFloat( const char *pchSection, const char *pchSettingsKey, float flDefaultValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void SetFloat( const char *pchSection, const char *pchSettingsKey, float flValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void GetString( const char *pchSection, const char *pchSettingsKey, VR_OUT_STRING() char *pchValue, uint32_t unValueLen, const char *pchDefaultValue, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void SetString( const char *pchSection, const char *pchSettingsKey, const char *pchValue, EVRSettingsError *peError = nullptr ) = 0;
-		
-		virtual void RemoveSection( const char *pchSection, EVRSettingsError *peError = nullptr ) = 0;
-		virtual void RemoveKeyInSection( const char *pchSection, const char *pchSettingsKey, EVRSettingsError *peError = nullptr ) = 0;
-	};
-
-	//-----------------------------------------------------------------------------
-	static const char * const IVRSettings_Version = "IVRSettings_001";
-
-	//-----------------------------------------------------------------------------
-	// steamvr keys
-
-	static const char * const k_pch_SteamVR_Section = "steamvr";
-	static const char * const k_pch_SteamVR_RequireHmd_String = "requireHmd";
-	static const char * const k_pch_SteamVR_ForcedDriverKey_String = "forcedDriver";
-	static const char * const k_pch_SteamVR_ForcedHmdKey_String = "forcedHmd";
-	static const char * const k_pch_SteamVR_DisplayDebug_Bool = "displayDebug";
-	static const char * const k_pch_SteamVR_DebugProcessPipe_String = "debugProcessPipe";
-	static const char * const k_pch_SteamVR_EnableDistortion_Bool = "enableDistortion";
-	static const char * const k_pch_SteamVR_DisplayDebugX_Int32 = "displayDebugX";
-	static const char * const k_pch_SteamVR_DisplayDebugY_Int32 = "displayDebugY";
-	static const char * const k_pch_SteamVR_SendSystemButtonToAllApps_Bool= "sendSystemButtonToAllApps";
-	static const char * const k_pch_SteamVR_LogLevel_Int32 = "loglevel";
-	static const char * const k_pch_SteamVR_IPD_Float = "ipd";
-	static const char * const k_pch_SteamVR_Background_String = "background";
-	static const char * const k_pch_SteamVR_BackgroundCameraHeight_Float = "backgroundCameraHeight";
-	static const char * const k_pch_SteamVR_BackgroundDomeRadius_Float = "backgroundDomeRadius";
-	static const char * const k_pch_SteamVR_Environment_String = "environment";
-	static const char * const k_pch_SteamVR_GridColor_String = "gridColor";
-	static const char * const k_pch_SteamVR_PlayAreaColor_String = "playAreaColor";
-	static const char * const k_pch_SteamVR_ShowStage_Bool = "showStage";
-	static const char * const k_pch_SteamVR_ActivateMultipleDrivers_Bool = "activateMultipleDrivers";
-	static const char * const k_pch_SteamVR_PowerOffOnExit_Bool = "powerOffOnExit";
-	static const char * const k_pch_SteamVR_StandbyAppRunningTimeout_Float = "standbyAppRunningTimeout";
-	static const char * const k_pch_SteamVR_StandbyNoAppTimeout_Float = "standbyNoAppTimeout";
-	static const char * const k_pch_SteamVR_DirectMode_Bool = "directMode";
-	static const char * const k_pch_SteamVR_DirectModeEdidVid_Int32 = "directModeEdidVid";
-	static const char * const k_pch_SteamVR_DirectModeEdidPid_Int32 = "directModeEdidPid";
-	static const char * const k_pch_SteamVR_UsingSpeakers_Bool = "usingSpeakers";
-	static const char * const k_pch_SteamVR_SpeakersForwardYawOffsetDegrees_Float = "speakersForwardYawOffsetDegrees";
-	static const char * const k_pch_SteamVR_BaseStationPowerManagement_Bool = "basestationPowerManagement";
-	static const char * const k_pch_SteamVR_NeverKillProcesses_Bool = "neverKillProcesses";
-	static const char * const k_pch_SteamVR_RenderTargetMultiplier_Float = "renderTargetMultiplier";
-	static const char * const k_pch_SteamVR_AllowReprojection_Bool = "allowReprojection";
-	static const char * const k_pch_SteamVR_ForceReprojection_Bool = "forceReprojection";
-	static const char * const k_pch_SteamVR_ForceFadeOnBadTracking_Bool = "forceFadeOnBadTracking";
-	static const char * const k_pch_SteamVR_DefaultMirrorView_Int32 = "defaultMirrorView";
-	static const char * const k_pch_SteamVR_ShowMirrorView_Bool = "showMirrorView";
-	static const char * const k_pch_SteamVR_StartMonitorFromAppLaunch = "startMonitorFromAppLaunch";
-	static const char * const k_pch_SteamVR_AutoLaunchSteamVROnButtonPress = "autoLaunchSteamVROnButtonPress";
-	static const char * const k_pch_SteamVR_UseGenericGraphcisDevice_Bool = "useGenericGraphicsDevice";
-
-
-	//-----------------------------------------------------------------------------
-	// lighthouse keys
-
-	static const char * const k_pch_Lighthouse_Section = "driver_lighthouse";
-	static const char * const k_pch_Lighthouse_DisableIMU_Bool = "disableimu";
-	static const char * const k_pch_Lighthouse_UseDisambiguation_String = "usedisambiguation";
-	static const char * const k_pch_Lighthouse_DisambiguationDebug_Int32 = "disambiguationdebug";
-
-	static const char * const k_pch_Lighthouse_PrimaryBasestation_Int32 = "primarybasestation";
-	static const char * const k_pch_Lighthouse_LighthouseName_String = "lighthousename";
-	static const char * const k_pch_Lighthouse_MaxIncidenceAngleDegrees_Float = "maxincidenceangledegrees";
-	static const char * const k_pch_Lighthouse_UseLighthouseDirect_Bool = "uselighthousedirect";
-	static const char * const k_pch_Lighthouse_DBHistory_Bool = "dbhistory";
-
-	//-----------------------------------------------------------------------------
-	// null keys
-
-	static const char * const k_pch_Null_Section = "driver_null";
-	static const char * const k_pch_Null_EnableNullDriver_Bool = "enable";
-	static const char * const k_pch_Null_SerialNumber_String = "serialNumber";
-	static const char * const k_pch_Null_ModelNumber_String = "modelNumber";
-	static const char * const k_pch_Null_WindowX_Int32 = "windowX";
-	static const char * const k_pch_Null_WindowY_Int32 = "windowY";
-	static const char * const k_pch_Null_WindowWidth_Int32 = "windowWidth";
-	static const char * const k_pch_Null_WindowHeight_Int32 = "windowHeight";
-	static const char * const k_pch_Null_RenderWidth_Int32 = "renderWidth";
-	static const char * const k_pch_Null_RenderHeight_Int32 = "renderHeight";
-	static const char * const k_pch_Null_SecondsFromVsyncToPhotons_Float = "secondsFromVsyncToPhotons";
-	static const char * const k_pch_Null_DisplayFrequency_Float = "displayFrequency";
-
-	//-----------------------------------------------------------------------------
-	// user interface keys
-	static const char * const k_pch_UserInterface_Section = "userinterface";
-	static const char * const k_pch_UserInterface_StatusAlwaysOnTop_Bool = "StatusAlwaysOnTop";
-	static const char * const k_pch_UserInterface_Screenshots_Bool = "screenshots";
-	static const char * const k_pch_UserInterface_ScreenshotType_Int = "screenshotType";
-
-	//-----------------------------------------------------------------------------
-	// notification keys
-	static const char * const k_pch_Notifications_Section = "notifications";
-	static const char * const k_pch_Notifications_DoNotDisturb_Bool = "DoNotDisturb";
-
-	//-----------------------------------------------------------------------------
-	// keyboard keys
-	static const char * const k_pch_Keyboard_Section = "keyboard";
-	static const char * const k_pch_Keyboard_TutorialCompletions = "TutorialCompletions";
-	static const char * const k_pch_Keyboard_ScaleX = "ScaleX";
-	static const char * const k_pch_Keyboard_ScaleY = "ScaleY";
-	static const char * const k_pch_Keyboard_OffsetLeftX = "OffsetLeftX";
-	static const char * const k_pch_Keyboard_OffsetRightX = "OffsetRightX";
-	static const char * const k_pch_Keyboard_OffsetY = "OffsetY";
-	static const char * const k_pch_Keyboard_Smoothing = "Smoothing";
-
-	//-----------------------------------------------------------------------------
-	// perf keys
-	static const char * const k_pch_Perf_Section = "perfcheck";
-	static const char * const k_pch_Perf_HeuristicActive_Bool = "heuristicActive";
-	static const char * const k_pch_Perf_NotifyInHMD_Bool = "warnInHMD";
-	static const char * const k_pch_Perf_NotifyOnlyOnce_Bool = "warnOnlyOnce";
-	static const char * const k_pch_Perf_AllowTimingStore_Bool = "allowTimingStore";
-	static const char * const k_pch_Perf_SaveTimingsOnExit_Bool = "saveTimingsOnExit";
-	static const char * const k_pch_Perf_TestData_Float = "perfTestData";
-
-	//-----------------------------------------------------------------------------
-	// collision bounds keys
-	static const char * const k_pch_CollisionBounds_Section = "collisionBounds";
-	static const char * const k_pch_CollisionBounds_Style_Int32 = "CollisionBoundsStyle";
-	static const char * const k_pch_CollisionBounds_GroundPerimeterOn_Bool = "CollisionBoundsGroundPerimeterOn";
-	static const char * const k_pch_CollisionBounds_CenterMarkerOn_Bool = "CollisionBoundsCenterMarkerOn";
-	static const char * const k_pch_CollisionBounds_PlaySpaceOn_Bool = "CollisionBoundsPlaySpaceOn";
-	static const char * const k_pch_CollisionBounds_FadeDistance_Float = "CollisionBoundsFadeDistance";
-	static const char * const k_pch_CollisionBounds_ColorGammaR_Int32 = "CollisionBoundsColorGammaR";
-	static const char * const k_pch_CollisionBounds_ColorGammaG_Int32 = "CollisionBoundsColorGammaG";
-	static const char * const k_pch_CollisionBounds_ColorGammaB_Int32 = "CollisionBoundsColorGammaB";
-	static const char * const k_pch_CollisionBounds_ColorGammaA_Int32 = "CollisionBoundsColorGammaA";
-
-	//-----------------------------------------------------------------------------
-	// camera keys
-	static const char * const k_pch_Camera_Section = "camera";
-	static const char * const k_pch_Camera_EnableCamera_Bool = "enableCamera";
-	static const char * const k_pch_Camera_EnableCameraInDashboard_Bool = "enableCameraInDashboard";
-	static const char * const k_pch_Camera_EnableCameraForCollisionBounds_Bool = "enableCameraForCollisionBounds";
-	static const char * const k_pch_Camera_EnableCameraForRoomView_Bool = "enableCameraForRoomView";
-	static const char * const k_pch_Camera_BoundsColorGammaR_Int32 = "cameraBoundsColorGammaR";
-	static const char * const k_pch_Camera_BoundsColorGammaG_Int32 = "cameraBoundsColorGammaG";
-	static const char * const k_pch_Camera_BoundsColorGammaB_Int32 = "cameraBoundsColorGammaB";
-	static const char * const k_pch_Camera_BoundsColorGammaA_Int32 = "cameraBoundsColorGammaA";
-
-	//-----------------------------------------------------------------------------
-	// audio keys
-	static const char * const k_pch_audio_Section = "audio";
-	static const char * const k_pch_audio_OnPlaybackDevice_String = "onPlaybackDevice";
-	static const char * const k_pch_audio_OnRecordDevice_String = "onRecordDevice";
-	static const char * const k_pch_audio_OnPlaybackMirrorDevice_String = "onPlaybackMirrorDevice";
-	static const char * const k_pch_audio_OffPlaybackDevice_String = "offPlaybackDevice";
-	static const char * const k_pch_audio_OffRecordDevice_String = "offRecordDevice";
-	static const char * const k_pch_audio_VIVEHDMIGain = "viveHDMIGain";
-
-	//-----------------------------------------------------------------------------
-	// model skin keys
-	static const char * const k_pch_modelskin_Section = "modelskins";
-
-} // namespace vr
-
-// ivrchaperone.h
-namespace vr
-{
-
-#if defined(__linux__) || defined(__APPLE__) 
-	// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
-	// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
-	// The 64-bit version of gcc has the alignment requirement for these types set to
-	// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
-	// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
-	#pragma pack( push, 4 )
-#else
-	#pragma pack( push, 8 )
-#endif
-
-enum ChaperoneCalibrationState
-{
-	// OK!
-	ChaperoneCalibrationState_OK = 1,									// Chaperone is fully calibrated and working correctly
-
-	// Warnings
-	ChaperoneCalibrationState_Warning = 100,
-	ChaperoneCalibrationState_Warning_BaseStationMayHaveMoved = 101,	// A base station thinks that it might have moved
-	ChaperoneCalibrationState_Warning_BaseStationRemoved = 102,			// There are less base stations than when calibrated
-	ChaperoneCalibrationState_Warning_SeatedBoundsInvalid = 103,		// Seated bounds haven't been calibrated for the current tracking center
-
-	// Errors
-	ChaperoneCalibrationState_Error = 200,								// The UniverseID is invalid
-	ChaperoneCalibrationState_Error_BaseStationUninitalized = 201,		// Tracking center hasn't be calibrated for at least one of the base stations
-	ChaperoneCalibrationState_Error_BaseStationConflict = 202,			// Tracking center is calibrated, but base stations disagree on the tracking space
-	ChaperoneCalibrationState_Error_PlayAreaInvalid = 203,				// Play Area hasn't been calibrated for the current tracking center
-	ChaperoneCalibrationState_Error_CollisionBoundsInvalid = 204,		// Collision Bounds haven't been calibrated for the current tracking center
-};
-
-
-/** HIGH LEVEL TRACKING SPACE ASSUMPTIONS:
-* 0,0,0 is the preferred standing area center.
-* 0Y is the floor height.
-* -Z is the preferred forward facing direction. */
-class IVRChaperone
-{
-public:
-
-	/** Get the current state of Chaperone calibration. This state can change at any time during a session due to physical base station changes. **/
-	virtual ChaperoneCalibrationState GetCalibrationState() = 0;
-
-	/** Returns the width and depth of the Play Area (formerly named Soft Bounds) in X and Z. 
-	* Tracking space center (0,0,0) is the center of the Play Area. **/
-	virtual bool GetPlayAreaSize( float *pSizeX, float *pSizeZ ) = 0;
-
-	/** Returns the 4 corner positions of the Play Area (formerly named Soft Bounds).
-	* Corners are in counter-clockwise order.
-	* Standing center (0,0,0) is the center of the Play Area.
-	* It's a rectangle.
-	* 2 sides are parallel to the X axis and 2 sides are parallel to the Z axis.
-	* Height of every corner is 0Y (on the floor). **/
-	virtual bool GetPlayAreaRect( HmdQuad_t *rect ) = 0;
-
-	/** Reload Chaperone data from the .vrchap file on disk. */
-	virtual void ReloadInfo( void ) = 0;
-
-	/** Optionally give the chaperone system a hit about the color and brightness in the scene **/
-	virtual void SetSceneColor( HmdColor_t color ) = 0;
-
-	/** Get the current chaperone bounds draw color and brightness **/
-	virtual void GetBoundsColor( HmdColor_t *pOutputColorArray, int nNumOutputColors, float flCollisionBoundsFadeDistance, HmdColor_t *pOutputCameraColor ) = 0;
-
-	/** Determine whether the bounds are showing right now **/
-	virtual bool AreBoundsVisible() = 0;
-
-	/** Force the bounds to show, mostly for utilities **/
-	virtual void ForceBoundsVisible( bool bForce ) = 0;
-};
-
-static const char * const IVRChaperone_Version = "IVRChaperone_003";
-
-#pragma pack( pop )
-
-}
-
-// ivrchaperonesetup.h
-namespace vr
-{
-
-enum EChaperoneConfigFile
-{
-	EChaperoneConfigFile_Live = 1,		// The live chaperone config, used by most applications and games
-	EChaperoneConfigFile_Temp = 2,		// The temporary chaperone config, used to live-preview collision bounds in room setup
-};
-
-enum EChaperoneImportFlags
-{
-	EChaperoneImport_BoundsOnly = 0x0001,
-};
-
-/** Manages the working copy of the chaperone info. By default this will be the same as the 
-* live copy. Any changes made with this interface will stay in the working copy until 
-* CommitWorkingCopy() is called, at which point the working copy and the live copy will be 
-* the same again. */
-class IVRChaperoneSetup
-{
-public:
-
-	/** Saves the current working copy to disk */
-	virtual bool CommitWorkingCopy( EChaperoneConfigFile configFile ) = 0;
-
-	/** Reverts the working copy to match the live chaperone calibration.
-	* To modify existing data this MUST be do WHILE getting a non-error ChaperoneCalibrationStatus.
-	* Only after this should you do gets and sets on the existing data. */
-	virtual void RevertWorkingCopy() = 0;
-
-	/** Returns the width and depth of the Play Area (formerly named Soft Bounds) in X and Z from the working copy.
-	* Tracking space center (0,0,0) is the center of the Play Area. */
-	virtual bool GetWorkingPlayAreaSize( float *pSizeX, float *pSizeZ ) = 0;
-
-	/** Returns the 4 corner positions of the Play Area (formerly named Soft Bounds) from the working copy.
-	* Corners are in clockwise order.
-	* Tracking space center (0,0,0) is the center of the Play Area.
-	* It's a rectangle.
-	* 2 sides are parallel to the X axis and 2 sides are parallel to the Z axis.
-	* Height of every corner is 0Y (on the floor). **/
-	virtual bool GetWorkingPlayAreaRect( HmdQuad_t *rect ) = 0;
-
-	/** Returns the number of Quads if the buffer points to null. Otherwise it returns Quads 
-	* into the buffer up to the max specified from the working copy. */
-	virtual bool GetWorkingCollisionBoundsInfo( VR_OUT_ARRAY_COUNT(punQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t* punQuadsCount ) = 0;
-
-	/** Returns the number of Quads if the buffer points to null. Otherwise it returns Quads 
-	* into the buffer up to the max specified. */
-	virtual bool GetLiveCollisionBoundsInfo( VR_OUT_ARRAY_COUNT(punQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t* punQuadsCount ) = 0;
-
-	/** Returns the preferred seated position from the working copy. */
-	virtual bool GetWorkingSeatedZeroPoseToRawTrackingPose( HmdMatrix34_t *pmatSeatedZeroPoseToRawTrackingPose ) = 0;
-
-	/** Returns the standing origin from the working copy. */
-	virtual bool GetWorkingStandingZeroPoseToRawTrackingPose( HmdMatrix34_t *pmatStandingZeroPoseToRawTrackingPose ) = 0;
-
-	/** Sets the Play Area in the working copy. */
-	virtual void SetWorkingPlayAreaSize( float sizeX, float sizeZ ) = 0;
-
-	/** Sets the Collision Bounds in the working copy. */
-	virtual void SetWorkingCollisionBoundsInfo( VR_ARRAY_COUNT(unQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t unQuadsCount ) = 0;
-
-	/** Sets the preferred seated position in the working copy. */
-	virtual void SetWorkingSeatedZeroPoseToRawTrackingPose( const HmdMatrix34_t *pMatSeatedZeroPoseToRawTrackingPose ) = 0;
-
-	/** Sets the preferred standing position in the working copy. */
-	virtual void SetWorkingStandingZeroPoseToRawTrackingPose( const HmdMatrix34_t *pMatStandingZeroPoseToRawTrackingPose ) = 0;
-
-	/** Tear everything down and reload it from the file on disk */
-	virtual void ReloadFromDisk( EChaperoneConfigFile configFile ) = 0;
-
-	/** Returns the preferred seated position. */
-	virtual bool GetLiveSeatedZeroPoseToRawTrackingPose( HmdMatrix34_t *pmatSeatedZeroPoseToRawTrackingPose ) = 0;
-
-	virtual void SetWorkingCollisionBoundsTagsInfo( VR_ARRAY_COUNT(unTagCount) uint8_t *pTagsBuffer, uint32_t unTagCount ) = 0;
-	virtual bool GetLiveCollisionBoundsTagsInfo( VR_OUT_ARRAY_COUNT(punTagCount) uint8_t *pTagsBuffer, uint32_t *punTagCount ) = 0;
-
-	virtual bool SetWorkingPhysicalBoundsInfo( VR_ARRAY_COUNT(unQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t unQuadsCount ) = 0;
-	virtual bool GetLivePhysicalBoundsInfo( VR_OUT_ARRAY_COUNT(punQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t* punQuadsCount ) = 0;
-
-	virtual bool ExportLiveToBuffer( VR_OUT_STRING() char *pBuffer, uint32_t *pnBufferLength ) = 0;
-	virtual bool ImportFromBufferToWorking( const char *pBuffer, uint32_t nImportFlags ) = 0;
-};
-
-static const char * const IVRChaperoneSetup_Version = "IVRChaperoneSetup_005";
-
-
-}
-
-// ivrcompositor.h
-namespace vr
-{
-
-#if defined(__linux__) || defined(__APPLE__) 
-	// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
-	// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
-	// The 64-bit version of gcc has the alignment requirement for these types set to
-	// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
-	// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
-	#pragma pack( push, 4 )
-#else
-	#pragma pack( push, 8 )
-#endif
-
-/** Errors that can occur with the VR compositor */
-enum EVRCompositorError
-{
-	VRCompositorError_None						= 0,
-	VRCompositorError_RequestFailed				= 1,
-	VRCompositorError_IncompatibleVersion		= 100,
-	VRCompositorError_DoNotHaveFocus			= 101,
-	VRCompositorError_InvalidTexture			= 102,
-	VRCompositorError_IsNotSceneApplication		= 103,
-	VRCompositorError_TextureIsOnWrongDevice	= 104,
-	VRCompositorError_TextureUsesUnsupportedFormat = 105,
-	VRCompositorError_SharedTexturesNotSupported = 106,
-	VRCompositorError_IndexOutOfRange			= 107,
-};
-
-const uint32_t VRCompositor_ReprojectionReason_Cpu = 0x01;
-const uint32_t VRCompositor_ReprojectionReason_Gpu = 0x02;
-
-/** Provides a single frame's timing information to the app */
-struct Compositor_FrameTiming
-{
-	uint32_t m_nSize; // Set to sizeof( Compositor_FrameTiming )
-	uint32_t m_nFrameIndex;
-	uint32_t m_nNumFramePresents; // number of times this frame was presented
-	uint32_t m_nNumDroppedFrames; // number of additional times previous frame was scanned out
-	uint32_t m_nReprojectionFlags;
-
-	/** Absolute time reference for comparing frames.  This aligns with the vsync that running start is relative to. */
-	double m_flSystemTimeInSeconds;
-
-	/** These times may include work from other processes due to OS scheduling.
-	* The fewer packets of work these are broken up into, the less likely this will happen.
-	* GPU work can be broken up by calling Flush.  This can sometimes be useful to get the GPU started
-	* processing that work earlier in the frame. */
-	float m_flPreSubmitGpuMs; // time spent rendering the scene (gpu work submitted between WaitGetPoses and second Submit)
-	float m_flPostSubmitGpuMs; // additional time spent rendering by application (e.g. companion window)
-	float m_flTotalRenderGpuMs; // time between work submitted immediately after present (ideally vsync) until the end of compositor submitted work
-	float m_flCompositorRenderGpuMs; // time spend performing distortion correction, rendering chaperone, overlays, etc.
-	float m_flCompositorRenderCpuMs; // time spent on cpu submitting the above work for this frame
-	float m_flCompositorIdleCpuMs; // time spent waiting for running start (application could have used this much more time)
-
-	/** Miscellaneous measured intervals. */
-	float m_flClientFrameIntervalMs; // time between calls to WaitGetPoses
-	float m_flPresentCallCpuMs; // time blocked on call to present (usually 0.0, but can go long)
-	float m_flWaitForPresentCpuMs; // time spent spin-waiting for frame index to change (not near-zero indicates wait object failure)
-	float m_flSubmitFrameMs; // time spent in IVRCompositor::Submit (not near-zero indicates driver issue)
-
-	/** The following are all relative to this frame's SystemTimeInSeconds */
-	float m_flWaitGetPosesCalledMs;
-	float m_flNewPosesReadyMs;
-	float m_flNewFrameReadyMs; // second call to IVRCompositor::Submit
-	float m_flCompositorUpdateStartMs;
-	float m_flCompositorUpdateEndMs;
-	float m_flCompositorRenderStartMs;
-
-	vr::TrackedDevicePose_t m_HmdPose; // pose used by app to render this frame
-};
-
-/** Cumulative stats for current application.  These are not cleared until a new app connects,
-* but they do stop accumulating once the associated app disconnects. */
-struct Compositor_CumulativeStats
-{
-	uint32_t m_nPid; // Process id associated with these stats (may no longer be running).
-	uint32_t m_nNumFramePresents; // total number of times we called present (includes reprojected frames)
-	uint32_t m_nNumDroppedFrames; // total number of times an old frame was re-scanned out (without reprojection)
-	uint32_t m_nNumReprojectedFrames; // total number of times a frame was scanned out a second time (with reprojection)
-
-	/** Values recorded at startup before application has fully faded in the first time. */
-	uint32_t m_nNumFramePresentsOnStartup;
-	uint32_t m_nNumDroppedFramesOnStartup;
-	uint32_t m_nNumReprojectedFramesOnStartup;
-
-	/** Applications may explicitly fade to the compositor.  This is usually to handle level transitions, and loading often causes
-	* system wide hitches.  The following stats are collected during this period.  Does not include values recorded during startup. */
-	uint32_t m_nNumLoading;
-	uint32_t m_nNumFramePresentsLoading;
-	uint32_t m_nNumDroppedFramesLoading;
-	uint32_t m_nNumReprojectedFramesLoading;
-
-	/** If we don't get a new frame from the app in less than 2.5 frames, then we assume the app has hung and start
-	* fading back to the compositor.  The following stats are a result of this, and are a subset of those recorded above.
-	* Does not include values recorded during start up or loading. */
-	uint32_t m_nNumTimedOut;
-	uint32_t m_nNumFramePresentsTimedOut;
-	uint32_t m_nNumDroppedFramesTimedOut;
-	uint32_t m_nNumReprojectedFramesTimedOut;
-};
-
-#pragma pack( pop )
-
-/** Allows the application to interact with the compositor */
-class IVRCompositor
-{
-public:
-	/** Sets tracking space returned by WaitGetPoses */
-	virtual void SetTrackingSpace( ETrackingUniverseOrigin eOrigin ) = 0;
-
-	/** Gets current tracking space returned by WaitGetPoses */
-	virtual ETrackingUniverseOrigin GetTrackingSpace() = 0;
-
-	/** Returns pose(s) to use to render scene (and optionally poses predicted two frames out for gameplay). */
-	virtual EVRCompositorError WaitGetPoses( VR_ARRAY_COUNT(unRenderPoseArrayCount) TrackedDevicePose_t* pRenderPoseArray, uint32_t unRenderPoseArrayCount,
-		VR_ARRAY_COUNT(unGamePoseArrayCount) TrackedDevicePose_t* pGamePoseArray, uint32_t unGamePoseArrayCount ) = 0;
-
-	/** Get the last set of poses returned by WaitGetPoses. */
-	virtual EVRCompositorError GetLastPoses( VR_ARRAY_COUNT( unRenderPoseArrayCount ) TrackedDevicePose_t* pRenderPoseArray, uint32_t unRenderPoseArrayCount,
-		VR_ARRAY_COUNT( unGamePoseArrayCount ) TrackedDevicePose_t* pGamePoseArray, uint32_t unGamePoseArrayCount ) = 0;
-
-	/** Interface for accessing last set of poses returned by WaitGetPoses one at a time.
-	* Returns VRCompositorError_IndexOutOfRange if unDeviceIndex not less than k_unMaxTrackedDeviceCount otherwise VRCompositorError_None.
-	* It is okay to pass NULL for either pose if you only want one of the values. */
-	virtual EVRCompositorError GetLastPoseForTrackedDeviceIndex( TrackedDeviceIndex_t unDeviceIndex, TrackedDevicePose_t *pOutputPose, TrackedDevicePose_t *pOutputGamePose ) = 0;
-
-	/** Updated scene texture to display. If pBounds is NULL the entire texture will be used.  If called from an OpenGL app, consider adding a glFlush after
-	* Submitting both frames to signal the driver to start processing, otherwise it may wait until the command buffer fills up, causing the app to miss frames.
-	*
-	* OpenGL dirty state:
-	*	glBindTexture
-	*/
-	virtual EVRCompositorError Submit( EVREye eEye, const Texture_t *pTexture, const VRTextureBounds_t* pBounds = 0, EVRSubmitFlags nSubmitFlags = Submit_Default ) = 0;
-
-	/** Clears the frame that was sent with the last call to Submit. This will cause the 
-	* compositor to show the grid until Submit is called again. */
-	virtual void ClearLastSubmittedFrame() = 0;
-
-	/** Call immediately after presenting your app's window (i.e. companion window) to unblock the compositor.
-	* This is an optional call, which only needs to be used if you can't instead call WaitGetPoses immediately after Present.
-	* For example, if your engine's render and game loop are not on separate threads, or blocking the render thread until 3ms before the next vsync would
-	* introduce a deadlock of some sort.  This function tells the compositor that you have finished all rendering after having Submitted buffers for both
-	* eyes, and it is free to start its rendering work.  This should only be called from the same thread you are rendering on. */
-	virtual void PostPresentHandoff() = 0;
-
-	/** Returns true if timing data is filled it.  Sets oldest timing info if nFramesAgo is larger than the stored history.
-	* Be sure to set timing.size = sizeof(Compositor_FrameTiming) on struct passed in before calling this function. */
-	virtual bool GetFrameTiming( Compositor_FrameTiming *pTiming, uint32_t unFramesAgo = 0 ) = 0;
-
-	/** Returns the time in seconds left in the current (as identified by FrameTiming's frameIndex) frame.
-	* Due to "running start", this value may roll over to the next frame before ever reaching 0.0. */
-	virtual float GetFrameTimeRemaining() = 0;
-
-	/** Fills out stats accumulated for the last connected application.  Pass in sizeof( Compositor_CumulativeStats ) as second parameter. */
-	virtual void GetCumulativeStats( Compositor_CumulativeStats *pStats, uint32_t nStatsSizeInBytes ) = 0;
-
-	/** Fades the view on the HMD to the specified color. The fade will take fSeconds, and the color values are between
-	* 0.0 and 1.0. This color is faded on top of the scene based on the alpha parameter. Removing the fade color instantly 
-	* would be FadeToColor( 0.0, 0.0, 0.0, 0.0, 0.0 ).  Values are in un-premultiplied alpha space. */
-	virtual void FadeToColor( float fSeconds, float fRed, float fGreen, float fBlue, float fAlpha, bool bBackground = false ) = 0;
-
-	/** Fading the Grid in or out in fSeconds */
-	virtual void FadeGrid( float fSeconds, bool bFadeIn ) = 0;
-
-	/** Override the skybox used in the compositor (e.g. for during level loads when the app can't feed scene images fast enough)
-	* Order is Front, Back, Left, Right, Top, Bottom.  If only a single texture is passed, it is assumed in lat-long format.
-	* If two are passed, it is assumed a lat-long stereo pair. */
-	virtual EVRCompositorError SetSkyboxOverride( VR_ARRAY_COUNT( unTextureCount ) const Texture_t *pTextures, uint32_t unTextureCount ) = 0;
-
-	/** Resets compositor skybox back to defaults. */
-	virtual void ClearSkyboxOverride() = 0;
-
-	/** Brings the compositor window to the front. This is useful for covering any other window that may be on the HMD
-	* and is obscuring the compositor window. */
-	virtual void CompositorBringToFront() = 0;
-
-	/** Pushes the compositor window to the back. This is useful for allowing other applications to draw directly to the HMD. */
-	virtual void CompositorGoToBack() = 0;
-
-	/** Tells the compositor process to clean up and exit. You do not need to call this function at shutdown. Under normal 
-	* circumstances the compositor will manage its own life cycle based on what applications are running. */
-	virtual void CompositorQuit() = 0;
-	
-	/** Return whether the compositor is fullscreen */
-	virtual bool IsFullscreen() = 0;
-
-	/** Returns the process ID of the process that is currently rendering the scene */
-	virtual uint32_t GetCurrentSceneFocusProcess() = 0;
-
-	/** Returns the process ID of the process that rendered the last frame (or 0 if the compositor itself rendered the frame.)
-	* Returns 0 when fading out from an app and the app's process Id when fading into an app. */
-	virtual uint32_t GetLastFrameRenderer() = 0;
-
-	/** Returns true if the current process has the scene focus */
-	virtual bool CanRenderScene() = 0;
-
-	/** Creates a window on the primary monitor to display what is being shown in the headset. */
-	virtual void ShowMirrorWindow() = 0;
-
-	/** Closes the mirror window. */
-	virtual void HideMirrorWindow() = 0;
-
-	/** Returns true if the mirror window is shown. */
-	virtual bool IsMirrorWindowVisible() = 0;
-
-	/** Writes all images that the compositor knows about (including overlays) to a 'screenshots' folder in the SteamVR runtime root. */
-	virtual void CompositorDumpImages() = 0;
-
-	/** Let an app know it should be rendering with low resources. */
-	virtual bool ShouldAppRenderWithLowResources() = 0;
-
-	/** Override interleaved reprojection logic to force on. */
-	virtual void ForceInterleavedReprojectionOn( bool bOverride ) = 0;
-
-	/** Force reconnecting to the compositor process. */
-	virtual void ForceReconnectProcess() = 0;
-
-	/** Temporarily suspends rendering (useful for finer control over scene transitions). */
-	virtual void SuspendRendering( bool bSuspend ) = 0;
-
-	/** Opens a shared D3D11 texture with the undistorted composited image for each eye. */
-	virtual vr::EVRCompositorError GetMirrorTextureD3D11( vr::EVREye eEye, void *pD3D11DeviceOrResource, void **ppD3D11ShaderResourceView ) = 0;
-
-	/** Access to mirror textures from OpenGL. */
-	virtual vr::EVRCompositorError GetMirrorTextureGL( vr::EVREye eEye, vr::glUInt_t *pglTextureId, vr::glSharedTextureHandle_t *pglSharedTextureHandle ) = 0;
-	virtual bool ReleaseSharedGLTexture( vr::glUInt_t glTextureId, vr::glSharedTextureHandle_t glSharedTextureHandle ) = 0;
-	virtual void LockGLSharedTextureForAccess( vr::glSharedTextureHandle_t glSharedTextureHandle ) = 0;
-	virtual void UnlockGLSharedTextureForAccess( vr::glSharedTextureHandle_t glSharedTextureHandle ) = 0;
-};
-
-static const char * const IVRCompositor_Version = "IVRCompositor_016";
-
-} // namespace vr
-
-
-
-// ivrnotifications.h
-namespace vr
-{
-
-#if defined(__linux__) || defined(__APPLE__) 
-	// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
-	// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
-	// The 64-bit version of gcc has the alignment requirement for these types set to
-	// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
-	// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
-	#pragma pack( push, 4 )
-#else
-	#pragma pack( push, 8 )
-#endif
-
-// Used for passing graphic data
-struct NotificationBitmap_t
-{
-	NotificationBitmap_t()
-		: m_pImageData( nullptr )
-		, m_nWidth( 0 )
-		, m_nHeight( 0 )
-		, m_nBytesPerPixel( 0 )
-	{
-	};
-
-	void *m_pImageData;
-	int32_t m_nWidth;
-	int32_t m_nHeight;
-	int32_t m_nBytesPerPixel;
-};
-
-
-/** Be aware that the notification type is used as 'priority' to pick the next notification */
-enum EVRNotificationType
-{
-	/** Transient notifications are automatically hidden after a period of time set by the user. 
-	* They are used for things like information and chat messages that do not require user interaction. */
-	EVRNotificationType_Transient = 0,
-
-	/** Persistent notifications are shown to the user until they are hidden by calling RemoveNotification().
-	* They are used for things like phone calls and alarms that require user interaction. */
-	EVRNotificationType_Persistent = 1,
-
-	/** System notifications are shown no matter what. It is expected, that the ulUserValue is used as ID.
-	 * If there is already a system notification in the queue with that ID it is not accepted into the queue
-	 * to prevent spamming with system notification */
-	EVRNotificationType_Transient_SystemWithUserValue = 2,
-};
-
-enum EVRNotificationStyle
-{
-	/** Creates a notification with minimal external styling. */
-	EVRNotificationStyle_None = 0,
-
-	/** Used for notifications about overlay-level status. In Steam this is used for events like downloads completing. */
-	EVRNotificationStyle_Application = 100,
-
-	/** Used for notifications about contacts that are unknown or not available. In Steam this is used for friend invitations and offline friends. */
-	EVRNotificationStyle_Contact_Disabled = 200,
-
-	/** Used for notifications about contacts that are available but inactive. In Steam this is used for friends that are online but not playing a game. */
-	EVRNotificationStyle_Contact_Enabled = 201,
-
-	/** Used for notifications about contacts that are available and active. In Steam this is used for friends that are online and currently running a game. */
-	EVRNotificationStyle_Contact_Active = 202,
-};
-
-static const uint32_t k_unNotificationTextMaxSize = 256;
-
-typedef uint32_t VRNotificationId;
-
-
-
-#pragma pack( pop )
-
-/** Allows notification sources to interact with the VR system
-	This current interface is not yet implemented. Do not use yet. */
-class IVRNotifications
-{
-public:
-	/** Create a notification and enqueue it to be shown to the user.
-	* An overlay handle is required to create a notification, as otherwise it would be impossible for a user to act on it.
-	* To create a two-line notification, use a line break ('\n') to split the text into two lines.
-	* The pImage argument may be NULL, in which case the specified overlay's icon will be used instead. */
-	virtual EVRNotificationError CreateNotification( VROverlayHandle_t ulOverlayHandle, uint64_t ulUserValue, EVRNotificationType type, const char *pchText, EVRNotificationStyle style, const NotificationBitmap_t *pImage, /* out */ VRNotificationId *pNotificationId ) = 0;
-
-	/** Destroy a notification, hiding it first if it currently shown to the user. */
-	virtual EVRNotificationError RemoveNotification( VRNotificationId notificationId ) = 0;
-
-};
-
-static const char * const IVRNotifications_Version = "IVRNotifications_002";
-
-} // namespace vr
-
-
-
-// ivroverlay.h
-namespace vr
-{
-
-	/** The maximum length of an overlay key in bytes, counting the terminating null character. */
-	static const uint32_t k_unVROverlayMaxKeyLength = 128;
-
-	/** The maximum length of an overlay name in bytes, counting the terminating null character. */
-	static const uint32_t k_unVROverlayMaxNameLength = 128;
-
-	/** The maximum number of overlays that can exist in the system at one time. */
-	static const uint32_t k_unMaxOverlayCount = 64;
-
-	/** Types of input supported by VR Overlays */
-	enum VROverlayInputMethod
-	{
-		VROverlayInputMethod_None		= 0, // No input events will be generated automatically for this overlay
-		VROverlayInputMethod_Mouse		= 1, // Tracked controllers will get mouse events automatically
-	};
-
-	/** Allows the caller to figure out which overlay transform getter to call. */
-	enum VROverlayTransformType
-	{
-		VROverlayTransform_Absolute					= 0,
-		VROverlayTransform_TrackedDeviceRelative	= 1,
-		VROverlayTransform_SystemOverlay			= 2,
-		VROverlayTransform_TrackedComponent 		= 3,
-	};
-
-	/** Overlay control settings */
-	enum VROverlayFlags
-	{
-		VROverlayFlags_None			= 0,
-
-		// The following only take effect when rendered using the high quality render path (see SetHighQualityOverlay).
-		VROverlayFlags_Curved		= 1,
-		VROverlayFlags_RGSS4X		= 2,
-
-		// Set this flag on a dashboard overlay to prevent a tab from showing up for that overlay
-		VROverlayFlags_NoDashboardTab = 3,
-
-		// Set this flag on a dashboard that is able to deal with gamepad focus events
-		VROverlayFlags_AcceptsGamepadEvents = 4,
-
-		// Indicates that the overlay should dim/brighten to show gamepad focus
-		VROverlayFlags_ShowGamepadFocus = 5,
-
-		// When in VROverlayInputMethod_Mouse you can optionally enable sending VRScroll_t 
-		VROverlayFlags_SendVRScrollEvents = 6,
-		VROverlayFlags_SendVRTouchpadEvents = 7,
-
-		// If set this will render a vertical scroll wheel on the primary controller, 
-		//  only needed if not using VROverlayFlags_SendVRScrollEvents but you still want to represent a scroll wheel
-		VROverlayFlags_ShowTouchPadScrollWheel = 8,
-
-		// If this is set ownership and render access to the overlay are transferred 
-		// to the new scene process on a call to IVRApplications::LaunchInternalProcess
-		VROverlayFlags_TransferOwnershipToInternalProcess = 9,
-
-		// If set, renders 50% of the texture in each eye, side by side
-		VROverlayFlags_SideBySide_Parallel = 10, // Texture is left/right
-		VROverlayFlags_SideBySide_Crossed = 11, // Texture is crossed and right/left
-
-		VROverlayFlags_Panorama = 12, // Texture is a panorama
-		VROverlayFlags_StereoPanorama = 13, // Texture is a stereo panorama
-
-		// If this is set on an overlay owned by the scene application that overlay
-		// will be sorted with the "Other" overlays on top of all other scene overlays
-		VROverlayFlags_SortWithNonSceneOverlays = 14,
-	};
-
-	struct VROverlayIntersectionParams_t
-	{
-		HmdVector3_t vSource;
-		HmdVector3_t vDirection;
-		ETrackingUniverseOrigin eOrigin;
-	};
-
-	struct VROverlayIntersectionResults_t
-	{
-		HmdVector3_t vPoint;
-		HmdVector3_t vNormal;
-		HmdVector2_t vUVs;
-		float fDistance;
-	};
-
-	// Input modes for the Big Picture gamepad text entry
-	enum EGamepadTextInputMode
-	{
-		k_EGamepadTextInputModeNormal = 0,
-		k_EGamepadTextInputModePassword = 1,
-		k_EGamepadTextInputModeSubmit = 2,
-	};
-
-	// Controls number of allowed lines for the Big Picture gamepad text entry
-	enum EGamepadTextInputLineMode
-	{
-		k_EGamepadTextInputLineModeSingleLine = 0,
-		k_EGamepadTextInputLineModeMultipleLines = 1
-	};
-
-	/** Directions for changing focus between overlays with the gamepad */
-	enum EOverlayDirection
-	{
-		OverlayDirection_Up = 0,
-		OverlayDirection_Down = 1,
-		OverlayDirection_Left = 2,
-		OverlayDirection_Right = 3,
-		
-		OverlayDirection_Count = 4,
-	};
-
-	class IVROverlay
-	{
-	public:
-
-		// ---------------------------------------------
-		// Overlay management methods
-		// ---------------------------------------------
-
-		/** Finds an existing overlay with the specified key. */
-		virtual EVROverlayError FindOverlay( const char *pchOverlayKey, VROverlayHandle_t * pOverlayHandle ) = 0;
-
-		/** Creates a new named overlay. All overlays start hidden and with default settings. */
-		virtual EVROverlayError CreateOverlay( const char *pchOverlayKey, const char *pchOverlayFriendlyName, VROverlayHandle_t * pOverlayHandle ) = 0;
-
-		/** Destroys the specified overlay. When an application calls VR_Shutdown all overlays created by that app are
-		* automatically destroyed. */
-		virtual EVROverlayError DestroyOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Specify which overlay to use the high quality render path.  This overlay will be composited in during the distortion pass which
-		* results in it drawing on top of everything else, but also at a higher quality as it samples the source texture directly rather than
-		* rasterizing into each eye's render texture first.  Because if this, only one of these is supported at any given time.  It is most useful
-		* for overlays that are expected to take up most of the user's view (e.g. streaming video).
-		* This mode does not support mouse input to your overlay. */
-		virtual EVROverlayError SetHighQualityOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Returns the overlay handle of the current overlay being rendered using the single high quality overlay render path.
-		* Otherwise it will return k_ulOverlayHandleInvalid. */
-		virtual vr::VROverlayHandle_t GetHighQualityOverlay() = 0;
-
-		/** Fills the provided buffer with the string key of the overlay. Returns the size of buffer required to store the key, including
-		* the terminating null character. k_unVROverlayMaxKeyLength will be enough bytes to fit the string. */
-		virtual uint32_t GetOverlayKey( VROverlayHandle_t ulOverlayHandle, VR_OUT_STRING() char *pchValue, uint32_t unBufferSize, EVROverlayError *pError = 0L ) = 0;
-
-		/** Fills the provided buffer with the friendly name of the overlay. Returns the size of buffer required to store the key, including
-		* the terminating null character. k_unVROverlayMaxNameLength will be enough bytes to fit the string. */
-		virtual uint32_t GetOverlayName( VROverlayHandle_t ulOverlayHandle, VR_OUT_STRING() char *pchValue, uint32_t unBufferSize, EVROverlayError *pError = 0L ) = 0;
-
-		/** Gets the raw image data from an overlay. Overlay image data is always returned as RGBA data, 4 bytes per pixel. If the buffer is not large enough, width and height 
-		* will be set and VROverlayError_ArrayTooSmall is returned. */
-		virtual EVROverlayError GetOverlayImageData( VROverlayHandle_t ulOverlayHandle, void *pvBuffer, uint32_t unBufferSize, uint32_t *punWidth, uint32_t *punHeight ) = 0;
-
-		/** returns a string that corresponds with the specified overlay error. The string will be the name 
-		* of the error enum value for all valid error codes */
-		virtual const char *GetOverlayErrorNameFromEnum( EVROverlayError error ) = 0;
-
-
-		// ---------------------------------------------
-		// Overlay rendering methods
-		// ---------------------------------------------
-
-		/** Sets the pid that is allowed to render to this overlay (the creator pid is always allow to render),
-		*	by default this is the pid of the process that made the overlay */
-		virtual EVROverlayError SetOverlayRenderingPid( VROverlayHandle_t ulOverlayHandle, uint32_t unPID ) = 0;
-
-		/** Gets the pid that is allowed to render to this overlay */
-		virtual uint32_t GetOverlayRenderingPid( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Specify flag setting for a given overlay */
-		virtual EVROverlayError SetOverlayFlag( VROverlayHandle_t ulOverlayHandle, VROverlayFlags eOverlayFlag, bool bEnabled ) = 0;
-
-		/** Sets flag setting for a given overlay */
-		virtual EVROverlayError GetOverlayFlag( VROverlayHandle_t ulOverlayHandle, VROverlayFlags eOverlayFlag, bool *pbEnabled ) = 0;
-
-		/** Sets the color tint of the overlay quad. Use 0.0 to 1.0 per channel. */
-		virtual EVROverlayError SetOverlayColor( VROverlayHandle_t ulOverlayHandle, float fRed, float fGreen, float fBlue ) = 0;
-
-		/** Gets the color tint of the overlay quad. */
-		virtual EVROverlayError GetOverlayColor( VROverlayHandle_t ulOverlayHandle, float *pfRed, float *pfGreen, float *pfBlue ) = 0;
-
-		/** Sets the alpha of the overlay quad. Use 1.0 for 100 percent opacity to 0.0 for 0 percent opacity. */
-		virtual EVROverlayError SetOverlayAlpha( VROverlayHandle_t ulOverlayHandle, float fAlpha ) = 0;
-
-		/** Gets the alpha of the overlay quad. By default overlays are rendering at 100 percent alpha (1.0). */
-		virtual EVROverlayError GetOverlayAlpha( VROverlayHandle_t ulOverlayHandle, float *pfAlpha ) = 0;
-
-		/** Sets the aspect ratio of the texels in the overlay. 1.0 means the texels are square. 2.0 means the texels
-		* are twice as wide as they are tall. Defaults to 1.0. */
-		virtual EVROverlayError SetOverlayTexelAspect( VROverlayHandle_t ulOverlayHandle, float fTexelAspect ) = 0;
-
-		/** Gets the aspect ratio of the texels in the overlay. Defaults to 1.0 */
-		virtual EVROverlayError GetOverlayTexelAspect( VROverlayHandle_t ulOverlayHandle, float *pfTexelAspect ) = 0;
-
-		/** Sets the rendering sort order for the overlay. Overlays are rendered this order:
-		*      Overlays owned by the scene application
-		*      Overlays owned by some other application
-		*
-		*	Within a category overlays are rendered lowest sort order to highest sort order. Overlays with the same 
-		*	sort order are rendered back to front base on distance from the HMD.
-		*
-		*	Sort order defaults to 0. */
-		virtual EVROverlayError SetOverlaySortOrder( VROverlayHandle_t ulOverlayHandle, uint32_t unSortOrder ) = 0;
-
-		/** Gets the sort order of the overlay. See SetOverlaySortOrder for how this works. */
-		virtual EVROverlayError GetOverlaySortOrder( VROverlayHandle_t ulOverlayHandle, uint32_t *punSortOrder ) = 0;
-
-		/** Sets the width of the overlay quad in meters. By default overlays are rendered on a quad that is 1 meter across */
-		virtual EVROverlayError SetOverlayWidthInMeters( VROverlayHandle_t ulOverlayHandle, float fWidthInMeters ) = 0;
-
-		/** Returns the width of the overlay quad in meters. By default overlays are rendered on a quad that is 1 meter across */
-		virtual EVROverlayError GetOverlayWidthInMeters( VROverlayHandle_t ulOverlayHandle, float *pfWidthInMeters ) = 0;
-
-		/** For high-quality curved overlays only, sets the distance range in meters from the overlay used to automatically curve
-		* the surface around the viewer.  Min is distance is when the surface will be most curved.  Max is when least curved. */
-		virtual EVROverlayError SetOverlayAutoCurveDistanceRangeInMeters( VROverlayHandle_t ulOverlayHandle, float fMinDistanceInMeters, float fMaxDistanceInMeters ) = 0;
-
-		/** For high-quality curved overlays only, gets the distance range in meters from the overlay used to automatically curve
-		* the surface around the viewer.  Min is distance is when the surface will be most curved.  Max is when least curved. */
-		virtual EVROverlayError GetOverlayAutoCurveDistanceRangeInMeters( VROverlayHandle_t ulOverlayHandle, float *pfMinDistanceInMeters, float *pfMaxDistanceInMeters ) = 0;
-
-		/** Sets the colorspace the overlay texture's data is in.  Defaults to 'auto'.
-		* If the texture needs to be resolved, you should call SetOverlayTexture with the appropriate colorspace instead. */
-		virtual EVROverlayError SetOverlayTextureColorSpace( VROverlayHandle_t ulOverlayHandle, EColorSpace eTextureColorSpace ) = 0;
-
-		/** Gets the overlay's current colorspace setting. */
-		virtual EVROverlayError GetOverlayTextureColorSpace( VROverlayHandle_t ulOverlayHandle, EColorSpace *peTextureColorSpace ) = 0;
-
-		/** Sets the part of the texture to use for the overlay. UV Min is the upper left corner and UV Max is the lower right corner. */
-		virtual EVROverlayError SetOverlayTextureBounds( VROverlayHandle_t ulOverlayHandle, const VRTextureBounds_t *pOverlayTextureBounds ) = 0;
-
-		/** Gets the part of the texture to use for the overlay. UV Min is the upper left corner and UV Max is the lower right corner. */
-		virtual EVROverlayError GetOverlayTextureBounds( VROverlayHandle_t ulOverlayHandle, VRTextureBounds_t *pOverlayTextureBounds ) = 0;
-
-		/** Returns the transform type of this overlay. */
-		virtual EVROverlayError GetOverlayTransformType( VROverlayHandle_t ulOverlayHandle, VROverlayTransformType *peTransformType ) = 0;
-
-		/** Sets the transform to absolute tracking origin. */
-		virtual EVROverlayError SetOverlayTransformAbsolute( VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin eTrackingOrigin, const HmdMatrix34_t *pmatTrackingOriginToOverlayTransform ) = 0;
-
-		/** Gets the transform if it is absolute. Returns an error if the transform is some other type. */
-		virtual EVROverlayError GetOverlayTransformAbsolute( VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin *peTrackingOrigin, HmdMatrix34_t *pmatTrackingOriginToOverlayTransform ) = 0;
-
-		/** Sets the transform to relative to the transform of the specified tracked device. */
-		virtual EVROverlayError SetOverlayTransformTrackedDeviceRelative( VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unTrackedDevice, const HmdMatrix34_t *pmatTrackedDeviceToOverlayTransform ) = 0;
-
-		/** Gets the transform if it is relative to a tracked device. Returns an error if the transform is some other type. */
-		virtual EVROverlayError GetOverlayTransformTrackedDeviceRelative( VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t *punTrackedDevice, HmdMatrix34_t *pmatTrackedDeviceToOverlayTransform ) = 0;
-
-		/** Sets the transform to draw the overlay on a rendermodel component mesh instead of a quad. This will only draw when the system is
-		* drawing the device. Overlays with this transform type cannot receive mouse events. */
-		virtual EVROverlayError SetOverlayTransformTrackedDeviceComponent( VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unDeviceIndex, const char *pchComponentName ) = 0;
-
-		/** Gets the transform information when the overlay is rendering on a component. */
-		virtual EVROverlayError GetOverlayTransformTrackedDeviceComponent( VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t *punDeviceIndex, char *pchComponentName, uint32_t unComponentNameSize ) = 0;
-
-		/** Shows the VR overlay.  For dashboard overlays, only the Dashboard Manager is allowed to call this. */
-		virtual EVROverlayError ShowOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Hides the VR overlay.  For dashboard overlays, only the Dashboard Manager is allowed to call this. */
-		virtual EVROverlayError HideOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Returns true if the overlay is visible. */
-		virtual bool IsOverlayVisible( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Get the transform in 3d space associated with a specific 2d point in the overlay's coordinate space (where 0,0 is the lower left). -Z points out of the overlay */
-		virtual EVROverlayError GetTransformForOverlayCoordinates( VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin eTrackingOrigin, HmdVector2_t coordinatesInOverlay, HmdMatrix34_t *pmatTransform ) = 0;
-
-		// ---------------------------------------------
-		// Overlay input methods
-		// ---------------------------------------------
-
-		/** Returns true and fills the event with the next event on the overlay's event queue, if there is one. 
-		* If there are no events this method returns false. uncbVREvent should be the size in bytes of the VREvent_t struct */
-		virtual bool PollNextOverlayEvent( VROverlayHandle_t ulOverlayHandle, VREvent_t *pEvent, uint32_t uncbVREvent ) = 0;
-
-		/** Returns the current input settings for the specified overlay. */
-		virtual EVROverlayError GetOverlayInputMethod( VROverlayHandle_t ulOverlayHandle, VROverlayInputMethod *peInputMethod ) = 0;
-
-		/** Sets the input settings for the specified overlay. */
-		virtual EVROverlayError SetOverlayInputMethod( VROverlayHandle_t ulOverlayHandle, VROverlayInputMethod eInputMethod ) = 0;
-
-		/** Gets the mouse scaling factor that is used for mouse events. The actual texture may be a different size, but this is
-		* typically the size of the underlying UI in pixels. */
-		virtual EVROverlayError GetOverlayMouseScale( VROverlayHandle_t ulOverlayHandle, HmdVector2_t *pvecMouseScale ) = 0;
-
-		/** Sets the mouse scaling factor that is used for mouse events. The actual texture may be a different size, but this is
-		* typically the size of the underlying UI in pixels (not in world space). */
-		virtual EVROverlayError SetOverlayMouseScale( VROverlayHandle_t ulOverlayHandle, const HmdVector2_t *pvecMouseScale ) = 0;
-
-		/** Computes the overlay-space pixel coordinates of where the ray intersects the overlay with the
-		* specified settings. Returns false if there is no intersection. */
-		virtual bool ComputeOverlayIntersection( VROverlayHandle_t ulOverlayHandle, const VROverlayIntersectionParams_t *pParams, VROverlayIntersectionResults_t *pResults ) = 0;
-
-		/** Processes mouse input from the specified controller as though it were a mouse pointed at a compositor overlay with the
-		* specified settings. The controller is treated like a laser pointer on the -z axis. The point where the laser pointer would
-		* intersect with the overlay is the mouse position, the trigger is left mouse, and the track pad is right mouse. 
-		*
-		* Return true if the controller is pointed at the overlay and an event was generated. */
-		virtual bool HandleControllerOverlayInteractionAsMouse( VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unControllerDeviceIndex ) = 0;
-
-		/** Returns true if the specified overlay is the hover target. An overlay is the hover target when it is the last overlay "moused over" 
-		* by the virtual mouse pointer */
-		virtual bool IsHoverTargetOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Returns the current Gamepad focus overlay */
-		virtual vr::VROverlayHandle_t GetGamepadFocusOverlay() = 0;
-
-		/** Sets the current Gamepad focus overlay */
-		virtual EVROverlayError SetGamepadFocusOverlay( VROverlayHandle_t ulNewFocusOverlay ) = 0;
-
-		/** Sets an overlay's neighbor. This will also set the neighbor of the "to" overlay
-		* to point back to the "from" overlay. If an overlay's neighbor is set to invalid both
-		* ends will be cleared */
-		virtual EVROverlayError SetOverlayNeighbor( EOverlayDirection eDirection, VROverlayHandle_t ulFrom, VROverlayHandle_t ulTo ) = 0;
-
-		/** Changes the Gamepad focus from one overlay to one of its neighbors. Returns VROverlayError_NoNeighbor if there is no
-		* neighbor in that direction */
-		virtual EVROverlayError MoveGamepadFocusToNeighbor( EOverlayDirection eDirection, VROverlayHandle_t ulFrom ) = 0;
-
-		// ---------------------------------------------
-		// Overlay texture methods
-		// ---------------------------------------------
-
-		/** Texture to draw for the overlay. This function can only be called by the overlay's creator or renderer process (see SetOverlayRenderingPid) .
-		*
-		* OpenGL dirty state:
-		*	glBindTexture
-		*/
-		virtual EVROverlayError SetOverlayTexture( VROverlayHandle_t ulOverlayHandle, const Texture_t *pTexture ) = 0;
-
-		/** Use this to tell the overlay system to release the texture set for this overlay. */
-		virtual EVROverlayError ClearOverlayTexture( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Separate interface for providing the data as a stream of bytes, but there is an upper bound on data 
-		* that can be sent. This function can only be called by the overlay's renderer process. */
-		virtual EVROverlayError SetOverlayRaw( VROverlayHandle_t ulOverlayHandle, void *pvBuffer, uint32_t unWidth, uint32_t unHeight, uint32_t unDepth ) = 0;
-
-		/** Separate interface for providing the image through a filename: can be png or jpg, and should not be bigger than 1920x1080.
-		* This function can only be called by the overlay's renderer process */
-		virtual EVROverlayError SetOverlayFromFile( VROverlayHandle_t ulOverlayHandle, const char *pchFilePath ) = 0;
-
-		/** Get the native texture handle/device for an overlay you have created.
-		* On windows this handle will be a ID3D11ShaderResourceView with a ID3D11Texture2D bound.
-		*
-		* The texture will always be sized to match the backing texture you supplied in SetOverlayTexture above.
-		*
-		* You MUST call ReleaseNativeOverlayHandle() with pNativeTextureHandle once you are done with this texture.
-		*
-		* pNativeTextureHandle is an OUTPUT, it will be a pointer to a ID3D11ShaderResourceView *.
-		* pNativeTextureRef is an INPUT and should be a ID3D11Resource *. The device used by pNativeTextureRef will be used to bind pNativeTextureHandle.
-		*/
-		virtual EVROverlayError GetOverlayTexture( VROverlayHandle_t ulOverlayHandle, void **pNativeTextureHandle, void *pNativeTextureRef, uint32_t *pWidth, uint32_t *pHeight, uint32_t *pNativeFormat, EGraphicsAPIConvention *pAPI, EColorSpace *pColorSpace ) = 0;
-
-		/** Release the pNativeTextureHandle provided from the GetOverlayTexture call, this allows the system to free the underlying GPU resources for this object,
-		* so only do it once you stop rendering this texture.
-		*/
-		virtual EVROverlayError ReleaseNativeOverlayHandle( VROverlayHandle_t ulOverlayHandle, void *pNativeTextureHandle ) = 0;
-
-		/** Get the size of the overlay texture */
-		virtual EVROverlayError GetOverlayTextureSize( VROverlayHandle_t ulOverlayHandle, uint32_t *pWidth, uint32_t *pHeight ) = 0;
-
-		// ----------------------------------------------
-		// Dashboard Overlay Methods
-		// ----------------------------------------------
-
-		/** Creates a dashboard overlay and returns its handle */
-		virtual EVROverlayError CreateDashboardOverlay( const char *pchOverlayKey, const char *pchOverlayFriendlyName, VROverlayHandle_t * pMainHandle, VROverlayHandle_t *pThumbnailHandle ) = 0;
-
-		/** Returns true if the dashboard is visible */
-		virtual bool IsDashboardVisible() = 0;
-
-		/** returns true if the dashboard is visible and the specified overlay is the active system Overlay */
-		virtual bool IsActiveDashboardOverlay( VROverlayHandle_t ulOverlayHandle ) = 0;
-
-		/** Sets the dashboard overlay to only appear when the specified process ID has scene focus */
-		virtual EVROverlayError SetDashboardOverlaySceneProcess( VROverlayHandle_t ulOverlayHandle, uint32_t unProcessId ) = 0;
-
-		/** Gets the process ID that this dashboard overlay requires to have scene focus */
-		virtual EVROverlayError GetDashboardOverlaySceneProcess( VROverlayHandle_t ulOverlayHandle, uint32_t *punProcessId ) = 0;
-
-		/** Shows the dashboard. */
-		virtual void ShowDashboard( const char *pchOverlayToShow ) = 0;
-
-		/** Returns the tracked device that has the laser pointer in the dashboard */
-		virtual vr::TrackedDeviceIndex_t GetPrimaryDashboardDevice() = 0;
-
-		// ---------------------------------------------
-		// Keyboard methods
-		// ---------------------------------------------
-		
-		/** Show the virtual keyboard to accept input **/
-		virtual EVROverlayError ShowKeyboard( EGamepadTextInputMode eInputMode, EGamepadTextInputLineMode eLineInputMode, const char *pchDescription, uint32_t unCharMax, const char *pchExistingText, bool bUseMinimalMode, uint64_t uUserValue ) = 0;
-
-		virtual EVROverlayError ShowKeyboardForOverlay( VROverlayHandle_t ulOverlayHandle, EGamepadTextInputMode eInputMode, EGamepadTextInputLineMode eLineInputMode, const char *pchDescription, uint32_t unCharMax, const char *pchExistingText, bool bUseMinimalMode, uint64_t uUserValue ) = 0;
-
-		/** Get the text that was entered into the text input **/
-		virtual uint32_t GetKeyboardText( VR_OUT_STRING() char *pchText, uint32_t cchText ) = 0;
-
-		/** Hide the virtual keyboard **/
-		virtual void HideKeyboard() = 0;
-
-		/** Set the position of the keyboard in world space **/
-		virtual void SetKeyboardTransformAbsolute( ETrackingUniverseOrigin eTrackingOrigin, const HmdMatrix34_t *pmatTrackingOriginToKeyboardTransform ) = 0;
-
-		/** Set the position of the keyboard in overlay space by telling it to avoid a rectangle in the overlay. Rectangle coords have (0,0) in the bottom left **/
-		virtual void SetKeyboardPositionForOverlay( VROverlayHandle_t ulOverlayHandle, HmdRect2_t avoidRect ) = 0;
-
-	};
-
-	static const char * const IVROverlay_Version = "IVROverlay_013";
-
-} // namespace vr
-
-// ivrrendermodels.h
-namespace vr
-{
-
-static const char * const k_pch_Controller_Component_GDC2015 = "gdc2015";   // Canonical coordinate system of the gdc 2015 wired controller, provided for backwards compatibility
-static const char * const k_pch_Controller_Component_Base = "base";         // For controllers with an unambiguous 'base'.
-static const char * const k_pch_Controller_Component_Tip = "tip";           // For controllers with an unambiguous 'tip' (used for 'laser-pointing')
-static const char * const k_pch_Controller_Component_HandGrip = "handgrip"; // Neutral, ambidextrous hand-pose when holding controller. On plane between neutrally posed index finger and thumb
-static const char * const k_pch_Controller_Component_Status = "status";		// 1:1 aspect ratio status area, with canonical [0,1] uv mapping
-
-#if defined(__linux__) || defined(__APPLE__) 
-// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
-// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
-// The 64-bit version of gcc has the alignment requirement for these types set to
-// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
-// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
-#pragma pack( push, 4 )
-#else
-#pragma pack( push, 8 )
-#endif
-
-/** Errors that can occur with the VR compositor */
-enum EVRRenderModelError
-{
-	VRRenderModelError_None = 0,
-	VRRenderModelError_Loading = 100,
-	VRRenderModelError_NotSupported = 200,
-	VRRenderModelError_InvalidArg = 300,
-	VRRenderModelError_InvalidModel = 301,
-	VRRenderModelError_NoShapes = 302,
-	VRRenderModelError_MultipleShapes = 303,
-	VRRenderModelError_TooManyVertices = 304,
-	VRRenderModelError_MultipleTextures = 305,
-	VRRenderModelError_BufferTooSmall = 306,
-	VRRenderModelError_NotEnoughNormals = 307,
-	VRRenderModelError_NotEnoughTexCoords = 308,
-
-	VRRenderModelError_InvalidTexture = 400,
-};
-
-typedef uint32_t VRComponentProperties;
-
-enum EVRComponentProperty
-{
-	VRComponentProperty_IsStatic = (1 << 0),
-	VRComponentProperty_IsVisible = (1 << 1),
-	VRComponentProperty_IsTouched = (1 << 2),
-	VRComponentProperty_IsPressed = (1 << 3),
-	VRComponentProperty_IsScrolled = (1 << 4),
-};
-
-/** Describes state information about a render-model component, including transforms and other dynamic properties */
-struct RenderModel_ComponentState_t
-{
-	HmdMatrix34_t mTrackingToComponentRenderModel;  // Transform required when drawing the component render model
-	HmdMatrix34_t mTrackingToComponentLocal;        // Transform available for attaching to a local component coordinate system (-Z out from surface )
-	VRComponentProperties uProperties;
-};
-
-/** A single vertex in a render model */
-struct RenderModel_Vertex_t
-{
-	HmdVector3_t vPosition;		// position in meters in device space
-	HmdVector3_t vNormal;
-	float rfTextureCoord[2];
-};
-
-/** A texture map for use on a render model */
-struct RenderModel_TextureMap_t
-{
-	uint16_t unWidth, unHeight; // width and height of the texture map in pixels
-	const uint8_t *rubTextureMapData;	// Map texture data. All textures are RGBA with 8 bits per channel per pixel. Data size is width * height * 4ub
-};
-
-/**  Session unique texture identifier. Rendermodels which share the same texture will have the same id.
-IDs <0 denote the texture is not present */
-
-typedef int32_t TextureID_t;
-
-const TextureID_t INVALID_TEXTURE_ID = -1;
-
-struct RenderModel_t
-{
-	const RenderModel_Vertex_t *rVertexData;	// Vertex data for the mesh
-	uint32_t unVertexCount;						// Number of vertices in the vertex data
-	const uint16_t *rIndexData;					// Indices into the vertex data for each triangle
-	uint32_t unTriangleCount;					// Number of triangles in the mesh. Index count is 3 * TriangleCount
-	TextureID_t diffuseTextureId;				// Session unique texture identifier. Rendermodels which share the same texture will have the same id. <0 == texture not present
-};
-
-struct RenderModel_ControllerMode_State_t
-{
-	bool bScrollWheelVisible; // is this controller currently set to be in a scroll wheel mode
-};
-
-#pragma pack( pop )
-
-class IVRRenderModels
-{
-public:
-
-	/** Loads and returns a render model for use in the application. pchRenderModelName should be a render model name
-	* from the Prop_RenderModelName_String property or an absolute path name to a render model on disk. 
-	*
-	* The resulting render model is valid until VR_Shutdown() is called or until FreeRenderModel() is called. When the 
-	* application is finished with the render model it should call FreeRenderModel() to free the memory associated
-	* with the model.
-	*
-	* The method returns VRRenderModelError_Loading while the render model is still being loaded.
-	* The method returns VRRenderModelError_None once loaded successfully, otherwise will return an error. */
-	virtual EVRRenderModelError LoadRenderModel_Async( const char *pchRenderModelName, RenderModel_t **ppRenderModel ) = 0;
-
-	/** Frees a previously returned render model
-	*   It is safe to call this on a null ptr. */
-	virtual void FreeRenderModel( RenderModel_t *pRenderModel ) = 0;
-
-	/** Loads and returns a texture for use in the application. */
-	virtual EVRRenderModelError LoadTexture_Async( TextureID_t textureId, RenderModel_TextureMap_t **ppTexture ) = 0;
-
-	/** Frees a previously returned texture
-	*   It is safe to call this on a null ptr. */
-	virtual void FreeTexture( RenderModel_TextureMap_t *pTexture ) = 0;
-
-	/** Creates a D3D11 texture and loads data into it. */
-	virtual EVRRenderModelError LoadTextureD3D11_Async( TextureID_t textureId, void *pD3D11Device, void **ppD3D11Texture2D ) = 0;
-
-	/** Helper function to copy the bits into an existing texture. */
-	virtual EVRRenderModelError LoadIntoTextureD3D11_Async( TextureID_t textureId, void *pDstTexture ) = 0;
-
-	/** Use this to free textures created with LoadTextureD3D11_Async instead of calling Release on them. */
-	virtual void FreeTextureD3D11( void *pD3D11Texture2D ) = 0;
-
-	/** Use this to get the names of available render models.  Index does not correlate to a tracked device index, but
-	* is only used for iterating over all available render models.  If the index is out of range, this function will return 0.
-	* Otherwise, it will return the size of the buffer required for the name. */
-	virtual uint32_t GetRenderModelName( uint32_t unRenderModelIndex, VR_OUT_STRING() char *pchRenderModelName, uint32_t unRenderModelNameLen ) = 0;
-
-	/** Returns the number of available render models. */
-	virtual uint32_t GetRenderModelCount() = 0;
-
-
-	/** Returns the number of components of the specified render model.
-	*  Components are useful when client application wish to draw, label, or otherwise interact with components of tracked objects.
-	*  Examples controller components:
-	*   renderable things such as triggers, buttons
-	*   non-renderable things which include coordinate systems such as 'tip', 'base', a neutral controller agnostic hand-pose
-	*   If all controller components are enumerated and rendered, it will be equivalent to drawing the traditional render model
-	*   Returns 0 if components not supported, >0 otherwise */
-	virtual uint32_t GetComponentCount( const char *pchRenderModelName ) = 0;
-
-	/** Use this to get the names of available components.  Index does not correlate to a tracked device index, but
-	* is only used for iterating over all available components.  If the index is out of range, this function will return 0.
-	* Otherwise, it will return the size of the buffer required for the name. */
-	virtual uint32_t GetComponentName( const char *pchRenderModelName, uint32_t unComponentIndex, VR_OUT_STRING( ) char *pchComponentName, uint32_t unComponentNameLen ) = 0;
-
-	/** Get the button mask for all buttons associated with this component
-	*   If no buttons (or axes) are associated with this component, return 0
-	*   Note: multiple components may be associated with the same button. Ex: two grip buttons on a single controller.
-	*   Note: A single component may be associated with multiple buttons. Ex: A trackpad which also provides "D-pad" functionality */
-	virtual uint64_t GetComponentButtonMask( const char *pchRenderModelName, const char *pchComponentName ) = 0;
-
-	/** Use this to get the render model name for the specified rendermode/component combination, to be passed to LoadRenderModel.
-	* If the component name is out of range, this function will return 0.
-	* Otherwise, it will return the size of the buffer required for the name. */
-	virtual uint32_t GetComponentRenderModelName( const char *pchRenderModelName, const char *pchComponentName, VR_OUT_STRING( ) char *pchComponentRenderModelName, uint32_t unComponentRenderModelNameLen ) = 0;
-
-	/** Use this to query information about the component, as a function of the controller state.
-	*
-	* For dynamic controller components (ex: trigger) values will reflect component motions
-	* For static components this will return a consistent value independent of the VRControllerState_t
-	*
-	* If the pchRenderModelName or pchComponentName is invalid, this will return false (and transforms will be set to identity).
-	* Otherwise, return true
-	* Note: For dynamic objects, visibility may be dynamic. (I.e., true/false will be returned based on controller state and controller mode state ) */
-	virtual bool GetComponentState( const char *pchRenderModelName, const char *pchComponentName, const vr::VRControllerState_t *pControllerState, const RenderModel_ControllerMode_State_t *pState, RenderModel_ComponentState_t *pComponentState ) = 0;
-
-	/** Returns true if the render model has a component with the specified name */
-	virtual bool RenderModelHasComponent( const char *pchRenderModelName, const char *pchComponentName ) = 0;
-
-	/** Returns the URL of the thumbnail image for this rendermodel */
-	virtual uint32_t GetRenderModelThumbnailURL( const char *pchRenderModelName, VR_OUT_STRING() char *pchThumbnailURL, uint32_t unThumbnailURLLen, vr::EVRRenderModelError *peError ) = 0;
-
-	/** Provides a render model path that will load the unskinned model if the model name provided has been replace by the user. If the model
-	* hasn't been replaced the path value will still be a valid path to load the model. Pass this to LoadRenderModel_Async, etc. to load the
-	* model. */
-	virtual uint32_t GetRenderModelOriginalPath( const char *pchRenderModelName, VR_OUT_STRING() char *pchOriginalPath, uint32_t unOriginalPathLen, vr::EVRRenderModelError *peError ) = 0;
-
-	/** Returns a string for a render model error */
-	virtual const char *GetRenderModelErrorNameFromEnum( vr::EVRRenderModelError error ) = 0;
-};
-
-static const char * const IVRRenderModels_Version = "IVRRenderModels_005";
-
-}
-
-
-// ivrextendeddisplay.h
-namespace vr
-{
-
-	/** NOTE: Use of this interface is not recommended in production applications. It will not work for displays which use
-	* direct-to-display mode. Creating our own window is also incompatible with the VR compositor and is not available when the compositor is running. */
-	class IVRExtendedDisplay
-	{
-	public:
-
-		/** Size and position that the window needs to be on the VR display. */
-		virtual void GetWindowBounds( int32_t *pnX, int32_t *pnY, uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
-
-		/** Gets the viewport in the frame buffer to draw the output of the distortion into */
-		virtual void GetEyeOutputViewport( EVREye eEye, uint32_t *pnX, uint32_t *pnY, uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
-
-		/** [D3D10/11 Only]
-		* Returns the adapter index and output index that the user should pass into EnumAdapters and EnumOutputs
-		* to create the device and swap chain in DX10 and DX11. If an error occurs both indices will be set to -1.
-		*/
-		virtual void GetDXGIOutputInfo( int32_t *pnAdapterIndex, int32_t *pnAdapterOutputIndex ) = 0;
-
-	};
-
-	static const char * const IVRExtendedDisplay_Version = "IVRExtendedDisplay_001";
-
-}
-
-
-// ivrtrackedcamera.h
-namespace vr
-{
-
-class IVRTrackedCamera
-{
-public:
-	/** Returns a string for an error */
-	virtual const char *GetCameraErrorNameFromEnum( vr::EVRTrackedCameraError eCameraError ) = 0;
-
-	/** For convenience, same as tracked property request Prop_HasCamera_Bool */
-	virtual vr::EVRTrackedCameraError HasCamera( vr::TrackedDeviceIndex_t nDeviceIndex, bool *pHasCamera ) = 0;
-
-	/** Gets size of the image frame. */
-	virtual vr::EVRTrackedCameraError GetCameraFrameSize( vr::TrackedDeviceIndex_t nDeviceIndex, vr::EVRTrackedCameraFrameType eFrameType, uint32_t *pnWidth, uint32_t *pnHeight, uint32_t *pnFrameBufferSize ) = 0;
-
-	virtual vr::EVRTrackedCameraError GetCameraIntrinisics( vr::TrackedDeviceIndex_t nDeviceIndex, vr::EVRTrackedCameraFrameType eFrameType, vr::HmdVector2_t *pFocalLength, vr::HmdVector2_t *pCenter ) = 0;
-
-	virtual vr::EVRTrackedCameraError GetCameraProjection( vr::TrackedDeviceIndex_t nDeviceIndex, vr::EVRTrackedCameraFrameType eFrameType, float flZNear, float flZFar, vr::HmdMatrix44_t *pProjection ) = 0;
-
-	/** Acquiring streaming service permits video streaming for the caller. Releasing hints the system that video services do not need to be maintained for this client.
-	* If the camera has not already been activated, a one time spin up may incur some auto exposure as well as initial streaming frame delays.
-	* The camera should be considered a global resource accessible for shared consumption but not exclusive to any caller.
-	* The camera may go inactive due to lack of active consumers or headset idleness. */
-	virtual vr::EVRTrackedCameraError AcquireVideoStreamingService( vr::TrackedDeviceIndex_t nDeviceIndex, vr::TrackedCameraHandle_t *pHandle ) = 0;
-	virtual vr::EVRTrackedCameraError ReleaseVideoStreamingService( vr::TrackedCameraHandle_t hTrackedCamera ) = 0;
-
-	/** Copies the image frame into a caller's provided buffer. The image data is currently provided as RGBA data, 4 bytes per pixel.
-	* A caller can provide null for the framebuffer or frameheader if not desired. Requesting the frame header first, followed by the frame buffer allows
-	* the caller to determine if the frame as advanced per the frame header sequence. 
-	* If there is no frame available yet, due to initial camera spinup or re-activation, the error will be VRTrackedCameraError_NoFrameAvailable.
-	* Ideally a caller should be polling at ~16ms intervals */
-	virtual vr::EVRTrackedCameraError GetVideoStreamFrameBuffer( vr::TrackedCameraHandle_t hTrackedCamera, vr::EVRTrackedCameraFrameType eFrameType, void *pFrameBuffer, uint32_t nFrameBufferSize, vr::CameraVideoStreamFrameHeader_t *pFrameHeader, uint32_t nFrameHeaderSize ) = 0;
-
-	/** Gets size of the image frame. */
-	virtual vr::EVRTrackedCameraError GetVideoStreamTextureSize( vr::TrackedDeviceIndex_t nDeviceIndex, vr::EVRTrackedCameraFrameType eFrameType, vr::VRTextureBounds_t *pTextureBounds, uint32_t *pnWidth, uint32_t *pnHeight ) = 0; 
-
-	/** Access a shared D3D11 texture for the specified tracked camera stream */
-	virtual vr::EVRTrackedCameraError GetVideoStreamTextureD3D11( vr::TrackedCameraHandle_t hTrackedCamera, vr::EVRTrackedCameraFrameType eFrameType, void *pD3D11DeviceOrResource, void **ppD3D11ShaderResourceView, vr::CameraVideoStreamFrameHeader_t *pFrameHeader, uint32_t nFrameHeaderSize ) = 0;
-
-	/** Access a shared GL texture for the specified tracked camera stream */
-	virtual vr::EVRTrackedCameraError GetVideoStreamTextureGL( vr::TrackedCameraHandle_t hTrackedCamera, vr::EVRTrackedCameraFrameType eFrameType, vr::glUInt_t *pglTextureId, vr::CameraVideoStreamFrameHeader_t *pFrameHeader, uint32_t nFrameHeaderSize ) = 0;
-	virtual vr::EVRTrackedCameraError ReleaseVideoStreamTextureGL( vr::TrackedCameraHandle_t hTrackedCamera, vr::glUInt_t glTextureId ) = 0;
-};
-
-static const char * const IVRTrackedCamera_Version = "IVRTrackedCamera_003";
-
-} // namespace vr
-
-
-// ivrscreenshots.h
-namespace vr
-{
-
-/** Errors that can occur with the VR compositor */
-enum EVRScreenshotError
-{
-	VRScreenshotError_None							= 0,
-	VRScreenshotError_RequestFailed					= 1,
-	VRScreenshotError_IncompatibleVersion			= 100,
-	VRScreenshotError_NotFound						= 101,
-	VRScreenshotError_BufferTooSmall				= 102,
-	VRScreenshotError_ScreenshotAlreadyInProgress	= 108,
-};
-
-/** Allows the application to generate screenshots */
-class IVRScreenshots
-{
-public:
-	/** Request a screenshot of the requested type.
-	 *  A request of the VRScreenshotType_Stereo type will always
-	 *  work. Other types will depend on the underlying application
-	 *  support.
-	 *  The first file name is for the preview image and should be a
-	 *  regular screenshot (ideally from the left eye). The second
-	 *  is the VR screenshot in the correct format. They should be
-	 *  in the same aspect ratio.  Formats per type:
-	 *  VRScreenshotType_Mono: the VR filename is ignored (can be
-	 *  nullptr), this is a normal flat single shot.
-	 *  VRScreenshotType_Stereo:  The VR image should be a
-	 *  side-by-side with the left eye image on the left.
-	 *  VRScreenshotType_Cubemap: The VR image should be six square
-	 *  images composited horizontally.
-	 *  VRScreenshotType_StereoPanorama: above/below with left eye
-	 *  panorama being the above image.  Image is typically square
-	 *  with the panorama being 2x horizontal.
-	 *  
-	 *  Note that the VR dashboard will call this function when
-	 *  the user presses the screenshot binding (currently System
-	 *  Button + Trigger).  If Steam is running, the destination
-	 *  file names will be in %TEMP% and will be copied into
-	 *  Steam's screenshot library for the running application
-	 *  once SubmitScreenshot() is called.
-	 *  If Steam is not running, the paths will be in the user's
-	 *  documents folder under Documents\SteamVR\Screenshots.
-	 *  Other VR applications can call this to initate a
-	 *  screenshot outside of user control.
-	 *  The destination file names do not need an extension,
-	 *  will be replaced with the correct one for the format
-	 *  which is currently .png. */
-	virtual vr::EVRScreenshotError RequestScreenshot( vr::ScreenshotHandle_t *pOutScreenshotHandle, vr::EVRScreenshotType type, const char *pchPreviewFilename, const char *pchVRFilename ) = 0;
-
-	/** Called by the running VR application to indicate that it
-	 *  wishes to be in charge of screenshots.  If the
-	 *  application does not call this, the Compositor will only
-	 *  support VRScreenshotType_Stereo screenshots that will be
-	 *  captured without notification to the running app.
-	 *  Once hooked your application will receive a
-	 *  VREvent_RequestScreenshot event when the user presses the
-	 *  buttons to take a screenshot. */
-	virtual vr::EVRScreenshotError HookScreenshot( VR_ARRAY_COUNT( numTypes ) const vr::EVRScreenshotType *pSupportedTypes, int numTypes ) = 0;
-
-	/** When your application receives a
-	 *  VREvent_RequestScreenshot event, call these functions to get
-	 *  the details of the screenshot request. */
-	virtual vr::EVRScreenshotType GetScreenshotPropertyType( vr::ScreenshotHandle_t screenshotHandle, vr::EVRScreenshotError *pError ) = 0;
-
-	/** Get the filename for the preview or vr image (see
-	 *  vr::EScreenshotPropertyFilenames).  The return value is
-	 *  the size of the string.   */
- 	virtual uint32_t GetScreenshotPropertyFilename( vr::ScreenshotHandle_t screenshotHandle, vr::EVRScreenshotPropertyFilenames filenameType, VR_OUT_STRING() char *pchFilename, uint32_t cchFilename, vr::EVRScreenshotError *pError ) = 0;
-
-	/** Call this if the application is taking the screen shot
-	 *  will take more than a few ms processing. This will result
-	 *  in an overlay being presented that shows a completion
-	 *  bar. */
-	virtual vr::EVRScreenshotError UpdateScreenshotProgress( vr::ScreenshotHandle_t screenshotHandle, float flProgress ) = 0;
-
-	/** Tells the compositor to take an internal screenshot of
-	 *  type VRScreenshotType_Stereo. It will take the current
-	 *  submitted scene textures of the running application and
-	 *  write them into the preview image and a side-by-side file
-	 *  for the VR image.
-	 *  This is similiar to request screenshot, but doesn't ever
-	 *  talk to the application, just takes the shot and submits. */
-	virtual vr::EVRScreenshotError TakeStereoScreenshot( vr::ScreenshotHandle_t *pOutScreenshotHandle, const char *pchPreviewFilename, const char *pchVRFilename ) = 0;
-
-	/** Submit the completed screenshot.  If Steam is running
-	 *  this will call into the Steam client and upload the
-	 *  screenshot to the screenshots section of the library for
-	 *  the running application.  If Steam is not running, this
-	 *  function will display a notification to the user that the
-	 *  screenshot was taken. The paths should be full paths with
-	 *  extensions.
-	 *  File paths should be absolute including
-	 *  exntensions.
-	 *  screenshotHandle can be k_unScreenshotHandleInvalid if this
-	 *  was a new shot taking by the app to be saved and not
-	 *  initiated by a user (achievement earned or something) */
-	virtual vr::EVRScreenshotError SubmitScreenshot( vr::ScreenshotHandle_t screenshotHandle, vr::EVRScreenshotType type, const char *pchSourcePreviewFilename, const char *pchSourceVRFilename ) = 0;
-};
-
-static const char * const IVRScreenshots_Version = "IVRScreenshots_001";
-
-} // namespace vr
-
-
-
-// ivrresources.h
-namespace vr
-{
-
-class IVRResources
-{
-public:
-
-	// ------------------------------------
-	// Shared Resource Methods
-	// ------------------------------------
-
-	/** Loads the specified resource into the provided buffer if large enough.
-	* Returns the size in bytes of the buffer required to hold the specified resource. */
-	virtual uint32_t LoadSharedResource( const char *pchResourceName, char *pchBuffer, uint32_t unBufferLen ) = 0;
-
-	/** Provides the full path to the specified resource. Resource names can include named directories for
-	* drivers and other things, and this resolves all of those and returns the actual physical path. 
-	* pchResourceTypeDirectory is the subdirectory of resources to look in. */
-	virtual uint32_t GetResourceFullPath( const char *pchResourceName, const char *pchResourceTypeDirectory, char *pchPathBuffer, uint32_t unBufferLen ) = 0;
-};
-
-static const char * const IVRResources_Version = "IVRResources_001";
-
-
-}// End
-
-#endif // _OPENVR_API
-
-
-namespace vr
-{
-	/** Finds the active installation of the VR API and initializes it. The provided path must be absolute
-	* or relative to the current working directory. These are the local install versions of the equivalent
-	* functions in steamvr.h and will work without a local Steam install.
-	*
-	* This path is to the "root" of the VR API install. That's the directory with
-	* the "drivers" directory and a platform (i.e. "win32") directory in it, not the directory with the DLL itself.
-	*/
-	inline IVRSystem *VR_Init( EVRInitError *peError, EVRApplicationType eApplicationType );
-
-	/** unloads vrclient.dll. Any interface pointers from the interface are
-	* invalid after this point */
-	inline void VR_Shutdown();
-
-	/** Returns true if there is an HMD attached. This check is as lightweight as possible and
-	* can be called outside of VR_Init/VR_Shutdown. It should be used when an application wants
-	* to know if initializing VR is a possibility but isn't ready to take that step yet.
-	*/
-	VR_INTERFACE bool VR_CALLTYPE VR_IsHmdPresent();
-
-	/** Returns true if the OpenVR runtime is installed. */
-	VR_INTERFACE bool VR_CALLTYPE VR_IsRuntimeInstalled();
-
-	/** Returns where the OpenVR runtime is installed. */
-	VR_INTERFACE const char *VR_CALLTYPE VR_RuntimePath();
-
-	/** Returns the name of the enum value for an EVRInitError. This function may be called outside of VR_Init()/VR_Shutdown(). */
-	VR_INTERFACE const char *VR_CALLTYPE VR_GetVRInitErrorAsSymbol( EVRInitError error );
-
-	/** Returns an english string for an EVRInitError. Applications should call VR_GetVRInitErrorAsSymbol instead and
-	* use that as a key to look up their own localized error message. This function may be called outside of VR_Init()/VR_Shutdown(). */
-	VR_INTERFACE const char *VR_CALLTYPE VR_GetVRInitErrorAsEnglishDescription( EVRInitError error );
-
-	/** Returns the interface of the specified version. This method must be called after VR_Init. The
-	* pointer returned is valid until VR_Shutdown is called.
-	*/
-	VR_INTERFACE void *VR_CALLTYPE VR_GetGenericInterface( const char *pchInterfaceVersion, EVRInitError *peError );
-
-	/** Returns whether the interface of the specified version exists.
-	*/
-	VR_INTERFACE bool VR_CALLTYPE VR_IsInterfaceVersionValid( const char *pchInterfaceVersion );
-
-	/** Returns a token that represents whether the VR interface handles need to be reloaded */
-	VR_INTERFACE uint32_t VR_CALLTYPE VR_GetInitToken();
-
-	// These typedefs allow old enum names from SDK 0.9.11 to be used in applications.
-	// They will go away in the future.
-	typedef EVRInitError HmdError;
-	typedef EVREye Hmd_Eye;
-	typedef EGraphicsAPIConvention GraphicsAPIConvention;
-	typedef EColorSpace ColorSpace;
-	typedef ETrackingResult HmdTrackingResult;
-	typedef ETrackedDeviceClass TrackedDeviceClass;
-	typedef ETrackingUniverseOrigin TrackingUniverseOrigin;
-	typedef ETrackedDeviceProperty TrackedDeviceProperty;
-	typedef ETrackedPropertyError TrackedPropertyError;
-	typedef EVRSubmitFlags VRSubmitFlags_t;
-	typedef EVRState VRState_t;
-	typedef ECollisionBoundsStyle CollisionBoundsStyle_t;
-	typedef EVROverlayError VROverlayError;
-	typedef EVRFirmwareError VRFirmwareError;
-	typedef EVRCompositorError VRCompositorError;
-	typedef EVRScreenshotError VRScreenshotsError;
-
-	inline uint32_t &VRToken()
-	{
-		static uint32_t token;
-		return token;
-	}
-
-	class COpenVRContext
-	{
-	public:
-		COpenVRContext() { Clear(); }
-		void Clear();
-
-		inline void CheckClear()
-		{
-			if ( VRToken() != VR_GetInitToken() )
-			{
-				Clear();
-				VRToken() = VR_GetInitToken();
-			}
-		}
-
-		IVRSystem *VRSystem()
-		{
-			CheckClear();
-			if ( m_pVRSystem == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRSystem = ( IVRSystem * )VR_GetGenericInterface( IVRSystem_Version, &eError );
-			}
-			return m_pVRSystem;
-		}
-		IVRChaperone *VRChaperone()
-		{
-			CheckClear();
-			if ( m_pVRChaperone == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRChaperone = ( IVRChaperone * )VR_GetGenericInterface( IVRChaperone_Version, &eError );
-			}
-			return m_pVRChaperone;
-		}
-
-		IVRChaperoneSetup *VRChaperoneSetup()
-		{
-			CheckClear();
-			if ( m_pVRChaperoneSetup == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRChaperoneSetup = ( IVRChaperoneSetup * )VR_GetGenericInterface( IVRChaperoneSetup_Version, &eError );
-			}
-			return m_pVRChaperoneSetup;
-		}
-
-		IVRCompositor *VRCompositor()
-		{
-			CheckClear();
-			if ( m_pVRCompositor == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRCompositor = ( IVRCompositor * )VR_GetGenericInterface( IVRCompositor_Version, &eError );
-			}
-			return m_pVRCompositor;
-		}
-
-		IVROverlay *VROverlay()
-		{
-			CheckClear();
-			if ( m_pVROverlay == nullptr )
-			{
-				EVRInitError eError;
-				m_pVROverlay = ( IVROverlay * )VR_GetGenericInterface( IVROverlay_Version, &eError );
-			}
-			return m_pVROverlay;
-		}
-
-		IVRResources *VRResources()
-		{
-			CheckClear();
-			if ( m_pVRResources == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRResources = (IVRResources *)VR_GetGenericInterface( IVRResources_Version, &eError );
-			}
-			return m_pVRResources;
-		}
-
-		IVRScreenshots *VRScreenshots()
-		{
-			CheckClear();
-			if ( m_pVRScreenshots == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRScreenshots = ( IVRScreenshots * )VR_GetGenericInterface( IVRScreenshots_Version, &eError );
-			}
-			return m_pVRScreenshots;
-		}
-
-		IVRRenderModels *VRRenderModels()
-		{
-			CheckClear();
-			if ( m_pVRRenderModels == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRRenderModels = ( IVRRenderModels * )VR_GetGenericInterface( IVRRenderModels_Version, &eError );
-			}
-			return m_pVRRenderModels;
-		}
-
-		IVRExtendedDisplay *VRExtendedDisplay()
-		{
-			CheckClear();
-			if ( m_pVRExtendedDisplay == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRExtendedDisplay = ( IVRExtendedDisplay * )VR_GetGenericInterface( IVRExtendedDisplay_Version, &eError );
-			}
-			return m_pVRExtendedDisplay;
-		}
-
-		IVRSettings *VRSettings()
-		{
-			CheckClear();
-			if ( m_pVRSettings == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRSettings = ( IVRSettings * )VR_GetGenericInterface( IVRSettings_Version, &eError );
-			}
-			return m_pVRSettings;
-		}
-
-		IVRApplications *VRApplications()
-		{
-			CheckClear();
-			if ( m_pVRApplications == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRApplications = ( IVRApplications * )VR_GetGenericInterface( IVRApplications_Version, &eError );
-			}
-			return m_pVRApplications;
-		}
-
-		IVRTrackedCamera *VRTrackedCamera()
-		{
-			CheckClear();
-			if ( m_pVRTrackedCamera == nullptr )
-			{
-				EVRInitError eError;
-				m_pVRTrackedCamera = ( IVRTrackedCamera * )VR_GetGenericInterface( IVRTrackedCamera_Version, &eError );
-			}
-			return m_pVRTrackedCamera;
-		}
-
-	private:
-		IVRSystem			*m_pVRSystem;
-		IVRChaperone		*m_pVRChaperone;
-		IVRChaperoneSetup	*m_pVRChaperoneSetup;
-		IVRCompositor		*m_pVRCompositor;
-		IVROverlay			*m_pVROverlay;
-		IVRResources		*m_pVRResources;
-		IVRRenderModels		*m_pVRRenderModels;
-		IVRExtendedDisplay	*m_pVRExtendedDisplay;
-		IVRSettings			*m_pVRSettings;
-		IVRApplications		*m_pVRApplications;
-		IVRTrackedCamera	*m_pVRTrackedCamera;
-		IVRScreenshots		*m_pVRScreenshots;
-	};
-
-	inline COpenVRContext &OpenVRInternal_ModuleContext()
-	{
-		static void *ctx[ sizeof( COpenVRContext ) / sizeof( void * ) ];
-		return *( COpenVRContext * )ctx; // bypass zero-init constructor
-	}
-
-	inline IVRSystem *VR_CALLTYPE VRSystem() { return OpenVRInternal_ModuleContext().VRSystem(); }
-	inline IVRChaperone *VR_CALLTYPE VRChaperone() { return OpenVRInternal_ModuleContext().VRChaperone(); }
-	inline IVRChaperoneSetup *VR_CALLTYPE VRChaperoneSetup() { return OpenVRInternal_ModuleContext().VRChaperoneSetup(); }
-	inline IVRCompositor *VR_CALLTYPE VRCompositor() { return OpenVRInternal_ModuleContext().VRCompositor(); }
-	inline IVROverlay *VR_CALLTYPE VROverlay() { return OpenVRInternal_ModuleContext().VROverlay(); }
-	inline IVRScreenshots *VR_CALLTYPE VRScreenshots() { return OpenVRInternal_ModuleContext().VRScreenshots(); }
-	inline IVRRenderModels *VR_CALLTYPE VRRenderModels() { return OpenVRInternal_ModuleContext().VRRenderModels(); }
-	inline IVRApplications *VR_CALLTYPE VRApplications() { return OpenVRInternal_ModuleContext().VRApplications(); }
-	inline IVRSettings *VR_CALLTYPE VRSettings() { return OpenVRInternal_ModuleContext().VRSettings(); }
-	inline IVRResources *VR_CALLTYPE VRResources() { return OpenVRInternal_ModuleContext().VRResources(); }
-	inline IVRExtendedDisplay *VR_CALLTYPE VRExtendedDisplay() { return OpenVRInternal_ModuleContext().VRExtendedDisplay(); }
-	inline IVRTrackedCamera *VR_CALLTYPE VRTrackedCamera() { return OpenVRInternal_ModuleContext().VRTrackedCamera(); }
-
-	inline void COpenVRContext::Clear()
-	{
-		m_pVRSystem = nullptr;
-		m_pVRChaperone = nullptr;
-		m_pVRChaperoneSetup = nullptr;
-		m_pVRCompositor = nullptr;
-		m_pVROverlay = nullptr;
-		m_pVRRenderModels = nullptr;
-		m_pVRExtendedDisplay = nullptr;
-		m_pVRSettings = nullptr;
-		m_pVRApplications = nullptr;
-		m_pVRTrackedCamera = nullptr;
-		m_pVRResources = nullptr;
-		m_pVRScreenshots = nullptr;
-	}
-
-	VR_INTERFACE uint32_t VR_CALLTYPE VR_InitInternal( EVRInitError *peError, EVRApplicationType eApplicationType );
-	VR_INTERFACE void VR_CALLTYPE VR_ShutdownInternal();
-
-	/** Finds the active installation of vrclient.dll and initializes it */
-	inline IVRSystem *VR_Init( EVRInitError *peError, EVRApplicationType eApplicationType )
-	{
-		IVRSystem *pVRSystem = nullptr;
-
-		EVRInitError eError;
-		VRToken() = VR_InitInternal( &eError, eApplicationType );
-		COpenVRContext &ctx = OpenVRInternal_ModuleContext();
-		ctx.Clear();
-
-		if ( eError == VRInitError_None )
-		{
-			if ( VR_IsInterfaceVersionValid( IVRSystem_Version ) )
-			{
-				pVRSystem = VRSystem();
-			}
-			else
-			{
-				VR_ShutdownInternal();
-				eError = VRInitError_Init_InterfaceNotFound;
-			}
-		}
-
-		if ( peError )
-			*peError = eError;
-		return pVRSystem;
-	}
-
-	/** unloads vrclient.dll. Any interface pointers from the interface are
-	* invalid after this point */
-	inline void VR_Shutdown()
-	{
-		VR_ShutdownInternal();
-	}
-}
diff --git a/gfx/vr/osvr/ClientKit/ClientKitC.h b/gfx/vr/osvr/ClientKit/ClientKitC.h
deleted file mode 100644
index 8309e890d..000000000
--- a/gfx/vr/osvr/ClientKit/ClientKitC.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ClientKitC_h_GUID_8D7DF104_892D_4CB5_2302_7C6BB5BC985C
-#define INCLUDED_ClientKitC_h_GUID_8D7DF104_892D_4CB5_2302_7C6BB5BC985C
-
-#include <osvr/ClientKit/ContextC.h>
-#include <osvr/ClientKit/InterfaceC.h>
-#include <osvr/ClientKit/InterfaceCallbackC.h>
-#include <osvr/ClientKit/SystemCallbackC.h>
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/ContextC.h b/gfx/vr/osvr/ClientKit/ContextC.h
deleted file mode 100644
index e07e1b4a7..000000000
--- a/gfx/vr/osvr/ClientKit/ContextC.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @todo Apply annotation macros
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ContextC_h_GUID_3790F330_2425_4486_4C9F_20C300D7DED3
-#define INCLUDED_ContextC_h_GUID_3790F330_2425_4486_4C9F_20C300D7DED3
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @brief Initialize the library.
-
-    @param applicationIdentifier A null terminated string identifying your
-   application. Reverse DNS format strongly suggested.
-    @param flags initialization options (reserved) - pass 0 for now.
-
-    @returns Client context - will be needed for subsequent calls
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ClientContext osvrClientInit(
-    const char applicationIdentifier[], uint32_t flags OSVR_CPP_ONLY(= 0));
-
-/** @brief Updates the state of the context - call regularly in your mainloop.
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientUpdate(OSVR_ClientContext ctx);
-
-/** @brief Checks to see if the client context is fully started up and connected
-    properly to a server.
-
-    If this reports that the client context is not OK, there may not be a server
-    running, or you may just have to call osvrClientUpdate() a few times to
-    permit startup to finish. The return value of this call will not change from
-    failure to success without calling osvrClientUpdate().
-
-    @param ctx Client context
-
-    @return OSVR_RETURN_FAILURE if not yet fully connected/initialized, or if
-    some other error (null context) occurs.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientCheckStatus(OSVR_ClientContext ctx);
-
-/** @brief Shutdown the library.
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientShutdown(OSVR_ClientContext ctx);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/DisplayC.h b/gfx/vr/osvr/ClientKit/DisplayC.h
deleted file mode 100644
index 75155e6b3..000000000
--- a/gfx/vr/osvr/ClientKit/DisplayC.h
+++ /dev/null
@@ -1,506 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_DisplayC_h_GUID_8658EDC9_32A2_49A2_5F5C_10F67852AE74
-#define INCLUDED_DisplayC_h_GUID_8658EDC9_32A2_49A2_5F5C_10F67852AE74
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/RenderingTypesC.h>
-#include <osvr/Util/MatrixConventionsC.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/BoolC.h>
-#include <osvr/Util/RadialDistortionParametersC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup ClientKit
-    @{
-    @name Display API
-    @{
-*/
-
-/** @brief Opaque type of a display configuration. */
-typedef struct OSVR_DisplayConfigObject *OSVR_DisplayConfig;
-
-/** @brief Allocates a display configuration object populated with data from the
-    OSVR system.
-
-    Before this call will succeed, your application will need to be correctly
-   and fully connected to an OSVR server. You may consider putting this call in
-   a loop alternating with osvrClientUpdate() until this call succeeds.
-
-    Data provided by a display configuration object:
-
-    - The logical display topology (number and relationship of viewers, eyes,
-        and surfaces), which remains constant throughout the life of the
-        configuration object. (A method of notification of change here is TBD).
-    - Pose data for viewers (not required for rendering) and pose/view data for
-        eyes (used for rendering) which is based on tracker data: if used, these
-        should be queried every frame.
-    - Projection matrix data for surfaces, which while in current practice may
-        be relatively unchanging, we are not guaranteeing them to be constant:
-        these should be queried every frame.
-    - Video-input-relative viewport size/location for a surface: would like this
-        to be variable, but probably not feasible. If you have input, please
-        comment on the dev mailing list.
-    - Per-surface distortion strategy priorities/availabilities: constant. Note
-        the following, though...
-    - Per-surface distortion strategy parameters: variable, request each frame.
-        (Could make constant with a notification if needed?)
-
-    Important note: While most of this data is immediately available if you are
-   successful in getting a display config object, the pose-based data (viewer
-   pose, eye pose, eye view matrix) needs tracker state, so at least one (and in
-   practice, typically more) osvrClientUpdate() must be performed before a new
-   tracker report is available to populate that state. See
-   osvrClientCheckDisplayStartup() to query if all startup data is available.
-
-    @todo Decide if relative viewport should be constant in a display config,
-   and update docs accordingly.
-
-    @todo Decide if distortion params should be constant in a display config,
-   and update docs accordingly.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or some other
-    error occurred, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetDisplay(OSVR_ClientContext ctx, OSVR_DisplayConfig *disp);
-
-/** @brief Frees a display configuration object. The corresponding context must
-    still be open.
-
-    If you fail to call this, it will be automatically called as part of
-    clean-up when the corresponding context is closed.
-
-    @return OSVR_RETURN_FAILURE if a null config was passed, or if the given
-    display object was already freed.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientFreeDisplay(OSVR_DisplayConfig disp);
-
-/** @brief Checks to see if a display is fully configured and ready, including
-    having received its first pose update.
-
-    Once this first succeeds, it will continue to succeed for the lifetime of
-    the display config object, so it is not necessary to keep calling once you
-    get a successful result.
-
-    @return OSVR_RETURN_FAILURE if a null config was passed, or if the given
-    display config object was otherwise not ready for full use.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientCheckDisplayStartup(OSVR_DisplayConfig disp);
-
-/** @brief A display config can have one or more display inputs to pass pixels
-    over (HDMI/DVI connections, etc): retrieve the number of display inputs in
-   the current configuration.
-
-    @param disp Display config object.
-    @param[out] numDisplayInputs Number of display inputs in the logical display
-    topology, **constant** throughout the active, valid lifetime of a display
-    config object.
-
-    @sa OSVR_DisplayInputCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in
-   which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumDisplayInputs(
-    OSVR_DisplayConfig disp, OSVR_DisplayInputCount *numDisplayInputs);
-
-/** @brief Retrieve the pixel dimensions of a given display input for a display
-   config
-
-    @param disp Display config object.
-    @param displayInputIndex The zero-based index of the display input.
-    @param[out] width Width (in pixels) of the display input.
-    @param[out] height Height (in pixels) of the display input.
-
-    The out parameters are **constant** throughout the active, valid lifetime of
-    a display config object.
-
-    @sa OSVR_DisplayDimension
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in
-   which case the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetDisplayDimensions(
-    OSVR_DisplayConfig disp, OSVR_DisplayInputCount displayInputIndex,
-    OSVR_DisplayDimension *width, OSVR_DisplayDimension *height);
-
-/** @brief A display config can have one (or theoretically more) viewers:
-    retrieve the viewer count.
-
-    @param disp Display config object.
-    @param[out] viewers Number of viewers in the logical display topology,
-    **constant** throughout the active, valid lifetime of a display config
-    object.
-
-    @sa OSVR_ViewerCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-   the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetNumViewers(OSVR_DisplayConfig disp, OSVR_ViewerCount *viewers);
-
-/** @brief Get the pose of a viewer in a display config.
-
-    Note that there may not necessarily be any surfaces rendered from this pose
-    (it's the unused "center" eye in a stereo configuration, for instance) so
-    only use this if it makes integration into your engine or existing
-    applications (not originally designed for stereo) easier.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the pose argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerPose(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_Pose3 *pose);
-
-/** @brief Each viewer in a display config can have one or more "eyes" which
-    have a substantially similar pose: get the count.
-
-    @param disp Display config object.
-    @param viewer Viewer ID
-    @param[out] eyes Number of eyes for this viewer in the logical display
-   topology, **constant** throughout the active, valid lifetime of a display
-   config object
-
-    @sa OSVR_EyeCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumEyesForViewer(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount *eyes);
-
-/** @brief Get the "viewpoint" for the given eye of a viewer in a display
-   config.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param[out] pose Room-space pose (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the pose argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyePose(OSVR_DisplayConfig disp, OSVR_ViewerCount viewer,
-                           OSVR_EyeCount eye, OSVR_Pose3 *pose);
-
-/** @brief Get the view matrix (inverse of pose) for the given eye of a
-    viewer in a display config - matrix of **doubles**.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] mat Pass a double[::OSVR_MATRIX_SIZE] to get the transformation
-    matrix from room space to eye space (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerEyeViewMatrixd(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_MatrixConventions flags, double *mat);
-
-/** @brief Get the view matrix (inverse of pose) for the given eye of a
-    viewer in a display config - matrix of **floats**.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] mat Pass a float[::OSVR_MATRIX_SIZE] to get the transformation
-    matrix from room space to eye space (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerEyeViewMatrixf(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_MatrixConventions flags, float *mat);
-
-/** @brief Each eye of each viewer in a display config has one or more surfaces
-    (aka "screens") on which content should be rendered.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param[out] surfaces Number of surfaces (numbered [0, surfaces - 1]) for the
-    given viewer and eye. **Constant** throughout the active, valid lifetime of
-    a display config object.
-
-    @sa OSVR_SurfaceCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumSurfacesForViewerEye(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount *surfaces);
-
-/** @brief Get the dimensions/location of the viewport **within the display
-    input** for a surface seen by an eye of a viewer in a display config. (This
-    does not include other video inputs that may be on a single virtual desktop,
-    etc. or explicitly account for display configurations that use multiple
-    video inputs. It does not necessarily indicate that a viewport in the sense
-    of glViewport must be created with these parameters, though the parameter
-    order matches for convenience.)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] left Output: Distance in pixels from the left of the video input
-    to the left of the viewport.
-    @param[out] bottom Output: Distance in pixels from the bottom of the video
-    input to the bottom of the viewport.
-    @param[out] width Output: Width of viewport in pixels.
-    @param[out] height Output: Height of viewport in pixels.
-
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetRelativeViewportForViewerEyeSurface(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_ViewportDimension *left,
-    OSVR_ViewportDimension *bottom, OSVR_ViewportDimension *width,
-    OSVR_ViewportDimension *height);
-
-/** @brief Get the index of the display input for a surface seen by an eye of a
-   viewer in a display config.
-
-    This is the OSVR-assigned display input: it may not (and in practice,
-    usually will not) match any platform-specific display indices. This function
-    exists to associate surfaces with video inputs as enumerated by
-    osvrClientGetNumDisplayInputs().
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] displayInput Zero-based index of the display input pixels for
-    this surface are tranmitted over.
-
-    This association is **constant** throughout the active, valid lifetime of a
-    display config object.
-
-    @sa osvrClientGetNumDisplayInputs(),
-    osvrClientGetRelativeViewportForViewerEyeSurface()
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which
-    case the output argument is unmodified.
- */
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceDisplayInputIndex(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_DisplayInputCount *displayInput);
-
-/** @brief Get the projection matrix for a surface seen by an eye of a viewer
-    in a display config. (double version)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param near Distance from viewpoint to near clipping plane - must be
-    positive.
-    @param far Distance from viewpoint to far clipping plane - must be positive
-    and not equal to near, typically greater than near.
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] matrix Output projection matrix: supply an array of 16
-    (::OSVR_MATRIX_SIZE) doubles.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionMatrixd(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, double near, double far,
-    OSVR_MatrixConventions flags, double *matrix);
-
-/** @brief Get the projection matrix for a surface seen by an eye of a viewer
-    in a display config. (float version)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param near Distance to near clipping plane - must be nonzero, typically
-    positive.
-    @param far Distance to far clipping plane - must be nonzero, typically
-    positive and greater than near.
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] matrix Output projection matrix: supply an array of 16
-    (::OSVR_MATRIX_SIZE) floats.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionMatrixf(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, float near, float far,
-    OSVR_MatrixConventions flags, float *matrix);
-
-/** @brief Get the clipping planes (positions at unit distance) for a surface
-   seen by an eye of a viewer
-    in a display config.
-
-    This is only for use in integrations that cannot accept a fully-formulated
-    projection matrix as returned by
-    osvrClientGetViewerEyeSurfaceProjectionMatrixf() or
-    osvrClientGetViewerEyeSurfaceProjectionMatrixd(), and may not necessarily
-    provide the same optimizations.
-
-    As all the planes are given at unit (1) distance, before passing these
-   planes to a consuming function in your application/engine, you will typically
-   divide them by your near clipping plane distance.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] left Distance to left clipping plane
-    @param[out] right Distance to right clipping plane
-    @param[out] bottom Distance to bottom clipping plane
-    @param[out] top Distance to top clipping plane
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionClippingPlanes(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, double *left, double *right, double *bottom,
-    double *top);
-
-/** @brief Determines if a surface seen by an eye of a viewer in a display
-    config requests some distortion to be performed.
-
-    This simply reports true or false, and does not specify which kind of
-    distortion implementations have been parameterized for this display. For
-    each distortion implementation your application supports, you'll want to
-    call the corresponding priority function to find out if it is available.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] distortionRequested Output parameter: whether distortion is
-    requested. **Constant** throughout the active, valid lifetime of a display
-    config object.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientDoesViewerEyeSurfaceWantDistortion(OSVR_DisplayConfig disp,
-                                             OSVR_ViewerCount viewer,
-                                             OSVR_EyeCount eye,
-                                             OSVR_SurfaceCount surface,
-                                             OSVR_CBool *distortionRequested);
-
-/** @brief Returns the priority/availability of radial distortion parameters for
-    a surface seen by an eye of a viewer in a display config.
-
-    If osvrClientDoesViewerEyeSurfaceWantDistortion() reports false, then the
-    display does not request distortion of any sort, and thus neither this nor
-    any other distortion strategy priority function will report an "available"
-    priority.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] priority Output: the priority level. Negative values
-    (canonically OSVR_DISTORTION_PRIORITY_UNAVAILABLE) indicate this technique
-    not available, higher values indicate higher preference for the given
-    technique based on the device's description. **Constant** throughout the
-    active, valid lifetime of a display config object.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceRadialDistortionPriority(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_DistortionPriority *priority);
-
-/** @brief Returns the radial distortion parameters, if known/requested, for a
-    surface seen by an eye of a viewer in a display config.
-
-    Will only succeed if osvrClientGetViewerEyeSurfaceRadialDistortionPriority()
-    reports a non-negative priority.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] params Output: the parameters for radial distortion
-
-    @return OSVR_RETURN_FAILURE if this surface does not have these parameters
-    described, or if invalid parameters were passed, in which case the output
-    argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceRadialDistortion(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_RadialDistortionParameters *params);
-
-/** @}
-    @}
-*/
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/Export.h b/gfx/vr/osvr/ClientKit/Export.h
deleted file mode 100644
index 94d5f44f4..000000000
--- a/gfx/vr/osvr/ClientKit/Export.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/** @file
-    @brief Automatically-generated export header - do not edit!
-
-    @date 2016
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-// Copyright 2016 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef OSVR_CLIENTKIT_EXPORT_H
-#define OSVR_CLIENTKIT_EXPORT_H
-
-#ifdef OSVR_CLIENTKIT_STATIC_DEFINE
-#  define OSVR_CLIENTKIT_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT
-#endif
-
-/* Per-compiler advance preventative definition */
-#if defined(__BORLANDC__) || defined(__CODEGEARC__) || defined(__HP_aCC) ||    \
-    defined(__PGI) || defined(__WATCOMC__)
-/* Compilers that don't support deprecated, according to CMake. */
-#  ifndef OSVR_CLIENTKIT_DEPRECATED
-#    define OSVR_CLIENTKIT_DEPRECATED
-#  endif
-#endif
-
-/* Check for attribute support */
-#if defined(__INTEL_COMPILER)
-/* Checking before GNUC because Intel implements GNU extensions,
- * so it chooses to define __GNUC__ as well. */
-#  if __INTEL_COMPILER >= 1200
-/* Intel compiler 12.0 or newer can handle these attributes per CMake */
-#    define OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-
-#elif defined(__GNUC__)
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
-/* GCC 4.2+ */
-#    define OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-#endif
-
-/* Per-platform defines */
-#if defined(_MSC_VER)
-/* MSVC on Windows */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  ifdef osvrClientKit_EXPORTS
-      /* We are building this library */
-#    define OSVR_CLIENTKIT_EXPORT __declspec(dllexport)
-#  else
-      /* We are using this library */
-#    define OSVR_CLIENTKIT_EXPORT __declspec(dllimport)
-#  endif
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __declspec(deprecated)
-#endif
-
-#elif defined(_WIN32) && defined(__GNUC__)
-/* GCC-compatible on Windows */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  ifdef osvrClientKit_EXPORTS
-      /* We are building this library */
-#    define OSVR_CLIENTKIT_EXPORT __attribute__((dllexport))
-#  else
-      /* We are using this library */
-#    define OSVR_CLIENTKIT_EXPORT __attribute__((dllimport))
-#  endif
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#elif defined(OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES) ||         \
-    (defined(__APPLE__) && defined(__MACH__))
-/* GCC4.2+ compatible (assuming something *nix-like) and Mac OS X */
-/* (The first macro is defined at the top of the file, if applicable) */
-/* see https://gcc.gnu.org/wiki/Visibility */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-  /* We are building/using this library */
-#  define OSVR_CLIENTKIT_EXPORT __attribute__((visibility("default")))
-#endif
-
-#ifndef OSVR_CLIENTKIT_NO_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT __attribute__((visibility("hidden")))
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#endif
-/* End of platform ifdefs */
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  define OSVR_CLIENTKIT_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_NO_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_DEPRECATED_EXPORT
-#  define OSVR_CLIENTKIT_DEPRECATED_EXPORT OSVR_CLIENTKIT_EXPORT OSVR_CLIENTKIT_DEPRECATED
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_DEPRECATED_NO_EXPORT
-#  define OSVR_CLIENTKIT_DEPRECATED_NO_EXPORT OSVR_CLIENTKIT_NO_EXPORT OSVR_CLIENTKIT_DEPRECATED
-#endif
-
-/* Clean up after ourselves */
-#undef OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceC.h b/gfx/vr/osvr/ClientKit/InterfaceC.h
deleted file mode 100644
index 728350536..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceC.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_InterfaceC_h_GUID_D90BBAA6_AD62_499D_C023_2F6ED8987C17
-#define INCLUDED_InterfaceC_h_GUID_D90BBAA6_AD62_499D_C023_2F6ED8987C17
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup ClientKit
-@{
-*/
-
-/** @brief Get the interface associated with the given path.
-    @param ctx Client context
-    @param path A resource path (null-terminated string)
-    @param[out] iface The interface object. May be freed when no longer needed,
-   otherwise it will be freed when the context is closed.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetInterface(OSVR_ClientContext ctx, const char path[],
-                       OSVR_ClientInterface *iface);
-
-/** @brief Free an interface object before context closure.
-
-    @param ctx Client context
-    @param iface The interface object
-
-    @returns OSVR_RETURN_SUCCESS unless a null context or interface was passed
-   or the given interface was not found in the context (i.e. had already been
-   freed)
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientFreeInterface(OSVR_ClientContext ctx, OSVR_ClientInterface iface);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h b/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h
deleted file mode 100644
index dde1cef97..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_InterfaceCallbacksC_h_GUID_8F16E6CB_F998_4ABC_5B6B_4FC1E4B71BC9
-#define INCLUDED_InterfaceCallbacksC_h_GUID_8F16E6CB_F998_4ABC_5B6B_4FC1E4B71BC9
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/ClientCallbackTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-#define OSVR_INTERFACE_CALLBACK_METHOD(TYPE)                                   \
-    /** @brief Register a callback for TYPE reports on an interface */         \
-    OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrRegister##TYPE##Callback(        \
-        OSVR_ClientInterface iface, OSVR_##TYPE##Callback cb, void *userdata);
-
-OSVR_INTERFACE_CALLBACK_METHOD(Pose)
-OSVR_INTERFACE_CALLBACK_METHOD(Position)
-OSVR_INTERFACE_CALLBACK_METHOD(Orientation)
-OSVR_INTERFACE_CALLBACK_METHOD(Velocity)
-OSVR_INTERFACE_CALLBACK_METHOD(LinearVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(AngularVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(Acceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(LinearAcceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(AngularAcceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(Button)
-OSVR_INTERFACE_CALLBACK_METHOD(Analog)
-OSVR_INTERFACE_CALLBACK_METHOD(Imaging)
-OSVR_INTERFACE_CALLBACK_METHOD(Location2D)
-OSVR_INTERFACE_CALLBACK_METHOD(Direction)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTracker2D)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTracker3D)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTrackerBlink)
-OSVR_INTERFACE_CALLBACK_METHOD(NaviVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(NaviPosition)
-
-#undef OSVR_INTERFACE_CALLBACK_METHOD
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceStateC.h b/gfx/vr/osvr/ClientKit/InterfaceStateC.h
deleted file mode 100644
index edf9f085c..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceStateC.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_InterfaceStateC_h_GUID_8F85D178_74B9_4AA9_4E9E_243089411408
-#define INCLUDED_InterfaceStateC_h_GUID_8F85D178_74B9_4AA9_4E9E_243089411408
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/ClientReportTypesC.h>
-#include <osvr/Util/TimeValueC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-#define OSVR_CALLBACK_METHODS(TYPE)                                            \
-    /** @brief Get TYPE state from an interface, returning failure if none     \
-     * exists */                                                               \
-    OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrGet##TYPE##State(                \
-        OSVR_ClientInterface iface, struct OSVR_TimeValue *timestamp,          \
-        OSVR_##TYPE##State *state);
-
-OSVR_CALLBACK_METHODS(Pose)
-OSVR_CALLBACK_METHODS(Position)
-OSVR_CALLBACK_METHODS(Orientation)
-OSVR_CALLBACK_METHODS(Velocity)
-OSVR_CALLBACK_METHODS(LinearVelocity)
-OSVR_CALLBACK_METHODS(AngularVelocity)
-OSVR_CALLBACK_METHODS(Acceleration)
-OSVR_CALLBACK_METHODS(LinearAcceleration)
-OSVR_CALLBACK_METHODS(AngularAcceleration)
-OSVR_CALLBACK_METHODS(Button)
-OSVR_CALLBACK_METHODS(Analog)
-OSVR_CALLBACK_METHODS(Location2D)
-OSVR_CALLBACK_METHODS(Direction)
-OSVR_CALLBACK_METHODS(EyeTracker2D)
-OSVR_CALLBACK_METHODS(EyeTracker3D)
-OSVR_CALLBACK_METHODS(EyeTrackerBlink)
-OSVR_CALLBACK_METHODS(NaviVelocity)
-OSVR_CALLBACK_METHODS(NaviPosition)
-
-#undef OSVR_CALLBACK_METHODS
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/SystemCallbackC.h b/gfx/vr/osvr/ClientKit/SystemCallbackC.h
deleted file mode 100644
index 2476d5f21..000000000
--- a/gfx/vr/osvr/ClientKit/SystemCallbackC.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_SystemCallbackC_h_GUID_543F3F04_343E_4389_08A0_DEA988EC23F7
-#define INCLUDED_SystemCallbackC_h_GUID_543F3F04_343E_4389_08A0_DEA988EC23F7
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/TransformsC.h b/gfx/vr/osvr/ClientKit/TransformsC.h
deleted file mode 100644
index 183497dfd..000000000
--- a/gfx/vr/osvr/ClientKit/TransformsC.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/** @file
-    @brief Header controlling the OSVR transformation hierarchy
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_TransformsC_h_GUID_5B5B7438_42D4_4095_E48A_90E2CC13498E
-#define INCLUDED_TransformsC_h_GUID_5B5B7438_42D4_4095_E48A_90E2CC13498E
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @brief Updates the internal "room to world" transformation (applied to all
-    tracker data for this client context instance) based on the user's head
-    orientation, so that the direction the user is facing becomes -Z to your
-    application. Only rotates about the Y axis (yaw).
-
-    Note that this method internally calls osvrClientUpdate() to get a head pose
-    so your callbacks may be called during its execution!
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientSetRoomRotationUsingHead(OSVR_ClientContext ctx);
-
-/** @brief Clears/resets the internal "room to world" transformation back to an
-   identity transformation - that is, clears the effect of any other
-   manipulation of the room to world transform.
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientClearRoomToWorldTransform(OSVR_ClientContext ctx);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/APIBaseC.h b/gfx/vr/osvr/Util/APIBaseC.h
deleted file mode 100644
index 4abe38550..000000000
--- a/gfx/vr/osvr/Util/APIBaseC.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/** @file
-    @brief Header providing basic C macros for defining API headers.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_APIBaseC_h_GUID_C5A2E769_2ADC_429E_D250_DF0883E6E5DB
-#define INCLUDED_APIBaseC_h_GUID_C5A2E769_2ADC_429E_D250_DF0883E6E5DB
-
-#ifdef __cplusplus
-#define OSVR_C_ONLY(X)
-#define OSVR_CPP_ONLY(X) X
-#define OSVR_EXTERN_C_BEGIN extern "C" {
-#define OSVR_EXTERN_C_END }
-#define OSVR_INLINE inline
-#else
-#define OSVR_C_ONLY(X) X
-#define OSVR_CPP_ONLY(X)
-#define OSVR_EXTERN_C_BEGIN
-#define OSVR_EXTERN_C_END
-#ifdef _MSC_VER
-#define OSVR_INLINE static __inline
-#else
-#define OSVR_INLINE static inline
-#endif
-#endif
-
-#endif
diff --git a/gfx/vr/osvr/Util/AnnotationMacrosC.h b/gfx/vr/osvr/Util/AnnotationMacrosC.h
deleted file mode 100644
index e086608c1..000000000
--- a/gfx/vr/osvr/Util/AnnotationMacrosC.h
+++ /dev/null
@@ -1,232 +0,0 @@
-/** @file
-    @brief Header containing macros for source-level annotation.
-
-    In theory, supporting MSVC SAL, as well as compatible GCC and
-    Clang attributes. In practice, expanded as time allows and requires.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_AnnotationMacrosC_h_GUID_48538D9B_35E3_4E9A_D2B0_D83D51DD5900
-#define INCLUDED_AnnotationMacrosC_h_GUID_48538D9B_35E3_4E9A_D2B0_D83D51DD5900
-
-#ifndef OSVR_DISABLE_ANALYSIS
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1700)
-/* Visual C++ (2012 and newer) */
-/* Using SAL attribute format:
- * http://msdn.microsoft.com/en-us/library/ms182032(v=vs.120).aspx */
-
-#include <sal.h>
-
-#define OSVR_IN _In_
-#define OSVR_IN_PTR _In_
-#define OSVR_IN_OPT _In_opt_
-#define OSVR_IN_STRZ _In_z_
-#define OSVR_IN_READS(NUM_ELEMENTS) _In_reads_(NUM_ELEMENTS)
-
-#define OSVR_OUT _Out_
-#define OSVR_OUT_PTR _Outptr_
-#define OSVR_OUT_OPT _Out_opt_
-
-#define OSVR_INOUT _Inout_
-#define OSVR_INOUT_PTR _Inout_
-
-#define OSVR_RETURN_WARN_UNUSED _Must_inspect_result_
-#define OSVR_RETURN_SUCCESS_CONDITION(X) _Return_type_success_(X)
-
-/* end of msvc section */
-#elif defined(__GNUC__) && (__GNUC__ >= 4)
-/* section for GCC and GCC-alikes */
-
-#if defined(__clang__)
-/* clang-specific section */
-#endif
-
-#define OSVR_FUNC_NONNULL(X) __attribute__((__nonnull__ X))
-#define OSVR_RETURN_WARN_UNUSED __attribute__((warn_unused_result))
-
-/* end of gcc section and compiler detection */
-#endif
-
-/* end of ndef disable analysis */
-#endif
-
-/* Fallback declarations */
-/**
-@defgroup annotation_macros Static analysis annotation macros
-@brief Wrappers for Microsoft's SAL annotations and others
-@ingroup Util
-
-Use of these is optional, but recommended particularly for C APIs,
-as well as any methods handling a buffer with a length.
-@{
-*/
-/** @name Parameter annotations
-
-    These indicate the role and valid values for parameters to functions.
-
-    At most one of these should be placed before a parameter's type name in the
-   function parameter list, in both the declaration and definition. (They must
-   match!)
-   @{
-*/
-/** @def OSVR_IN
-    @brief Indicates a required function parameter that serves only as input.
-*/
-#ifndef OSVR_IN
-#define OSVR_IN
-#endif
-
-/** @def OSVR_IN_PTR
-    @brief Indicates a required pointer (non-null) function parameter that
-    serves only as input.
-*/
-#ifndef OSVR_IN_PTR
-#define OSVR_IN_PTR
-#endif
-
-/** @def OSVR_IN_OPT
-    @brief Indicates a function parameter (pointer) that serves only as input,
-   but is optional and might be NULL.
-*/
-#ifndef OSVR_IN_OPT
-#define OSVR_IN_OPT
-#endif
-
-/** @def OSVR_IN_STRZ
-    @brief Indicates a null-terminated string function parameter that serves
-   only as input.
-*/
-#ifndef OSVR_IN_STRZ
-#define OSVR_IN_STRZ
-#endif
-
-/** @def OSVR_IN_READS(NUM_ELEMENTS)
-    @brief Indicates a buffer containing input with the specified number of
-   elements.
-
-    The specified number of elements is typically the name of another parameter.
-*/
-#ifndef OSVR_IN_READS
-#define OSVR_IN_READS(NUM_ELEMENTS)
-#endif
-
-/** @def OSVR_OUT
-    @brief Indicates a required function parameter that serves only as output.
-    In C code, since this usually means "pointer", you probably want
-   OSVR_OUT_PTR instead.
-*/
-#ifndef OSVR_OUT
-#define OSVR_OUT
-#endif
-
-/** @def OSVR_OUT_PTR
-    @brief Indicates a required pointer (non-null) function parameter that
-    serves only as output.
-*/
-#ifndef OSVR_OUT_PTR
-#define OSVR_OUT_PTR
-#endif
-
-/** @def OSVR_OUT_OPT
-    @brief Indicates a function parameter (pointer) that serves only as output,
-   but is optional and might be NULL
-*/
-#ifndef OSVR_OUT_OPT
-#define OSVR_OUT_OPT
-#endif
-
-/** @def OSVR_INOUT
-    @brief Indicates a required function parameter that is both read and written
-   to.
-
-    In C code, since this usually means "pointer", you probably want
-   OSVR_INOUT_PTR instead.
-*/
-#ifndef OSVR_INOUT
-#define OSVR_INOUT
-#endif
-
-/** @def OSVR_INOUT_PTR
-    @brief Indicates a required pointer (non-null) function parameter that is
-    both read and written to.
-*/
-#ifndef OSVR_INOUT_PTR
-#define OSVR_INOUT_PTR
-#endif
-
-/* End of parameter annotations. */
-/** @} */
-
-/** @name Function annotations
-
-    These indicate particular relevant aspects about a function. Some
-    duplicate the effective meaning of parameter annotations: applying both
-    allows the fullest extent of static analysis tools to analyze the code,
-    and in some compilers, generate warnings.
-
-   @{
-*/
-/** @def OSVR_FUNC_NONNULL(X)
-    @brief Indicates the parameter(s) that must be non-null.
-
-    @param X A parenthesized list of parameters by number (1-based index)
-
-    Should be placed after a function declaration (but before the
-   semicolon). Repeating in the definition is not needed.
-*/
-#ifndef OSVR_FUNC_NONNULL
-#define OSVR_FUNC_NONNULL(X)
-#endif
-
-/** @def OSVR_RETURN_WARN_UNUSED
-    @brief Indicates the function has a return value that must be used (either a
-   security problem or an obvious bug if not).
-
-    Should be placed before the return value (and virtual keyword, if
-   applicable) in both declaration and definition.
-*/
-#ifndef OSVR_RETURN_WARN_UNUSED
-#define OSVR_RETURN_WARN_UNUSED
-#endif
-/* End of function annotations. */
-/** @} */
-
-/** @def OSVR_RETURN_SUCCESS_CONDITION
-    @brief Applied to a typedef, indicates the condition for `return` under
-   which a function returning it should be considered to have succeeded (thus
-   holding certain specifications).
-
-    Should be placed before the typename in a typedef, with the parameter
-   including the keyword `return` to substitute for the return value.
-*/
-#ifndef OSVR_RETURN_SUCCESS_CONDITION
-#define OSVR_RETURN_SUCCESS_CONDITION(X)
-#endif
-
-/* End of annotation group. */
-/** @} */
-#endif
diff --git a/gfx/vr/osvr/Util/BoolC.h b/gfx/vr/osvr/Util/BoolC.h
deleted file mode 100644
index b50ec7cfd..000000000
--- a/gfx/vr/osvr/Util/BoolC.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/** @file
-    @brief Header providing a C-safe "bool" type, because we can't depend on
-   Visual Studio providing proper C99 support in external-facing APIs.
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_BoolC_h_GUID_4F97BE90_2758_4BA5_B0FC_0CA92DEBA210
-#define INCLUDED_BoolC_h_GUID_4F97BE90_2758_4BA5_B0FC_0CA92DEBA210
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup Util
-@{
-*/
-
-/** @brief A pre-C99-safe bool type. Canonical values for true and false are
- * provided. Interpretation of other values is not defined. */
-typedef uint8_t OSVR_CBool;
-/** @brief Canonical "true" value for OSVR_CBool */
-#define OSVR_TRUE (1)
-/** @brief Canonical "false" value for OSVR_CBool */
-#define OSVR_FALSE (0)
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ChannelCountC.h b/gfx/vr/osvr/Util/ChannelCountC.h
deleted file mode 100644
index dc49b3b17..000000000
--- a/gfx/vr/osvr/Util/ChannelCountC.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ChannelCountC_h_GUID_CF7E5EE7_28B0_4B99_E823_DD701904B5D1
-#define INCLUDED_ChannelCountC_h_GUID_CF7E5EE7_28B0_4B99_E823_DD701904B5D1
-
-/* Internal Includes */
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-@{
-*/
-
-/** @brief The integer type specifying a number of channels/sensors or a
-channel/sensor index.
-*/
-typedef uint32_t OSVR_ChannelCount;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ClientCallbackTypesC.h b/gfx/vr/osvr/Util/ClientCallbackTypesC.h
deleted file mode 100644
index ae17381dc..000000000
--- a/gfx/vr/osvr/Util/ClientCallbackTypesC.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/** @file

-    @brief Header

-

-    Must be c-safe!

-

-    GENERATED - do not edit by hand!

-

-    @date 2014

-

-    @author

-    Sensics, Inc.

-    <http://sensics.com/osvr>

-*/

-

-/*

-// Copyright 2014 Sensics, Inc.

-//

-// Licensed under the Apache License, Version 2.0 (the "License");

-// you may not use this file except in compliance with the License.

-// You may obtain a copy of the License at

-//

-//     http://www.apache.org/licenses/LICENSE-2.0

-//

-// Unless required by applicable law or agreed to in writing, software

-// distributed under the License is distributed on an "AS IS" BASIS,

-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-// See the License for the specific language governing permissions and

-// limitations under the License.

-*/

-

-#ifndef INCLUDED_ClientCallbackTypesC_h_GUID_4D43A675_C8A4_4BBF_516F_59E6C785E4EF

-#define INCLUDED_ClientCallbackTypesC_h_GUID_4D43A675_C8A4_4BBF_516F_59E6C785E4EF

-

-/* Internal Includes */

-#include <osvr/Util/ClientReportTypesC.h>

-#include <osvr/Util/ImagingReportTypesC.h>

-#include <osvr/Util/ReturnCodesC.h>

-#include <osvr/Util/TimeValueC.h>

-

-/* Library/third-party includes */

-/* none */

-

-/* Standard includes */

-/* none */

-

-OSVR_EXTERN_C_BEGIN

-

-/** @addtogroup ClientKit

-    @{

-*/

-

-/** @name Report callback types

-    @{

-*/

-

-/* generated file - do not edit! */

-/** @brief C function type for a Pose callback */

-typedef void (*OSVR_PoseCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_PoseReport *report);

-/** @brief C function type for a Position callback */

-typedef void (*OSVR_PositionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_PositionReport *report);

-/** @brief C function type for a Orientation callback */

-typedef void (*OSVR_OrientationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_OrientationReport *report);

-/** @brief C function type for a Velocity callback */

-typedef void (*OSVR_VelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_VelocityReport *report);

-/** @brief C function type for a LinearVelocity callback */

-typedef void (*OSVR_LinearVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_LinearVelocityReport *report);

-/** @brief C function type for a AngularVelocity callback */

-typedef void (*OSVR_AngularVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AngularVelocityReport *report);

-/** @brief C function type for a Acceleration callback */

-typedef void (*OSVR_AccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AccelerationReport *report);

-/** @brief C function type for a LinearAcceleration callback */

-typedef void (*OSVR_LinearAccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_LinearAccelerationReport *report);

-/** @brief C function type for a AngularAcceleration callback */

-typedef void (*OSVR_AngularAccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AngularAccelerationReport *report);

-/** @brief C function type for a Button callback */

-typedef void (*OSVR_ButtonCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_ButtonReport *report);

-/** @brief C function type for a Analog callback */

-typedef void (*OSVR_AnalogCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AnalogReport *report);

-/** @brief C function type for a Imaging callback */

-typedef void (*OSVR_ImagingCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_ImagingReport *report);

-/** @brief C function type for a Location2D callback */

-typedef void (*OSVR_Location2DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_Location2DReport *report);

-/** @brief C function type for a Direction callback */

-typedef void (*OSVR_DirectionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_DirectionReport *report);

-/** @brief C function type for a EyeTracker2D callback */

-typedef void (*OSVR_EyeTracker2DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTracker2DReport *report);

-/** @brief C function type for a EyeTracker3D callback */

-typedef void (*OSVR_EyeTracker3DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTracker3DReport *report);

-/** @brief C function type for a EyeTrackerBlink callback */

-typedef void (*OSVR_EyeTrackerBlinkCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTrackerBlinkReport *report);

-/** @brief C function type for a NaviVelocity callback */

-typedef void (*OSVR_NaviVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_NaviVelocityReport *report);

-/** @brief C function type for a NaviPosition callback */

-typedef void (*OSVR_NaviPositionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_NaviPositionReport *report);

-

-/** @} */

-

-/** @} */

-

-OSVR_EXTERN_C_END

-

-#endif

diff --git a/gfx/vr/osvr/Util/ClientOpaqueTypesC.h b/gfx/vr/osvr/Util/ClientOpaqueTypesC.h
deleted file mode 100644
index 64eba6d61..000000000
--- a/gfx/vr/osvr/Util/ClientOpaqueTypesC.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/** @file
-    @brief Header declaring opaque types used by @ref Client and @ref ClientKit
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ClientOpaqueTypesC_h_GUID_24B79ED2_5751_4BA2_1690_BBD250EBC0C1
-#define INCLUDED_ClientOpaqueTypesC_h_GUID_24B79ED2_5751_4BA2_1690_BBD250EBC0C1
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-/** @brief Opaque handle that should be retained by your application. You need
-    only and exactly one.
-
-    Created by osvrClientInit() at application start.
-
-    You are required to clean up this handle with osvrClientShutdown().
-*/
-typedef struct OSVR_ClientContextObject *OSVR_ClientContext;
-
-/** @brief Opaque handle to an interface used for registering callbacks and
-   getting status.
-
-    You are not required to clean up this handle (it will be automatically
-   cleaned up when the context is), but you can if you are no longer using it,
-   using osvrClientFreeInterface() to inform the context that you no longer need
-   this interface.
-*/
-typedef struct OSVR_ClientInterfaceObject *OSVR_ClientInterface;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ClientReportTypesC.h b/gfx/vr/osvr/Util/ClientReportTypesC.h
deleted file mode 100644
index 85fa5a5a1..000000000
--- a/gfx/vr/osvr/Util/ClientReportTypesC.h
+++ /dev/null
@@ -1,348 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ClientReportTypesC_h_GUID_E79DAB07_78B7_4795_1EB9_CA6EEB274AEE
-#define INCLUDED_ClientReportTypesC_h_GUID_E79DAB07_78B7_4795_1EB9_CA6EEB274AEE
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/StdInt.h>
-
-#include <osvr/Util/Vec2C.h>
-#include <osvr/Util/Vec3C.h>
-#include <osvr/Util/ChannelCountC.h>
-#include <osvr/Util/BoolC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @name State types
-@{
-*/
-/** @brief Type of position state */
-typedef OSVR_Vec3 OSVR_PositionState;
-
-/** @brief Type of orientation state */
-typedef OSVR_Quaternion OSVR_OrientationState;
-
-/** @brief Type of pose state */
-typedef OSVR_Pose3 OSVR_PoseState;
-
-/** @brief Type of linear velocity state */
-typedef OSVR_Vec3 OSVR_LinearVelocityState;
-
-/** @brief The quaternion represents the incremental rotation taking place over
-    a period of dt seconds. Use of dt (which does not necessarily
-    have to be 1, as other velocity/acceleration representations imply) and an
-    incremental quaternion allows device reports to be scaled to avoid aliasing
-*/
-typedef struct OSVR_IncrementalQuaternion {
-    OSVR_Quaternion incrementalRotation;
-    double dt;
-} OSVR_IncrementalQuaternion;
-
-/** @brief Type of angular velocity state: an incremental quaternion, providing
-    the incremental rotation taking place due to velocity over a period of dt
-    seconds.
-*/
-typedef OSVR_IncrementalQuaternion OSVR_AngularVelocityState;
-
-/** @brief Struct for combined velocity state */
-typedef struct OSVR_VelocityState {
-    OSVR_LinearVelocityState linearVelocity;
-    /** @brief Whether the data source reports valid data for
-        #OSVR_VelocityState::linearVelocity */
-    OSVR_CBool linearVelocityValid;
-
-    OSVR_AngularVelocityState angularVelocity;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_VelocityState::angularVelocity */
-    OSVR_CBool angularVelocityValid;
-} OSVR_VelocityState;
-
-/** @brief Type of linear acceleration state */
-typedef OSVR_Vec3 OSVR_LinearAccelerationState;
-
-/** @brief Type of angular acceleration state
-*/
-typedef OSVR_IncrementalQuaternion OSVR_AngularAccelerationState;
-
-/** @brief Struct for combined acceleration state */
-typedef struct OSVR_AccelerationState {
-    OSVR_LinearAccelerationState linearAcceleration;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_AccelerationState::linearAcceleration */
-    OSVR_CBool linearAccelerationValid;
-
-    OSVR_AngularAccelerationState angularAcceleration;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_AccelerationState::angularAcceleration */
-    OSVR_CBool angularAccelerationValid;
-} OSVR_AccelerationState;
-
-/** @brief Type of button state */
-typedef uint8_t OSVR_ButtonState;
-
-/** @brief OSVR_ButtonState value indicating "button down" */
-#define OSVR_BUTTON_PRESSED (1)
-
-/** @brief OSVR_ButtonState value indicating "button up" */
-#define OSVR_BUTTON_NOT_PRESSED (0)
-
-/** @brief Type of analog channel state */
-typedef double OSVR_AnalogState;
-
-/** @} */
-
-/** @name Report types
-    @{
-*/
-/** @brief Report type for a position callback on a tracker interface */
-typedef struct OSVR_PositionReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The position vector */
-    OSVR_PositionState xyz;
-} OSVR_PositionReport;
-
-/** @brief Report type for an orientation callback on a tracker interface */
-typedef struct OSVR_OrientationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The rotation unit quaternion */
-    OSVR_OrientationState rotation;
-} OSVR_OrientationReport;
-
-/** @brief Report type for a pose (position and orientation) callback on a
-    tracker interface
-*/
-typedef struct OSVR_PoseReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The pose structure, containing a position vector and a rotation
-        quaternion
-    */
-    OSVR_PoseState pose;
-} OSVR_PoseReport;
-
-/** @brief Report type for a velocity (linear and angular) callback on a
-    tracker interface
-*/
-typedef struct OSVR_VelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The data state - note that not all fields are neccesarily valid,
-        use the `Valid` members to check the status of the other fields.
-    */
-    OSVR_VelocityState state;
-} OSVR_VelocityReport;
-
-/** @brief Report type for a linear velocity callback on a tracker interface
-*/
-typedef struct OSVR_LinearVelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_LinearVelocityState state;
-} OSVR_LinearVelocityReport;
-
-/** @brief Report type for an angular velocity callback on a tracker interface
-*/
-typedef struct OSVR_AngularVelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_AngularVelocityState state;
-} OSVR_AngularVelocityReport;
-
-/** @brief Report type for an acceleration (linear and angular) callback on a
-    tracker interface
-*/
-typedef struct OSVR_AccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The data state - note that not all fields are neccesarily valid,
-        use the `Valid` members to check the status of the other fields.
-    */
-    OSVR_AccelerationState state;
-} OSVR_AccelerationReport;
-
-/** @brief Report type for a linear acceleration callback on a tracker interface
-*/
-typedef struct OSVR_LinearAccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_LinearAccelerationState state;
-} OSVR_LinearAccelerationReport;
-
-/** @brief Report type for an angular acceleration callback on a tracker
-    interface
-*/
-typedef struct OSVR_AngularAccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_AngularAccelerationState state;
-} OSVR_AngularAccelerationReport;
-
-/** @brief Report type for a callback on a button interface */
-typedef struct OSVR_ButtonReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The button state: 1 is pressed, 0 is not pressed. */
-    OSVR_ButtonState state;
-} OSVR_ButtonReport;
-
-/** @brief Report type for a callback on an analog interface */
-typedef struct OSVR_AnalogReport {
-    /** @brief Identifies the sensor/channel that the report comes from */
-    int32_t sensor;
-    /** @brief The analog state. */
-    OSVR_AnalogState state;
-} OSVR_AnalogReport;
-
-/** @brief Type of location within a 2D region/surface, in normalized
-    coordinates (in range [0, 1] in standard OSVR coordinate system)
-*/
-typedef OSVR_Vec2 OSVR_Location2DState;
-
-/** @brief Report type for 2D location */
-typedef struct OSVR_Location2DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_Location2DState location;
-} OSVR_Location2DReport;
-
-/** @brief Type of unit directional vector in 3D with no particular origin */
-typedef OSVR_Vec3 OSVR_DirectionState;
-
-/** @brief Report type for 3D Direction vector */
-typedef struct OSVR_DirectionReport {
-    OSVR_ChannelCount sensor;
-    OSVR_DirectionState direction;
-} OSVR_DirectionReport;
-
-/** @brief Type of eye gaze direction in 3D which contains 3D vector (position)
-    containing gaze base point of the user's respective eye in 3D device
-    coordinates.
-*/
-typedef OSVR_PositionState OSVR_EyeGazeBasePoint3DState;
-
-/** @brief Type of eye gaze position in 2D which contains users's gaze/point of
-    regard in normalized display coordinates (in range [0, 1] in standard OSVR
-    coordinate system)
-*/
-typedef OSVR_Location2DState OSVR_EyeGazePosition2DState;
-
-// typedef OSVR_DirectionState OSVR_EyeGazeBasePoint3DState;
-
-/** @brief Type of 3D vector (direction vector) containing the normalized gaze
-    direction of user's respective eye */
-typedef OSVR_DirectionState OSVR_EyeGazeDirectionState;
-
-/** @brief State for 3D gaze report */
-typedef struct OSVR_EyeTracker3DState {
-    OSVR_CBool directionValid;
-    OSVR_DirectionState direction;
-    OSVR_CBool basePointValid;
-    OSVR_PositionState basePoint;
-} OSVR_EyeTracker3DState;
-
-/** @brief Report type for 3D gaze report */
-typedef struct OSVR_EyeTracker3DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTracker3DState state;
-} OSVR_EyeTracker3DReport;
-
-/** @brief State for 2D location report */
-typedef OSVR_Location2DState OSVR_EyeTracker2DState;
-
-/** @brief Report type for 2D location report */
-typedef struct OSVR_EyeTracker2DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTracker2DState state;
-} OSVR_EyeTracker2DReport;
-
-/** @brief State for a blink event */
-typedef OSVR_ButtonState OSVR_EyeTrackerBlinkState;
-
-/** @brief OSVR_EyeTrackerBlinkState value indicating an eyes blink had occurred
- */
-#define OSVR_EYE_BLINK (1)
-
-/** @brief OSVR_EyeTrackerBlinkState value indicating eyes are not blinking */
-#define OSVR_EYE_NO_BLINK (0)
-
-/** @brief Report type for a blink event */
-typedef struct OSVR_EyeTrackerBlinkReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTrackerBlinkState state;
-} OSVR_EyeTrackerBlinkReport;
-
-/** @brief Report type for an Imaging callback (forward declaration) */
-struct OSVR_ImagingReport;
-
-/** @brief Type of Navigation Velocity state */
-typedef OSVR_Vec2 OSVR_NaviVelocityState;
-
-/** @brief Type of Navigation Position state */
-typedef OSVR_Vec2 OSVR_NaviPositionState;
-
-/** @brief Report type for an navigation velocity callback on a tracker
- * interface */
-typedef struct OSVR_NaviVelocityReport {
-    OSVR_ChannelCount sensor;
-    /** @brief The 2D vector in world coordinate system, in meters/second */
-    OSVR_NaviVelocityState state;
-} OSVR_NaviVelocityReport;
-
-/** @brief Report type for an navigation position callback on a tracker
- * interface */
-typedef struct OSVR_NaviPositionReport {
-    OSVR_ChannelCount sensor;
-    /** @brief The 2D vector in world coordinate system, in meters, relative to
-     * starting position */
-    OSVR_NaviPositionState state;
-} OSVR_NaviPositionReport;
-
-/** @} */
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/Export.h b/gfx/vr/osvr/Util/Export.h
deleted file mode 100644
index f3e26b89f..000000000
--- a/gfx/vr/osvr/Util/Export.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/** @file
-    @brief Automatically-generated export header - do not edit!
-
-    @date 2016
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-// Copyright 2016 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef OSVR_UTIL_EXPORT_H
-#define OSVR_UTIL_EXPORT_H
-
-#ifdef OSVR_UTIL_STATIC_DEFINE
-#  define OSVR_UTIL_EXPORT
-#  define OSVR_UTIL_NO_EXPORT
-#endif
-
-/* Per-compiler advance preventative definition */
-#if defined(__BORLANDC__) || defined(__CODEGEARC__) || defined(__HP_aCC) ||    \
-    defined(__PGI) || defined(__WATCOMC__)
-/* Compilers that don't support deprecated, according to CMake. */
-#  ifndef OSVR_UTIL_DEPRECATED
-#    define OSVR_UTIL_DEPRECATED
-#  endif
-#endif
-
-/* Check for attribute support */
-#if defined(__INTEL_COMPILER)
-/* Checking before GNUC because Intel implements GNU extensions,
- * so it chooses to define __GNUC__ as well. */
-#  if __INTEL_COMPILER >= 1200
-/* Intel compiler 12.0 or newer can handle these attributes per CMake */
-#    define OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-
-#elif defined(__GNUC__)
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
-/* GCC 4.2+ */
-#    define OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-#endif
-
-/* Per-platform defines */
-#if defined(_MSC_VER)
-/* MSVC on Windows */
-
-#ifndef OSVR_UTIL_EXPORT
-#  ifdef osvrUtil_EXPORTS
-      /* We are building this library */
-#    define OSVR_UTIL_EXPORT __declspec(dllexport)
-#  else
-      /* We are using this library */
-#    define OSVR_UTIL_EXPORT __declspec(dllimport)
-#  endif
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __declspec(deprecated)
-#endif
-
-#elif defined(_WIN32) && defined(__GNUC__)
-/* GCC-compatible on Windows */
-
-#ifndef OSVR_UTIL_EXPORT
-#  ifdef osvrUtil_EXPORTS
-      /* We are building this library */
-#    define OSVR_UTIL_EXPORT __attribute__((dllexport))
-#  else
-      /* We are using this library */
-#    define OSVR_UTIL_EXPORT __attribute__((dllimport))
-#  endif
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#elif defined(OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES) ||         \
-    (defined(__APPLE__) && defined(__MACH__))
-/* GCC4.2+ compatible (assuming something *nix-like) and Mac OS X */
-/* (The first macro is defined at the top of the file, if applicable) */
-/* see https://gcc.gnu.org/wiki/Visibility */
-
-#ifndef OSVR_UTIL_EXPORT
-  /* We are building/using this library */
-#  define OSVR_UTIL_EXPORT __attribute__((visibility("default")))
-#endif
-
-#ifndef OSVR_UTIL_NO_EXPORT
-#  define OSVR_UTIL_NO_EXPORT __attribute__((visibility("hidden")))
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#endif
-/* End of platform ifdefs */
-
-/* fallback def */
-#ifndef OSVR_UTIL_EXPORT
-#  define OSVR_UTIL_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_NO_EXPORT
-#  define OSVR_UTIL_NO_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_DEPRECATED_EXPORT
-#  define OSVR_UTIL_DEPRECATED_EXPORT OSVR_UTIL_EXPORT OSVR_UTIL_DEPRECATED
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_DEPRECATED_NO_EXPORT
-#  define OSVR_UTIL_DEPRECATED_NO_EXPORT OSVR_UTIL_NO_EXPORT OSVR_UTIL_DEPRECATED
-#endif
-
-/* Clean up after ourselves */
-#undef OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-
-#endif
diff --git a/gfx/vr/osvr/Util/ImagingReportTypesC.h b/gfx/vr/osvr/Util/ImagingReportTypesC.h
deleted file mode 100644
index 1ce8b60d6..000000000
--- a/gfx/vr/osvr/Util/ImagingReportTypesC.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ImagingReportTypesC_h_GUID_746A7BF8_B92D_4585_CA72_DC5391DEDF24
-#define INCLUDED_ImagingReportTypesC_h_GUID_746A7BF8_B92D_4585_CA72_DC5391DEDF24
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/ChannelCountC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-typedef uint32_t OSVR_ImageDimension;
-typedef uint8_t OSVR_ImageChannels;
-typedef uint8_t OSVR_ImageDepth;
-
-/** @brief Type for raw buffer access to image data */
-typedef unsigned char OSVR_ImageBufferElement;
-
-typedef enum OSVR_ImagingValueType {
-    OSVR_IVT_UNSIGNED_INT = 0,
-    OSVR_IVT_SIGNED_INT = 1,
-    OSVR_IVT_FLOATING_POINT = 2
-} OSVR_ImagingValueType;
-
-typedef struct OSVR_ImagingMetadata {
-    /** @brief height in pixels */
-    OSVR_ImageDimension height;
-    /** @brief width in pixels */
-    OSVR_ImageDimension width;
-    /** @brief number of channels of data for each pixel */
-    OSVR_ImageChannels channels;
-    /** @brief the depth (size) in bytes of each channel - valid values are 1,
-     * 2, 4, and 8 */
-    OSVR_ImageDepth depth;
-    /** @brief Whether values are unsigned ints, signed ints, or floating point
-     */
-    OSVR_ImagingValueType type;
-
-} OSVR_ImagingMetadata;
-
-typedef struct OSVR_ImagingState {
-    OSVR_ImagingMetadata metadata;
-    OSVR_ImageBufferElement *data;
-} OSVR_ImagingState;
-
-typedef struct OSVR_ImagingReport {
-    OSVR_ChannelCount sensor;
-    OSVR_ImagingState state;
-} OSVR_ImagingReport;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/MatrixConventionsC.h b/gfx/vr/osvr/Util/MatrixConventionsC.h
deleted file mode 100644
index b1f2c2797..000000000
--- a/gfx/vr/osvr/Util/MatrixConventionsC.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_MatrixConventionsC_h_GUID_6FC7A4C6_E6C5_4A96_1C28_C3D21B909681
-#define INCLUDED_MatrixConventionsC_h_GUID_6FC7A4C6_E6C5_4A96_1C28_C3D21B909681
-
-/* Internal Includes */
-#include <osvr/Util/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/ReturnCodesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @defgroup MatrixConvention Matrix conventions and bit flags
-    @ingroup UtilMath
-*/
-
-/** @brief Type for passing matrix convention flags.
-    @ingroup MatrixConvention
-*/
-typedef uint16_t OSVR_MatrixConventions;
-
-#ifndef OSVR_DOXYGEN_EXTERNAL
-/** @brief Bitmasks for testing matrix conventions.
-    @ingroup MatrixConvention
-*/
-typedef enum OSVR_MatrixMasks {
-    OSVR_MATRIX_MASK_ROWMAJOR = 0x1,
-    OSVR_MATRIX_MASK_ROWVECTORS = 0x2,
-    OSVR_MATRIX_MASK_LHINPUT = 0x4,
-    OSVR_MATRIX_MASK_UNSIGNEDZ = 0x8
-} OSVR_MatrixMasks;
-#endif
-
-/** @defgroup MatrixFlags Matrix flags
-    @ingroup MatrixConvention
-
-    Bit flags for specifying matrix options. Only one option may be specified
-   per enum, with all the specified options combined with bitwise-or `|`.
-
-    Most methods that take matrix flags only obey ::OSVR_MatrixOrderingFlags and
-   ::OSVR_MatrixVectorFlags - the flags that affect memory order. The remaining
-   flags are for use with projection matrix generation API methods.
-
-    @{
-*/
-/** @brief Flag bit controlling output memory order */
-typedef enum OSVR_MatrixOrderingFlags {
-    /** @brief Column-major memory order (default) */
-    OSVR_MATRIX_COLMAJOR = 0x0,
-    /** @brief Row-major memory order */
-    OSVR_MATRIX_ROWMAJOR = OSVR_MATRIX_MASK_ROWMAJOR
-} OSVR_MatrixOrderingFlags;
-
-/** @brief Flag bit controlling expected input to matrices.
-    (Related to ::OSVR_MatrixOrderingFlags - setting one to non-default results
-    in an output change, but setting both to non-default results in effectively
-    no change in the output. If this blows your mind, just ignore this aside and
-    carry on.)
-*/
-typedef enum OSVR_MatrixVectorFlags {
-    /** @brief Matrix transforms column vectors (default) */
-    OSVR_MATRIX_COLVECTORS = 0x0,
-    /** @brief Matrix transforms row vectors */
-    OSVR_MATRIX_ROWVECTORS = OSVR_MATRIX_MASK_ROWVECTORS
-} OSVR_MatrixVectorFlags;
-
-/** @brief Flag bit to indicate coordinate system input to projection matrix */
-typedef enum OSVR_ProjectionMatrixInputFlags {
-    /** @brief Matrix takes vectors from a right-handed coordinate system
-       (default) */
-    OSVR_MATRIX_RHINPUT = 0x0,
-    /** @brief Matrix takes vectors from a left-handed coordinate system */
-    OSVR_MATRIX_LHINPUT = OSVR_MATRIX_MASK_LHINPUT
-
-} OSVR_ProjectionMatrixInputFlags;
-
-/** @brief Flag bit to indicate the desired post-projection Z value convention
- */
-typedef enum OSVR_ProjectionMatrixZFlags {
-    /** @brief Matrix maps the near and far planes to signed Z values (in the
-        range [-1, 1])  (default)*/
-    OSVR_MATRIX_SIGNEDZ = 0x0,
-    /** @brief Matrix maps the near and far planes to unsigned Z values (in the
-        range [0, 1]) */
-    OSVR_MATRIX_UNSIGNEDZ = OSVR_MATRIX_MASK_UNSIGNEDZ
-} OSVR_ProjectionMatrixZFlags;
-/** @} */ /* end of matrix flags group */
-
-enum {
-    /** @brief Constant for the number of elements in the matrices we use - 4x4.
-        @ingroup MatrixConvention
-    */
-    OSVR_MATRIX_SIZE = 16
-};
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief Set a matrix of doubles based on a Pose3.
-    @param pose The Pose3 to convert
-    @param flags Memory ordering flag - see @ref MatrixFlags
-    @param[out] mat an array of 16 doubles
-*/
-OSVR_UTIL_EXPORT OSVR_ReturnCode osvrPose3ToMatrixd(
-    OSVR_Pose3 const *pose, OSVR_MatrixConventions flags, double *mat);
-
-/** @brief Set a matrix of floats based on a Pose3.
-    @param pose The Pose3 to convert
-    @param flags Memory ordering flag - see @ref MatrixFlags
-    @param[out] mat an array of 16 floats
-*/
-OSVR_UTIL_EXPORT OSVR_ReturnCode osvrPose3ToMatrixf(
-    OSVR_Pose3 const *pose, OSVR_MatrixConventions flags, float *mat);
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detecting scalar
- * type) */
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         double *mat) {
-    return osvrPose3ToMatrixd(pose, flags, mat);
-}
-
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detecting scalar
- * type) */
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         float *mat) {
-    return osvrPose3ToMatrixf(pose, flags, mat);
-}
-
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detects scalar
- * and takes array rather than pointer) */
-template <typename Scalar>
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         Scalar mat[OSVR_MATRIX_SIZE]) {
-    return osvrPose3ToMatrix(pose, flags, &(mat[0]));
-}
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detects scalar,
- * takes array, takes pose by reference) */
-template <typename Scalar>
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const &pose,
-                                         OSVR_MatrixConventions flags,
-                                         Scalar mat[OSVR_MATRIX_SIZE]) {
-    return osvrPose3ToMatrix(&pose, flags, &(mat[0]));
-}
-
-#endif
-
-/** @} */
-
-#endif
diff --git a/gfx/vr/osvr/Util/PlatformConfig.h b/gfx/vr/osvr/Util/PlatformConfig.h
deleted file mode 100644
index 8342e4f8f..000000000
--- a/gfx/vr/osvr/Util/PlatformConfig.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/** @file

-    @brief Auto-configured header

-

-    If this filename ends in `.h`, don't edit it: your edits will

-    be lost next time this file is regenerated!

-

-    Must be c-safe!

-

-    @date 2014

-

-    @author

-    Sensics, Inc.

-    <http://sensics.com/osvr>

-*/

-

-/*

-// Copyright 2014 Sensics, Inc.

-//

-// Licensed under the Apache License, Version 2.0 (the "License");

-// you may not use this file except in compliance with the License.

-// You may obtain a copy of the License at

-//

-//     http://www.apache.org/licenses/LICENSE-2.0

-//

-// Unless required by applicable law or agreed to in writing, software

-// distributed under the License is distributed on an "AS IS" BASIS,

-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-// See the License for the specific language governing permissions and

-// limitations under the License.

-*/

-

-#ifndef INCLUDED_PlatformConfig_h_GUID_0D10E644_8114_4294_A839_699F39E1F0E0

-#define INCLUDED_PlatformConfig_h_GUID_0D10E644_8114_4294_A839_699F39E1F0E0

-

-/** @def OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-    @brief Does the system have struct timeval in <winsock2.h>?

-*/

-#define OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-

-/** @def OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H

-    @brief Does the system have struct timeval in <sys/time.h>?

-*/

-

-/*

-    MinGW and similar environments have both winsock and sys/time.h, so

-    we hide this define for disambiguation at the top level.

-*/

-#ifndef OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-/* #undef OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H */

-#endif

-

-#if defined(OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H) ||                         \

-    defined(OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H)

-#define OSVR_HAVE_STRUCT_TIMEVAL

-#endif

-

-/**

- * Platform-specific variables.

- *

- * Prefer testing for specific compiler or platform features instead of relying

- * on these variables.

- *

- */

-//@{

-/* #undef OSVR_AIX */

-/* #undef OSVR_ANDROID */

-/* #undef OSVR_BSDOS */

-/* #undef OSVR_FREEBSD */

-/* #undef OSVR_HPUX */

-/* #undef OSVR_IRIX */

-/* #undef OSVR_LINUX */

-/* #undef OSVR_KFREEBSD */

-/* #undef OSVR_NETBSD */

-/* #undef OSVR_OPENBSD */

-/* #undef OSVR_OFS1 */

-/* #undef OSVR_SCO_SV */

-/* #undef OSVR_UNIXWARE */

-/* #undef OSVR_XENIX */

-/* #undef OSVR_SUNOS */

-/* #undef OSVR_TRU64 */

-/* #undef OSVR_ULTRIX */

-/* #undef OSVR_CYGWIN */

-/* #undef OSVR_MACOSX */

-#define OSVR_WINDOWS

-//@}

-

-#endif

-

diff --git a/gfx/vr/osvr/Util/Pose3C.h b/gfx/vr/osvr/Util/Pose3C.h
deleted file mode 100644
index 173428cfc..000000000
--- a/gfx/vr/osvr/Util/Pose3C.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
-#define INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
-
-/* Internal Includes */
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Vec3C.h>
-#include <osvr/Util/QuaternionC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-
-/** @brief A structure defining a 3D (6DOF) rigid body pose: translation and
-    rotation.
-*/
-typedef struct OSVR_Pose3 {
-    /** @brief Position vector */
-    OSVR_Vec3 translation;
-    /** @brief Orientation as a unit quaternion */
-    OSVR_Quaternion rotation;
-} OSVR_Pose3;
-
-/** @brief Set a pose to identity */
-OSVR_INLINE void osvrPose3SetIdentity(OSVR_Pose3 *pose) {
-    osvrQuatSetIdentity(&(pose->rotation));
-    osvrVec3Zero(&(pose->translation));
-}
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/QuaternionC.h b/gfx/vr/osvr/Util/QuaternionC.h
deleted file mode 100644
index 8056c89a0..000000000
--- a/gfx/vr/osvr/Util/QuaternionC.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_QuaternionC_h_GUID_1470A5FE_8209_41A6_C19E_46077FDF9C66
-#define INCLUDED_QuaternionC_h_GUID_1470A5FE_8209_41A6_C19E_46077FDF9C66
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a quaternion, often a unit quaternion
- * representing 3D rotation.
-*/
-typedef struct OSVR_Quaternion {
-    /** @brief Internal data - direct access not recommended */
-    double data[4];
-} OSVR_Quaternion;
-
-#define OSVR_QUAT_MEMBER(COMPONENT, INDEX)                                     \
-    /** @brief Accessor for quaternion component COMPONENT */                  \
-    OSVR_INLINE double osvrQuatGet##COMPONENT(OSVR_Quaternion const *q) {      \
-        return q->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for quaternion component COMPONENT */                    \
-    OSVR_INLINE void osvrQuatSet##COMPONENT(OSVR_Quaternion *q, double val) {  \
-        q->data[INDEX] = val;                                                  \
-    }
-
-OSVR_QUAT_MEMBER(W, 0)
-OSVR_QUAT_MEMBER(X, 1)
-OSVR_QUAT_MEMBER(Y, 2)
-OSVR_QUAT_MEMBER(Z, 3)
-
-#undef OSVR_QUAT_MEMBER
-
-/** @brief Set a quaternion to the identity rotation */
-OSVR_INLINE void osvrQuatSetIdentity(OSVR_Quaternion *q) {
-    osvrQuatSetW(q, 1);
-    osvrQuatSetX(q, 0);
-    osvrQuatSetY(q, 0);
-    osvrQuatSetZ(q, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Quaternion const &quat) {
-    os << "(" << osvrQuatGetW(&quat) << ", (" << osvrQuatGetX(&quat) << ", "
-       << osvrQuatGetY(&quat) << ", " << osvrQuatGetZ(&quat) << "))";
-    return os;
-}
-#endif
-
-#endif
diff --git a/gfx/vr/osvr/Util/QuatlibInteropC.h b/gfx/vr/osvr/Util/QuatlibInteropC.h
deleted file mode 100644
index ef2a7fe12..000000000
--- a/gfx/vr/osvr/Util/QuatlibInteropC.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_QuatlibInteropC_h_GUID_85D92019_F0CC_419C_5F6D_F5A3134AA5D4
-#define INCLUDED_QuatlibInteropC_h_GUID_85D92019_F0CC_419C_5F6D_F5A3134AA5D4
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Pose3C.h>
-
-/* Library/third-party includes */
-#include <quat.h>
-
-/* Standard includes */
-#include <string.h>
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-OSVR_INLINE void osvrQuatToQuatlib(q_type dest, OSVR_Quaternion const *src) {
-    dest[Q_W] = osvrQuatGetW(src);
-    dest[Q_X] = osvrQuatGetX(src);
-    dest[Q_Y] = osvrQuatGetY(src);
-    dest[Q_Z] = osvrQuatGetZ(src);
-}
-
-OSVR_INLINE void osvrQuatFromQuatlib(OSVR_Quaternion *dest, q_type const src) {
-    osvrQuatSetW(dest, src[Q_W]);
-    osvrQuatSetX(dest, src[Q_X]);
-    osvrQuatSetY(dest, src[Q_Y]);
-    osvrQuatSetZ(dest, src[Q_Z]);
-}
-
-OSVR_INLINE void osvrVec3ToQuatlib(q_vec_type dest, OSVR_Vec3 const *src) {
-    memcpy((void *)(dest), (void const *)(src->data), sizeof(double) * 3);
-}
-
-OSVR_INLINE void osvrVec3FromQuatlib(OSVR_Vec3 *dest, q_vec_type const src) {
-    memcpy((void *)(dest->data), (void const *)(src), sizeof(double) * 3);
-}
-
-OSVR_INLINE void osvrPose3ToQuatlib(q_xyz_quat_type *dest,
-                                    OSVR_Pose3 const *src) {
-    osvrVec3ToQuatlib(dest->xyz, &(src->translation));
-    osvrQuatToQuatlib(dest->quat, &(src->rotation));
-}
-
-OSVR_INLINE void osvrPose3FromQuatlib(OSVR_Pose3 *dest,
-                                      q_xyz_quat_type const *src) {
-    osvrVec3FromQuatlib(&(dest->translation), src->xyz);
-    osvrQuatFromQuatlib(&(dest->rotation), src->quat);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-#endif
diff --git a/gfx/vr/osvr/Util/RadialDistortionParametersC.h b/gfx/vr/osvr/Util/RadialDistortionParametersC.h
deleted file mode 100644
index ac85a680e..000000000
--- a/gfx/vr/osvr/Util/RadialDistortionParametersC.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_RadialDistortionParametersC_h_GUID_925BCEB1_BACA_4DA7_5133_FFF560C72EBD
-#define INCLUDED_RadialDistortionParametersC_h_GUID_925BCEB1_BACA_4DA7_5133_FFF560C72EBD
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Vec2C.h>
-#include <osvr/Util/Vec3C.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-@{
-*/
-
-/** @brief Parameters for a per-color-component radial distortion shader
-*/
-typedef struct OSVR_RadialDistortionParameters {
-    /** @brief Vector of K1 coefficients for the R, G, B channels*/
-    OSVR_Vec3 k1;
-    /** @brief Center of projection for the radial distortion, relative to the
-        bounds of this surface.
-        */
-    OSVR_Vec2 centerOfProjection;
-} OSVR_RadialDistortionParameters;
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/RenderingTypesC.h b/gfx/vr/osvr/Util/RenderingTypesC.h
deleted file mode 100644
index 51ec0cc09..000000000
--- a/gfx/vr/osvr/Util/RenderingTypesC.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/** @file
-    @brief Header with integer types for Viewer, Eye, and Surface
-   counts/indices, as well as viewport information.
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_RenderingTypesC_h_GUID_6689A6CA_76AC_48AC_A0D0_2902BC95AC35
-#define INCLUDED_RenderingTypesC_h_GUID_6689A6CA_76AC_48AC_A0D0_2902BC95AC35
-
-/* Internal Includes */
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-@{
-*/
-
-/** @brief A count or index for a display input in a display config.
-*/
-typedef uint8_t OSVR_DisplayInputCount;
-
-/** @brief The integer type used in specification of size or location of a
-    display input, in pixels.
-*/
-typedef int32_t OSVR_DisplayDimension;
-
-/** @brief The integer type specifying a number of viewers in a system.
-
-    A "head" is a viewer (though not all viewers are necessarily heads).
-
-    The count is output from osvrClientGetNumViewers().
-
-    When used as an ID/index, it is zero-based, so values range from 0 to (count
-    - 1) inclusive.
-
-    The most frequent count is 1, though higher values are theoretically
-    possible. If you do not handle higher values, do still check and alert the
-    user if their system reports a higher number, as your application may not
-    behave as the user expects.
-*/
-typedef uint32_t OSVR_ViewerCount;
-
-/** @brief The integer type specifying the number of eyes (viewpoints) of a
-    viewer.
-
-    The count for a given viewer is output from osvrClientGetNumEyesForViewer().
-
-    When used as an ID/index, it is zero-based,so values range from 0 to (count
-    - 1) inclusive, for a given viewer.
-
-    Use as an ID/index is not meaningful except in conjunction with the ID of
-    the corresponding viewer. (that is, there is no overall "eye 0", but "viewer
-    0, eye 0" is meaningful.)
-
-    In practice, the most frequent counts are 1 (e.g. mono) and 2 (e.g. stereo),
-    and for example the latter results in eyes with ID 0 and 1 for the viewer.
-    There is no innate or consistent semantics/meaning ("left" or "right") to
-    indices guaranteed at this time, and applications should not try to infer
-    any.
-*/
-typedef uint8_t OSVR_EyeCount;
-
-/** @brief The integer type specifying the number of surfaces seen by a viewer's
-    eye.
-
-    The count for a given viewer and eye is output from
-    osvrClientGetNumSurfacesForViewerEye(). Note that the count is not
-    necessarily equal between eyes of a viewer.
-
-    When used as an ID/index, it is zero-based, so values range from 0 to (count
-    - 1) inclusive, for a given viewer and eye.
-
-    Use as an ID/index is not meaningful except in conjunction with the IDs of
-    the corresponding viewer and eye. (that is, there is no overall "surface 0",
-    but "viewer 0, eye 0, surface 0" is meaningful.)
-*/
-typedef uint32_t OSVR_SurfaceCount;
-
-/** @brief The integer type used in specification of size or location of a
-    viewport.
-*/
-typedef int32_t OSVR_ViewportDimension;
-
-/** @brief The integer type used to indicate relative priorities of a display
-    distortion strategy. Negative values are defined to mean that strategy is
-    unavailable.
-
-    @sa OSVR_DISTORTION_PRIORITY_UNAVAILABLE
-*/
-typedef int32_t OSVR_DistortionPriority;
-
-/** @brief The constant to return as an OSVR_DistortionPriority if a given
-    strategy is not available for a surface.
-
-    @sa OSVR_DistortionPriority
-*/
-#define OSVR_DISTORTION_PRIORITY_UNAVAILABLE (-1)
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ReturnCodesC.h b/gfx/vr/osvr/Util/ReturnCodesC.h
deleted file mode 100644
index 971798ea4..000000000
--- a/gfx/vr/osvr/Util/ReturnCodesC.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/** @file
-    @brief Header declaring a type and values for simple C return codes.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_ReturnCodesC_h_GUID_C81A2FDE_E5BB_4AAA_70A4_C616DD7C141A
-#define INCLUDED_ReturnCodesC_h_GUID_C81A2FDE_E5BB_4AAA_70A4_C616DD7C141A
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-    @{
-*/
-/** @name Return Codes
-    @{
-*/
-/** @brief The "success" value for an OSVR_ReturnCode */
-#define OSVR_RETURN_SUCCESS (0)
-/** @brief The "failure" value for an OSVR_ReturnCode */
-#define OSVR_RETURN_FAILURE (1)
-/** @brief Return type from C API OSVR functions. */
-typedef OSVR_RETURN_SUCCESS_CONDITION(
-    return == OSVR_RETURN_SUCCESS) char OSVR_ReturnCode;
-/** @} */
-
-/** @} */ /* end of group */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/StdInt.h b/gfx/vr/osvr/Util/StdInt.h
deleted file mode 100644
index c9462b62c..000000000
--- a/gfx/vr/osvr/Util/StdInt.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/** @file
-    @brief Header wrapping the C99 standard `stdint` header.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_StdInt_h_GUID_C1AAF35C_C704_4DB7_14AC_615730C4619B
-#define INCLUDED_StdInt_h_GUID_C1AAF35C_C704_4DB7_14AC_615730C4619B
-
-/* IWYU pragma: begin_exports */
-
-#if !defined(_MSC_VER) || (defined(_MSC_VER) && _MSC_VER >= 1600)
-#include <stdint.h>
-#else
-#include "MSStdIntC.h"
-#endif
-
-/* IWYU pragma: end_exports */
-
-#endif
diff --git a/gfx/vr/osvr/Util/TimeValueC.h b/gfx/vr/osvr/Util/TimeValueC.h
deleted file mode 100644
index 7dcead654..000000000
--- a/gfx/vr/osvr/Util/TimeValueC.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/** @file
-    @brief Header defining a dependency-free, cross-platform substitute for
-   struct timeval
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_TimeValueC_h_GUID_A02C6917_124D_4CB3_E63E_07F2DA7144E9
-#define INCLUDED_TimeValueC_h_GUID_A02C6917_124D_4CB3_E63E_07F2DA7144E9
-
-/* Internal Includes */
-#include <osvr/Util/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/PlatformConfig.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/BoolC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @defgroup UtilTime Timestamp interaction
-    @ingroup Util
-
-    This provides a level of interoperability with struct timeval on systems
-    with that facility. It provides a neutral representation with sufficiently
-    large types.
-
-    For C++ code, use of std::chrono or boost::chrono instead is recommended.
-
-    Note that these time values may not necessarily correlate between processes
-   so should not be used to estimate or measure latency, etc.
-
-    @{
-*/
-
-/** @brief The signed integer type storing the seconds in a struct
-    OSVR_TimeValue */
-typedef int64_t OSVR_TimeValue_Seconds;
-/** @brief The signed integer type storing the microseconds in a struct
-    OSVR_TimeValue */
-typedef int32_t OSVR_TimeValue_Microseconds;
-
-/** @brief Standardized, portable parallel to struct timeval for representing
-   both absolute times and time intervals.
-
-   Where interpreted as an absolute time, its meaning is to be considered the
-   same as that of the POSIX struct timeval:
-   time since 00:00 Coordinated Universal Time (UTC), January 1, 1970.
-
-   For best results, please keep normalized. Output of all functions here
-   is normalized.
-   */
-typedef struct OSVR_TimeValue {
-    /** @brief Seconds portion of the time value. */
-    OSVR_TimeValue_Seconds seconds;
-    /** @brief Microseconds portion of the time value. */
-    OSVR_TimeValue_Microseconds microseconds;
-} OSVR_TimeValue;
-
-#ifdef OSVR_HAVE_STRUCT_TIMEVAL
-/** @brief Gets the current time in the TimeValue. Parallel to gettimeofday. */
-OSVR_UTIL_EXPORT void osvrTimeValueGetNow(OSVR_OUT OSVR_TimeValue *dest)
-    OSVR_FUNC_NONNULL((1));
-
-struct timeval; /* forward declaration */
-
-/** @brief Converts from a TimeValue struct to your system's struct timeval.
-
-    @param dest Pointer to an empty struct timeval for your platform.
-    @param src A pointer to an OSVR_TimeValue you'd like to convert from.
-
-    If either parameter is NULL, the function will return without doing
-   anything.
-*/
-OSVR_UTIL_EXPORT void
-osvrTimeValueToStructTimeval(OSVR_OUT struct timeval *dest,
-                             OSVR_IN_PTR const OSVR_TimeValue *src)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief Converts from a TimeValue struct to your system's struct timeval.
-    @param dest An OSVR_TimeValue destination pointer.
-    @param src Pointer to a struct timeval you'd like to convert from.
-
-    The result is normalized.
-
-    If either parameter is NULL, the function will return without doing
-   anything.
-*/
-OSVR_UTIL_EXPORT void
-osvrStructTimevalToTimeValue(OSVR_OUT OSVR_TimeValue *dest,
-                             OSVR_IN_PTR const struct timeval *src)
-    OSVR_FUNC_NONNULL((1, 2));
-#endif
-
-/** @brief "Normalizes" a time value so that the absolute number of microseconds
-    is less than 1,000,000, and that the sign of both components is the same.
-
-    @param tv Address of a struct TimeValue to normalize in place.
-
-    If the given pointer is NULL, this function returns without doing anything.
-*/
-OSVR_UTIL_EXPORT void osvrTimeValueNormalize(OSVR_INOUT_PTR OSVR_TimeValue *tv)
-    OSVR_FUNC_NONNULL((1));
-
-/** @brief Sums two time values, replacing the first with the result.
-
-    @param tvA Destination and first source.
-    @param tvB second source
-
-    If a given pointer is NULL, this function returns without doing anything.
-
-    Both parameters are expected to be in normalized form.
-*/
-OSVR_UTIL_EXPORT void osvrTimeValueSum(OSVR_INOUT_PTR OSVR_TimeValue *tvA,
-                                       OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief Computes the difference between two time values, replacing the first
-    with the result.
-
-    Effectively, `*tvA = *tvA - *tvB`
-
-    @param tvA Destination and first source.
-    @param tvB second source
-
-    If a given pointer is NULL, this function returns without doing anything.
-
-    Both parameters are expected to be in normalized form.
-*/
-OSVR_UTIL_EXPORT void
-osvrTimeValueDifference(OSVR_INOUT_PTR OSVR_TimeValue *tvA,
-                        OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief  Compares two time values (assumed to be normalized), returning
-    the same values as strcmp
-
-    @return <0 if A is earlier than B, 0 if they are the same, and >0 if A
-    is later than B.
-*/
-OSVR_UTIL_EXPORT int osvrTimeValueCmp(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                                      OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-OSVR_EXTERN_C_END
-
-/** @brief Compute the difference between the two time values, returning the
-    duration as a double-precision floating-point number of seconds.
-
-    Effectively, `ret = *tvA - *tvB`
-
-    @param tvA first source.
-    @param tvB second source
-    @return Duration of timespan in seconds (floating-point)
-*/
-OSVR_INLINE double
-osvrTimeValueDurationSeconds(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                             OSVR_IN_PTR const OSVR_TimeValue *tvB) {
-    OSVR_TimeValue A = *tvA;
-    osvrTimeValueDifference(&A, tvB);
-    double dt = A.seconds + A.microseconds / 1000000.0;
-    return dt;
-}
-
-/** @brief True if A is later than B */
-OSVR_INLINE OSVR_CBool
-osvrTimeValueGreater(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                     OSVR_IN_PTR const OSVR_TimeValue *tvB) {
-    if (!tvA || !tvB) {
-        return OSVR_FALSE;
-    }
-    return ((tvA->seconds > tvB->seconds) ||
-            (tvA->seconds == tvB->seconds &&
-             tvA->microseconds > tvB->microseconds))
-               ? OSVR_TRUE
-               : OSVR_FALSE;
-}
-
-#ifdef __cplusplus
-
-#include <cmath>
-#include <cassert>
-
-/// Returns true if the time value is normalized. Typically used in assertions.
-inline bool osvrTimeValueIsNormalized(const OSVR_TimeValue &tv) {
-#ifdef __APPLE__
-    // apparently standard library used on mac only has floating-point abs?
-    return std::abs(double(tv.microseconds)) < 1000000 &&
-#else
-    return std::abs(tv.microseconds) < 1000000 &&
-#endif
-           ((tv.seconds > 0) == (tv.microseconds > 0));
-}
-
-/// True if A is later than B
-inline bool osvrTimeValueGreater(const OSVR_TimeValue &tvA,
-                                 const OSVR_TimeValue &tvB) {
-    assert(osvrTimeValueIsNormalized(tvA) &&
-           "First timevalue argument to comparison was not normalized!");
-    assert(osvrTimeValueIsNormalized(tvB) &&
-           "Second timevalue argument to comparison was not normalized!");
-    return (tvA.seconds > tvB.seconds) ||
-           (tvA.seconds == tvB.seconds && tvA.microseconds > tvB.microseconds);
-}
-
-/// Operator > overload for time values
-inline bool operator>(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    return osvrTimeValueGreater(tvA, tvB);
-}
-
-/// Operator < overload for time values
-inline bool operator<(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    // Change the order of arguments before forwarding.
-    return osvrTimeValueGreater(tvB, tvA);
-}
-
-/// Operator == overload for time values
-inline bool operator==(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    assert(
-        osvrTimeValueIsNormalized(tvA) &&
-        "First timevalue argument to equality comparison was not normalized!");
-    assert(
-        osvrTimeValueIsNormalized(tvB) &&
-        "Second timevalue argument to equality comparison was not normalized!");
-    return (tvA.seconds == tvB.seconds) &&
-           (tvA.microseconds == tvB.microseconds);
-}
-/// Operator == overload for time values
-inline bool operator!=(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    assert(osvrTimeValueIsNormalized(tvA) && "First timevalue argument to "
-                                             "inequality comparison was not "
-                                             "normalized!");
-    assert(osvrTimeValueIsNormalized(tvB) && "Second timevalue argument to "
-                                             "inequality comparison was not "
-                                             "normalized!");
-    return (tvA.seconds != tvB.seconds) ||
-           (tvA.microseconds != tvB.microseconds);
-}
-#endif
-
-/** @} */
-
-#endif
diff --git a/gfx/vr/osvr/Util/Vec2C.h b/gfx/vr/osvr/Util/Vec2C.h
deleted file mode 100644
index 0432a32e7..000000000
--- a/gfx/vr/osvr/Util/Vec2C.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
-#define INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a 2D vector, which represents position
-*/
-typedef struct OSVR_Vec2 {
-    /** @brief Internal array data. */
-    double data[2];
-} OSVR_Vec2;
-
-#define OSVR_VEC_MEMBER(COMPONENT, INDEX)                                      \
-    /** @brief Accessor for Vec2 component COMPONENT */                        \
-    OSVR_INLINE double osvrVec2Get##COMPONENT(OSVR_Vec2 const *v) {            \
-        return v->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for Vec2 component COMPONENT */                          \
-    OSVR_INLINE void osvrVec2Set##COMPONENT(OSVR_Vec2 *v, double val) {        \
-        v->data[INDEX] = val;                                                  \
-    }
-
-OSVR_VEC_MEMBER(X, 0)
-OSVR_VEC_MEMBER(Y, 1)
-
-#undef OSVR_VEC_MEMBER
-
-/** @brief Set a Vec2 to the zero vector */
-OSVR_INLINE void osvrVec2Zero(OSVR_Vec2 *v) {
-    osvrVec2SetX(v, 0);
-    osvrVec2SetY(v, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Vec2 const &vec) {
-    os << "(" << vec.data[0] << ", " << vec.data[1] << ")";
-    return os;
-}
-#endif
-
-#endif // INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
diff --git a/gfx/vr/osvr/Util/Vec3C.h b/gfx/vr/osvr/Util/Vec3C.h
deleted file mode 100644
index 666861174..000000000
--- a/gfx/vr/osvr/Util/Vec3C.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
-
-#ifndef INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE
-#define INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a 3D vector, often a position/translation.
-*/
-typedef struct OSVR_Vec3 {
-    /** @brief Internal array data. */
-    double data[3];
-} OSVR_Vec3;
-
-#define OSVR_VEC_MEMBER(COMPONENT, INDEX)                                      \
-    /** @brief Accessor for Vec3 component COMPONENT */                        \
-    OSVR_INLINE double osvrVec3Get##COMPONENT(OSVR_Vec3 const *v) {            \
-        return v->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for Vec3 component COMPONENT */                          \
-    OSVR_INLINE void osvrVec3Set##COMPONENT(OSVR_Vec3 *v, double val) {        \
-        v->data[INDEX] = val;                                                  \
-    }
-
-OSVR_VEC_MEMBER(X, 0)
-OSVR_VEC_MEMBER(Y, 1)
-OSVR_VEC_MEMBER(Z, 2)
-
-#undef OSVR_VEC_MEMBER
-
-/** @brief Set a Vec3 to the zero vector */
-OSVR_INLINE void osvrVec3Zero(OSVR_Vec3 *v) {
-    osvrVec3SetX(v, 0);
-    osvrVec3SetY(v, 0);
-    osvrVec3SetZ(v, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Vec3 const &vec) {
-    os << "(" << vec.data[0] << ", " << vec.data[1] << ", " << vec.data[2]
-       << ")";
-    return os;
-}
-#endif
-
-#endif
diff --git a/gfx/vr/ovr_capi_dynamic.h b/gfx/vr/ovr_capi_dynamic.h
deleted file mode 100644
index 41e313dca..000000000
--- a/gfx/vr/ovr_capi_dynamic.h
+++ /dev/null
@@ -1,676 +0,0 @@
-/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/* This file contains just the needed struct definitions for
- * interacting with the Oculus VR C API, without needing to #include
- * OVR_CAPI.h directly.  Note that it uses the same type names as the
- * CAPI, and cannot be #included at the same time as OVR_CAPI.h.  It
- * does not include the entire C API, just want's needed.
- */
-
-#ifdef OVR_CAPI_h
-#ifdef _MSC_VER
-#pragma message("ovr_capi_dyanmic.h: OVR_CAPI.h included before ovr_capi_dynamic.h, skipping this")
-#else
-#warning OVR_CAPI.h included before ovr_capi_dynamic.h, skipping this
-#endif
-#define mozilla_ovr_capi_dynamic_h_
-
-#else
-
-#ifndef mozilla_ovr_capi_dynamic_h_
-#define mozilla_ovr_capi_dynamic_h_
-
-#define OVR_CAPI_LIMITED_MOZILLA 1
-
-#ifdef HAVE_64BIT_BUILD
-#define OVR_PTR_SIZE 8
-#define OVR_ON64(x)     x
-#else
-#define OVR_PTR_SIZE 4
-#define OVR_ON64(x)     /**/
-#endif
-
-#if defined(_WIN32)
-#define OVR_PFN __cdecl
-#else
-#define OVR_PFN
-#endif
-
-#if !defined(OVR_ALIGNAS)
-#if defined(__GNUC__) || defined(__clang__)
-#define OVR_ALIGNAS(n) __attribute__((aligned(n)))
-#elif defined(_MSC_VER) || defined(__INTEL_COMPILER)
-#define OVR_ALIGNAS(n) __declspec(align(n))
-#elif defined(__CC_ARM)
-#define OVR_ALIGNAS(n) __align(n)
-#else
-#error Need to define OVR_ALIGNAS
-#endif
-#endif
-
-#if !defined(OVR_UNUSED_STRUCT_PAD)
-#define OVR_UNUSED_STRUCT_PAD(padName, size) char padName[size];
-#endif
-
-#ifdef __cplusplus 
-extern "C" {
-#endif
-
-typedef int32_t ovrResult;
-
-typedef enum {
-  ovrSuccess = 0,
-  ovrSuccess_NotVisible = 1000,
-  ovrSuccess_HMDFirmwareMismatch = 4100,
-  ovrSuccess_TrackerFirmwareMismatch = 4101,
-  ovrSuccess_ControllerFirmwareMismatch = 4104,
-} ovrSuccessType;
-
-typedef char ovrBool;
-typedef struct OVR_ALIGNAS(4) { int x, y; } ovrVector2i;
-typedef struct OVR_ALIGNAS(4) { int w, h; } ovrSizei;
-typedef struct OVR_ALIGNAS(4) { ovrVector2i Pos; ovrSizei Size; } ovrRecti;
-typedef struct OVR_ALIGNAS(4) { float x, y, z, w; } ovrQuatf;
-typedef struct OVR_ALIGNAS(4) { float x, y; } ovrVector2f;
-typedef struct OVR_ALIGNAS(4) { float x, y, z; } ovrVector3f;
-typedef struct OVR_ALIGNAS(4) { float M[4][4]; } ovrMatrix4f;
-
-typedef struct OVR_ALIGNAS(4) {
-  ovrQuatf Orientation;
-  ovrVector3f Position;
-} ovrPosef;
-
-typedef struct OVR_ALIGNAS(8) {
-  ovrPosef ThePose;
-  ovrVector3f AngularVelocity;
-  ovrVector3f LinearVelocity;
-  ovrVector3f AngularAcceleration;
-  ovrVector3f LinearAcceleration;
-  OVR_UNUSED_STRUCT_PAD(pad0, 4)
-  double      TimeInSeconds;
-} ovrPoseStatef;
-
-typedef struct {
-  float UpTan;
-  float DownTan;
-  float LeftTan;
-  float RightTan;
-} ovrFovPort;
-
-typedef enum {
-  ovrHmd_None      = 0,    
-  ovrHmd_DK1       = 3,
-  ovrHmd_DKHD      = 4,
-  ovrHmd_DK2       = 6,
-  ovrHmd_CB        = 8,
-  ovrHmd_Other     = 9,
-  ovrHmd_E3_2015   = 10,
-  ovrHmd_ES06      = 11,
-  ovrHmd_ES09      = 12,
-  ovrHmd_ES11      = 13,
-  ovrHmd_CV1       = 14,
-  ovrHmd_EnumSize = 0x7fffffff
-} ovrHmdType;
-
-typedef enum {
-  ovrHmdCap_DebugDevice       = 0x0010,
-  ovrHmdCap_EnumSize          = 0x7fffffff
-} ovrHmdCaps;
-
-typedef enum
-{
-  ovrTrackingCap_Orientation      = 0x0010,
-  ovrTrackingCap_MagYawCorrection = 0x0020,
-  ovrTrackingCap_Position         = 0x0040,
-  ovrTrackingCap_EnumSize         = 0x7fffffff
-} ovrTrackingCaps;
-
-typedef enum {
-  ovrEye_Left  = 0,
-  ovrEye_Right = 1,
-  ovrEye_Count = 2,
-  ovrEye_EnumSize = 0x7fffffff
-} ovrEyeType;
-
-typedef enum {
-  ovrTrackingOrigin_EyeLevel = 0,
-  ovrTrackingOrigin_FloorLevel = 1,
-  ovrTrackingOrigin_Count = 2,            ///< \internal Count of enumerated elements.
-  ovrTrackingOrigin_EnumSize = 0x7fffffff ///< \internal Force type int32_t.
-} ovrTrackingOrigin;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-	char Reserved[8];
-} ovrGraphicsLuid;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  ovrHmdType  Type;
-  OVR_ON64(OVR_UNUSED_STRUCT_PAD(pad0, 4))
-  char ProductName[64];
-  char Manufacturer[64];
-  short VendorId;
-  short ProductId;
-  char SerialNumber[24];
-  short FirmwareMajor;
-  short FirmwareMinor;
-  unsigned int AvailableHmdCaps;
-  unsigned int DefaultHmdCaps;
-  unsigned int AvailableTrackingCaps;
-  unsigned int DefaultTrackingCaps;
-  ovrFovPort DefaultEyeFov[ovrEye_Count];
-  ovrFovPort MaxEyeFov[ovrEye_Count];
-  ovrSizei Resolution;
-  float DisplayRefreshRate;
-  OVR_ON64(OVR_UNUSED_STRUCT_PAD(pad1, 4))
-} ovrHmdDesc;
-
-typedef struct ovrHmdStruct* ovrSession;
-
-typedef enum {
-  ovrStatus_OrientationTracked    = 0x0001,
-  ovrStatus_PositionTracked       = 0x0002,
-  ovrStatus_EnumSize              = 0x7fffffff
-} ovrStatusBits;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  float FrustumHFovInRadians;
-  float FrustumVFovInRadians;
-  float FrustumNearZInMeters;
-  float FrustumFarZInMeters;
-} ovrTrackerDesc;
-
-typedef enum {
-  ovrTracker_Connected = 0x0020,
-  ovrTracker_PoseTracked = 0x0004
-} ovrTrackerFlags;
-
-typedef struct OVR_ALIGNAS(8) {
-  unsigned int TrackerFlags;
-  ovrPosef Pose;
-  ovrPosef LeveledPose;
-  OVR_UNUSED_STRUCT_PAD(pad0, 4)
-} ovrTrackerPose;
-
-typedef struct OVR_ALIGNAS(8) {
-  ovrPoseStatef HeadPose;
-  unsigned int StatusFlags;
-  ovrPoseStatef HandPoses[2];
-  unsigned int HandStatusFlags[2];
-  ovrPosef CalibratedOrigin;
-} ovrTrackingState;
-
-typedef struct OVR_ALIGNAS(4) {
-  ovrEyeType  Eye;
-  ovrFovPort  Fov;
-  ovrRecti    DistortedViewport;
-  ovrVector2f PixelsPerTanAngleAtCenter;
-  ovrVector3f HmdToEyeOffset;
-} ovrEyeRenderDesc;
-
-typedef struct OVR_ALIGNAS(4) {
-  float Projection22;
-  float Projection23;
-  float Projection32;
-} ovrTimewarpProjectionDesc;
-
-typedef struct OVR_ALIGNAS(4) {
-  ovrVector3f HmdToEyeViewOffset[ovrEye_Count];
-  float HmdSpaceToWorldScaleInMeters;
-} ovrViewScaleDesc;
-
-typedef enum {
-  ovrTexture_2D,
-  ovrTexture_2D_External,
-  ovrTexture_Cube,
-  ovrTexture_Count,
-  ovrTexture_EnumSize = 0x7fffffff
-} ovrTextureType;
-
-typedef enum {
-  ovrTextureBind_None,
-  ovrTextureBind_DX_RenderTarget = 0x0001,
-  ovrTextureBind_DX_UnorderedAccess = 0x0002,
-  ovrTextureBind_DX_DepthStencil = 0x0004,
-  ovrTextureBind_EnumSize = 0x7fffffff
-} ovrTextureBindFlags;
-
-typedef enum {
-  OVR_FORMAT_UNKNOWN,
-  OVR_FORMAT_B5G6R5_UNORM,
-  OVR_FORMAT_B5G5R5A1_UNORM,
-  OVR_FORMAT_B4G4R4A4_UNORM,
-  OVR_FORMAT_R8G8B8A8_UNORM,
-  OVR_FORMAT_R8G8B8A8_UNORM_SRGB,
-  OVR_FORMAT_B8G8R8A8_UNORM,
-  OVR_FORMAT_B8G8R8A8_UNORM_SRGB,
-  OVR_FORMAT_B8G8R8X8_UNORM,
-  OVR_FORMAT_B8G8R8X8_UNORM_SRGB,
-  OVR_FORMAT_R16G16B16A16_FLOAT,
-  OVR_FORMAT_D16_UNORM,
-  OVR_FORMAT_D24_UNORM_S8_UINT,
-  OVR_FORMAT_D32_FLOAT,
-  OVR_FORMAT_D32_FLOAT_S8X24_UINT,
-  OVR_FORMAT_ENUMSIZE = 0x7fffffff
-} ovrTextureFormat;
-
-typedef enum {
-  ovrTextureMisc_None,
-  ovrTextureMisc_DX_Typeless = 0x0001,
-  ovrTextureMisc_AllowGenerateMips = 0x0002,
-  ovrTextureMisc_EnumSize = 0x7fffffff
-} ovrTextureFlags;
-
-typedef struct {
-  ovrTextureType Type;
-  ovrTextureFormat Format;
-  int ArraySize;
-  int Width;
-  int Height;
-  int MipLevels;
-  int SampleCount;
-  ovrBool StaticImage;
-  unsigned int MiscFlags;
-  unsigned int BindFlags;
-} ovrTextureSwapChainDesc;
-
-typedef struct
-{
-  ovrTextureFormat Format;
-  int Width;
-  int Height;
-  unsigned int MiscFlags;
-} ovrMirrorTextureDesc;
-
-typedef void* ovrTextureSwapChain;
-typedef struct ovrMirrorTextureData* ovrMirrorTexture;
-
-
-
-typedef enum {
-  ovrButton_A = 0x00000001,
-  ovrButton_B = 0x00000002,
-  ovrButton_RThumb = 0x00000004,
-  ovrButton_RShoulder = 0x00000008,
-  ovrButton_RMask = ovrButton_A | ovrButton_B | ovrButton_RThumb | ovrButton_RShoulder,
-  ovrButton_X = 0x00000100,
-  ovrButton_Y = 0x00000200,
-  ovrButton_LThumb = 0x00000400,
-  ovrButton_LShoulder = 0x00000800,
-  ovrButton_LMask = ovrButton_X | ovrButton_Y | ovrButton_LThumb | ovrButton_LShoulder,
-  ovrButton_Up = 0x00010000,
-  ovrButton_Down = 0x00020000,
-  ovrButton_Left = 0x00040000,
-  ovrButton_Right = 0x00080000,
-  ovrButton_Enter = 0x00100000,
-  ovrButton_Back = 0x00200000,
-  ovrButton_VolUp = 0x00400000,
-  ovrButton_VolDown = 0x00800000,
-  ovrButton_Home = 0x01000000,
-  ovrButton_Private = ovrButton_VolUp | ovrButton_VolDown | ovrButton_Home,
-  ovrButton_EnumSize = 0x7fffffff
-} ovrButton;
-
-typedef enum {
-  ovrTouch_A = ovrButton_A,
-  ovrTouch_B = ovrButton_B,
-  ovrTouch_RThumb = ovrButton_RThumb,
-  ovrTouch_RIndexTrigger = 0x00000010,
-  ovrTouch_RButtonMask = ovrTouch_A | ovrTouch_B | ovrTouch_RThumb | ovrTouch_RIndexTrigger,
-  ovrTouch_X = ovrButton_X,
-  ovrTouch_Y = ovrButton_Y,
-  ovrTouch_LThumb = ovrButton_LThumb,
-  ovrTouch_LIndexTrigger = 0x00001000,
-  ovrTouch_LButtonMask = ovrTouch_X | ovrTouch_Y | ovrTouch_LThumb | ovrTouch_LIndexTrigger,
-  ovrTouch_RIndexPointing = 0x00000020,
-  ovrTouch_RThumbUp = 0x00000040,
-  ovrTouch_RPoseMask = ovrTouch_RIndexPointing | ovrTouch_RThumbUp,
-  ovrTouch_LIndexPointing = 0x00002000,
-  ovrTouch_LThumbUp = 0x00004000,
-  ovrTouch_LPoseMask = ovrTouch_LIndexPointing | ovrTouch_LThumbUp,
-  ovrTouch_EnumSize = 0x7fffffff
-} ovrTouch;
-
-typedef enum {
-  ovrControllerType_None = 0x00,
-  ovrControllerType_LTouch = 0x01,
-  ovrControllerType_RTouch = 0x02,
-  ovrControllerType_Touch = 0x03,
-  ovrControllerType_Remote = 0x04,
-  ovrControllerType_XBox = 0x10,
-  ovrControllerType_Active = 0xff,
-  ovrControllerType_EnumSize = 0x7fffffff
-} ovrControllerType;
-
-typedef enum {
-  ovrHand_Left = 0,
-  ovrHand_Right = 1,
-  ovrHand_Count = 2,
-  ovrHand_EnumSize = 0x7fffffff
-} ovrHandType;
-
-typedef struct {
-  double TimeInSeconds;
-  unsigned int Buttons;
-  unsigned int Touches;
-  float IndexTrigger[ovrHand_Count];
-  float HandTrigger[ovrHand_Count];
-  ovrVector2f Thumbstick[ovrHand_Count];
-  ovrControllerType ControllerType;
-} ovrInputState;
-
-typedef enum {
-  ovrInit_Debug          = 0x00000001,
-  ovrInit_RequestVersion = 0x00000004,
-  ovrinit_WritableBits   = 0x00ffffff,
-  ovrInit_EnumSize       = 0x7fffffff
-} ovrInitFlags;
-
-typedef enum {
-  ovrLogLevel_Debug = 0,
-  ovrLogLevel_Info  = 1,
-  ovrLogLevel_Error = 2,
-  ovrLogLevel_EnumSize = 0x7fffffff
-} ovrLogLevel;
-
-typedef void (OVR_PFN* ovrLogCallback)(uintptr_t userData, int level, const char* message);
-
-typedef struct OVR_ALIGNAS(8) {
-  uint32_t Flags;
-  uint32_t RequestedMinorVersion;
-  ovrLogCallback LogCallback;
-  uintptr_t UserData;
-  uint32_t ConnectionTimeoutMS;
-  OVR_ON64(OVR_UNUSED_STRUCT_PAD(pad0, 4))
-} ovrInitParams;
-
-typedef ovrResult(OVR_PFN* pfn_ovr_Initialize)(const ovrInitParams* params);
-typedef void (OVR_PFN* pfn_ovr_Shutdown)();
-
-typedef struct {
-  ovrResult Result;
-  char      ErrorString[512];
-} ovrErrorInfo;
-
-typedef void (OVR_PFN* pfn_ovr_GetLastErrorInfo)(ovrErrorInfo* errorInfo);
-typedef const char* (OVR_PFN* pfn_ovr_GetVersionString)();
-typedef int (OVR_PFN* pfn_ovr_TraceMessage)(int level, const char* message);
-typedef ovrHmdDesc (OVR_PFN* pfn_ovr_GetHmdDesc)(ovrSession session);
-typedef unsigned int (OVR_PFN* pfn_ovr_GetTrackerCount)(ovrSession session);
-typedef ovrTrackerDesc* (OVR_PFN* pfn_ovr_GetTrackerDesc)(ovrSession session, unsigned int trackerDescIndex);
-typedef ovrResult (OVR_PFN* pfn_ovr_Create)(ovrSession* pSession, ovrGraphicsLuid* pLuid);
-typedef void (OVR_PFN* pfn_ovr_Destroy)(ovrSession session);
-
-typedef struct {
-  ovrBool IsVisible;
-  ovrBool HmdPresent;
-  ovrBool HmdMounted;
-  ovrBool DisplayLost;
-  ovrBool ShouldQuit;
-  ovrBool ShouldRecenter;
-} ovrSessionStatus;
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetSessionStatus)(ovrSession session, ovrSessionStatus* sessionStatus);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_SetTrackingOriginType)(ovrSession session, ovrTrackingOrigin origin);
-typedef ovrTrackingOrigin (OVR_PFN* pfn_ovr_GetTrackingOriginType)(ovrSession session);
-typedef ovrResult (OVR_PFN* pfn_ovr_RecenterTrackingOrigin)(ovrSession session);
-typedef void (OVR_PFN* pfn_ovr_ClearShouldRecenterFlag)(ovrSession session);
-typedef ovrTrackingState (OVR_PFN* pfn_ovr_GetTrackingState)(ovrSession session, double absTime, ovrBool latencyMarker);
-typedef ovrTrackerPose (OVR_PFN* pfn_ovr_GetTrackerPose)(ovrSession session, unsigned int trackerPoseIndex);
-typedef ovrResult (OVR_PFN* pfn_ovr_GetInputState)(ovrSession session, ovrControllerType controllerType, ovrInputState* inputState);
-typedef unsigned int (OVR_PFN* pfn_ovr_GetConnectedControllerTypes)(ovrSession session);
-typedef ovrResult (OVR_PFN* pfn_ovr_SetControllerVibration)(ovrSession session, ovrControllerType controllerType, float frequency, float amplitude);
-
-enum {
-  ovrMaxLayerCount = 16
-};
-
-typedef enum {
-  ovrLayerType_Disabled       = 0,
-  ovrLayerType_EyeFov         = 1,
-  ovrLayerType_Quad           = 3,
-  ovrLayerType_EyeMatrix      = 5,
-  ovrLayerType_EnumSize       = 0x7fffffff
-} ovrLayerType;
-
-typedef enum {
-  ovrLayerFlag_HighQuality               = 0x01,
-  ovrLayerFlag_TextureOriginAtBottomLeft = 0x02,
-  ovrLayerFlag_HeadLocked                = 0x04
-} ovrLayerFlags;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  ovrLayerType Type;
-  unsigned Flags;
-} ovrLayerHeader;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  ovrLayerHeader Header;
-  ovrTextureSwapChain ColorTexture[ovrEye_Count];
-  ovrRecti Viewport[ovrEye_Count];
-  ovrFovPort Fov[ovrEye_Count];
-  ovrPosef RenderPose[ovrEye_Count];
-  double SensorSampleTime;
-} ovrLayerEyeFov;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  ovrLayerHeader Header;
-  ovrTextureSwapChain ColorTexture[ovrEye_Count];
-  ovrRecti Viewport[ovrEye_Count];
-  ovrPosef RenderPose[ovrEye_Count];
-  ovrMatrix4f Matrix[ovrEye_Count];
-  double SensorSampleTime;
-} ovrLayerEyeMatrix;
-
-typedef struct OVR_ALIGNAS(OVR_PTR_SIZE) {
-  ovrLayerHeader Header;
-  ovrTextureSwapChain ColorTexture;
-  ovrRecti Viewport;
-  ovrPosef QuadPoseCenter;
-  ovrVector2f QuadSize;
-} ovrLayerQuad;
-
-typedef union {
-  ovrLayerHeader Header;
-  ovrLayerEyeFov EyeFov;
-  ovrLayerQuad Quad;
-} ovrLayer_Union;
-
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetTextureSwapChainLength)(ovrSession session, ovrTextureSwapChain chain, int* out_Length);
-typedef ovrResult (OVR_PFN* pfn_ovr_GetTextureSwapChainCurrentIndex)(ovrSession session, ovrTextureSwapChain chain, int* out_Index);
-typedef ovrResult (OVR_PFN* pfn_ovr_GetTextureSwapChainDesc)(ovrSession session, ovrTextureSwapChain chain, ovrTextureSwapChainDesc* out_Desc);
-typedef ovrResult (OVR_PFN* pfn_ovr_CommitTextureSwapChain)(ovrSession session, ovrTextureSwapChain chain);
-typedef void (OVR_PFN* pfn_ovr_DestroyTextureSwapChain)(ovrSession session, ovrTextureSwapChain chain);
-typedef void (OVR_PFN* pfn_ovr_DestroyMirrorTexture)(ovrSession session, ovrMirrorTexture mirrorTexture);
-typedef ovrSizei(OVR_PFN* pfn_ovr_GetFovTextureSize)(ovrSession session, ovrEyeType eye, ovrFovPort fov, float pixelsPerDisplayPixel);
-typedef ovrEyeRenderDesc(OVR_PFN* pfn_ovr_GetRenderDesc)(ovrSession session, ovrEyeType eyeType, ovrFovPort fov);
-typedef ovrResult(OVR_PFN* pfn_ovr_SubmitFrame)(ovrSession session, unsigned int frameIndex,
-	const ovrViewScaleDesc* viewScaleDesc,
-	ovrLayerHeader const * const * layerPtrList, unsigned int layerCount);
-typedef double (OVR_PFN* pfn_ovr_GetPredictedDisplayTime)(ovrSession session, long long frameIndex);
-typedef double (OVR_PFN* pfn_ovr_GetTimeInSeconds)();
-
-
-typedef enum {
-  ovrPerfHud_Off = 0,
-  ovrPerfHud_PerfSummary = 1,
-  ovrPerfHud_LatencyTiming = 2,
-  ovrPerfHud_AppRenderTiming = 3,
-  ovrPerfHud_CompRenderTiming = 4,
-  ovrPerfHud_VersionInfo = 5,
-  ovrPerfHud_Count = 6,
-  ovrPerfHud_EnumSize = 0x7fffffff
-} ovrPerfHudMode;
-
-typedef enum {
-  ovrLayerHud_Off = 0,
-  ovrLayerHud_Info = 1,
-  ovrLayerHud_EnumSize = 0x7fffffff
-} ovrLayerHudMode;
-
-typedef enum {
-  ovrDebugHudStereo_Off = 0,
-  ovrDebugHudStereo_Quad = 1,
-  ovrDebugHudStereo_QuadWithCrosshair = 2,
-  ovrDebugHudStereo_CrosshairAtInfinity = 3,
-  ovrDebugHudStereo_Count,
-  ovrDebugHudStereo_EnumSize = 0x7fffffff
-} ovrDebugHudStereoMode;
-
-typedef ovrBool(OVR_PFN* pfn_ovr_GetBool)(ovrSession session, const char* propertyName, ovrBool defaultVal);
-typedef ovrBool(OVR_PFN* pfn_ovr_SetBool)(ovrSession session, const char* propertyName, ovrBool value); 
-typedef int (OVR_PFN* pfn_ovr_GetInt)(ovrSession session, const char* propertyName, int defaultVal);
-typedef ovrBool (OVR_PFN* pfn_ovr_SetInt)(ovrSession session, const char* propertyName, int value);
-typedef float (OVR_PFN* pfn_ovr_GetFloat)(ovrSession session, const char* propertyName, float defaultVal);
-typedef ovrBool (OVR_PFN* pfn_ovr_SetFloat)(ovrSession session, const char* propertyName, float value);
-typedef unsigned int (OVR_PFN* pfn_ovr_GetFloatArray)(ovrSession session, const char* propertyName,
-  float values[], unsigned int valuesCapacity);
-typedef ovrBool (OVR_PFN* pfn_ovr_SetFloatArray)(ovrSession session, const char* propertyName,
-  const float values[], unsigned int valuesSize);
-typedef const char* (OVR_PFN* pfn_ovr_GetString)(ovrSession session, const char* propertyName,
-  const char* defaultVal);
-typedef ovrBool (OVR_PFN* pfn_ovr_SetString)(ovrSession session, const char* propertyName,
-  const char* value);
-
-
-
-typedef enum {
-  ovrError_MemoryAllocationFailure = -1000,
-  ovrError_SocketCreationFailure = -1001,
-  ovrError_InvalidSession = -1002,
-  ovrError_Timeout = -1003,
-  ovrError_NotInitialized = -1004,
-  ovrError_InvalidParameter = -1005,
-  ovrError_ServiceError = -1006,
-  ovrError_NoHmd = -1007,
-  ovrError_Unsupported = -1009,
-  ovrError_DeviceUnavailable = -1010,
-  ovrError_InvalidHeadsetOrientation = -1011,
-  ovrError_ClientSkippedDestroy = -1012,
-  ovrError_ClientSkippedShutdown = -1013,
-  ovrError_AudioReservedBegin = -2000,
-  ovrError_AudioDeviceNotFound = -2001,
-  ovrError_AudioComError = -2002,
-  ovrError_AudioReservedEnd = -2999,
-  ovrError_Initialize = -3000,
-  ovrError_LibLoad = -3001,
-  ovrError_LibVersion = -3002,
-  ovrError_ServiceConnection = -3003,
-  ovrError_ServiceVersion = -3004,
-  ovrError_IncompatibleOS = -3005,
-  ovrError_DisplayInit = -3006,
-  ovrError_ServerStart = -3007,
-  ovrError_Reinitialization = -3008,
-  ovrError_MismatchedAdapters = -3009,
-  ovrError_LeakingResources = -3010,
-  ovrError_ClientVersion = -3011,
-  ovrError_OutOfDateOS = -3012,
-  ovrError_OutOfDateGfxDriver = -3013,
-  ovrError_IncompatibleGPU = -3014,
-  ovrError_NoValidVRDisplaySystem = -3015,
-  ovrError_Obsolete = -3016,
-  ovrError_DisabledOrDefaultAdapter = -3017,
-  ovrError_HybridGraphicsNotSupported = -3018,
-  ovrError_DisplayManagerInit = -3019,
-  ovrError_TrackerDriverInit = -3020,
-  ovrError_InvalidBundleAdjustment = -4000,
-  ovrError_USBBandwidth = -4001,
-  ovrError_USBEnumeratedSpeed = -4002,
-  ovrError_ImageSensorCommError = -4003,
-  ovrError_GeneralTrackerFailure = -4004,
-  ovrError_ExcessiveFrameTruncation = -4005,
-  ovrError_ExcessiveFrameSkipping = -4006,
-  ovrError_SyncDisconnected = -4007,
-  ovrError_TrackerMemoryReadFailure = -4008,
-  ovrError_TrackerMemoryWriteFailure = -4009,
-  ovrError_TrackerFrameTimeout = -4010,
-  ovrError_TrackerTruncatedFrame = -4011,
-  ovrError_TrackerDriverFailure = -4012,
-  ovrError_TrackerNRFFailure = -4013,
-  ovrError_HardwareGone = -4014,
-  ovrError_NordicEnabledNoSync = -4015,
-  ovrError_NordicSyncNoFrames = -4016,
-  ovrError_CatastrophicFailure = -4017,
-  ovrError_HMDFirmwareMismatch = -4100,
-  ovrError_TrackerFirmwareMismatch = -4101,
-  ovrError_BootloaderDeviceDetected = -4102,
-  ovrError_TrackerCalibrationError = -4103,
-  ovrError_ControllerFirmwareMismatch = -4104,
-  ovrError_IMUTooManyLostSamples = -4200,
-  ovrError_IMURateError = -4201,
-  ovrError_FeatureReportFailure = -4202,
-  ovrError_Incomplete = -5000,
-  ovrError_Abandoned = -5001,
-  ovrError_DisplayLost = -6000,
-  ovrError_TextureSwapChainFull = -6001,
-  ovrError_TextureSwapChainInvalid = -6002,
-  ovrError_RuntimeException = -7000,
-  ovrError_MetricsUnknownApp = -90000,
-  ovrError_MetricsDuplicateApp = -90001,
-  ovrError_MetricsNoEvents = -90002,
-  ovrError_MetricsRuntime = -90003,
-  ovrError_MetricsFile = -90004,
-  ovrError_MetricsNoClientInfo = -90005,
-  ovrError_MetricsNoAppMetaData = -90006,
-  ovrError_MetricsNoApp = -90007,
-  ovrError_MetricsOafFailure = -90008,
-  ovrError_MetricsSessionAlreadyActive = -90009,
-  ovrError_MetricsSessionNotActive = -90010,
-} ovrErrorType;
-
-
-#ifdef XP_WIN
-
-struct IUnknown;
-
-typedef ovrResult (OVR_PFN* pfn_ovr_CreateTextureSwapChainDX)(ovrSession session,
-	IUnknown* d3dPtr,
-	const ovrTextureSwapChainDesc* desc,
-	ovrTextureSwapChain* out_TextureSwapChain);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetTextureSwapChainBufferDX)(ovrSession session,
-	ovrTextureSwapChain chain,
-	int index,
-	IID iid,
-	void** out_Buffer);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_CreateMirrorTextureDX)(ovrSession session,
-	IUnknown* d3dPtr,
-	const ovrMirrorTextureDesc* desc,
-	ovrMirrorTexture* out_MirrorTexture);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetMirrorTextureBufferDX)(ovrSession session,
-	ovrMirrorTexture mirrorTexture,
-	IID iid,
-	void** out_Buffer);
-
-#endif
-
-
-typedef ovrResult (OVR_PFN* pfn_ovr_CreateTextureSwapChainGL)(ovrSession session,
-	const ovrTextureSwapChainDesc* desc,
-	ovrTextureSwapChain* out_TextureSwapChain);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetTextureSwapChainBufferGL)(ovrSession session,
-	ovrTextureSwapChain chain,
-	int index,
-	unsigned int* out_TexId);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_CreateMirrorTextureGL)(ovrSession session,
-	const ovrMirrorTextureDesc* desc,
-	ovrMirrorTexture* out_MirrorTexture);
-
-typedef ovrResult (OVR_PFN* pfn_ovr_GetMirrorTextureBufferGL)(ovrSession session,
-	ovrMirrorTexture mirrorTexture,
-	unsigned int* out_TexId);
-
-#ifdef __cplusplus 
-}
-#endif
-
-#endif /* mozilla_ovr_capi_dynamic_h_ */
-#endif /* OVR_CAPI_h */
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index cae1d5890..3fce0f486 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -4898,30 +4898,6 @@ pref("dom.browserElement.maxScreenshotDelayMS", 2000);
 // Whether we should show the placeholder when the element is focused but empty.
 pref("dom.placeholder.show_on_focus", true);
 
-// VR is disabled by default in release and enabled for nightly and aurora
-#ifdef RELEASE_OR_BETA
-pref("dom.vr.enabled", false);
-#else
-pref("dom.vr.enabled", true);
-#endif
-pref("dom.vr.oculus.enabled", true);
-// OSVR device
-pref("dom.vr.osvr.enabled", false);
-// OpenVR device
-pref("dom.vr.openvr.enabled", false);
-// Pose prediction reduces latency effects by returning future predicted HMD
-// poses to callers of the WebVR API.  This currently only has an effect for
-// Oculus Rift on SDK 0.8 or greater.  It is disabled by default for now due to
-// frame uniformity issues with e10s.
-pref("dom.vr.poseprediction.enabled", false);
-// path to openvr DLL
-pref("gfx.vr.openvr-runtime", "");
-// path to OSVR DLLs
-pref("gfx.vr.osvr.utilLibPath", "");
-pref("gfx.vr.osvr.commonLibPath", "");
-pref("gfx.vr.osvr.clientLibPath", "");
-pref("gfx.vr.osvr.clientKitLibPath", "");
-
 // MMS UA Profile settings
 pref("wap.UAProf.url", "");
 pref("wap.UAProf.tagname", "x-wap-profile");
diff --git a/widget/nsBaseWidget.cpp b/widget/nsBaseWidget.cpp
index 909660f71..c6ec3a406 100644
--- a/widget/nsBaseWidget.cpp
+++ b/widget/nsBaseWidget.cpp
@@ -73,7 +73,6 @@
 #endif
 #include "gfxConfig.h"
 #include "mozilla/layers/CompositorSession.h"
-#include "VRManagerChild.h"
 
 #ifdef DEBUG
 #include "nsIObserver.h"
@@ -366,7 +365,6 @@ nsBaseWidget::OnRenderingDeviceReset()
   // Update the texture factory identifier.
   clm->UpdateTextureFactoryIdentifier(identifier);
   ImageBridgeChild::IdentifyCompositorTextureHost(identifier);
-  gfx::VRManagerChild::IdentifyTextureHost(identifier);
 }
 
 void
@@ -1377,7 +1375,6 @@ void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
     // compositors used with ImageBridge and VR (and more generally web content).
     if (WidgetTypeSupportsAcceleration()) {
       ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
-      gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
     }
   }