Remove MOZ_WIDGET_GONK [1/2]

Tag #288

53 files changed, 60 insertions, 750 deletions

diff --git a/config/system-headers b/config/system-headers
index be3162f58..683c9d337 100644
--- a/config/system-headers
+++ b/config/system-headers
@@ -391,9 +391,6 @@ DiskInit.h
 dlfcn.h
 dlgs.h
 dl.h
-#ifdef MOZ_WIDGET_GONK
-dns_sd.h
-#endif
 docobj.h
 dos/dosextens.h
 dos.h
diff --git a/dom/apps/AppsUtils.jsm b/dom/apps/AppsUtils.jsm
index 3ca3f8552..2bd6a4133 100644
--- a/dom/apps/AppsUtils.jsm
+++ b/dom/apps/AppsUtils.jsm
@@ -312,9 +312,6 @@ this.AppsUtils = {
     // Instead, we check if the app is installed under /system/b2g
     let isCoreApp = false;
 
-#ifdef MOZ_WIDGET_GONK
-    isCoreApp = app.basePath == this.getCoreAppsBasePath();
-#endif
     debug(app.basePath + " isCoreApp: " + isCoreApp);
 
     return { "path": app.basePath + "/" + app.id,
diff --git a/dom/audiochannel/AudioChannelService.cpp b/dom/audiochannel/AudioChannelService.cpp
index 87cde41e9..db6f2037b 100644
--- a/dom/audiochannel/AudioChannelService.cpp
+++ b/dom/audiochannel/AudioChannelService.cpp
@@ -27,11 +27,6 @@
 #include "nsServiceManagerUtils.h"
 #include "mozilla/dom/SettingChangeNotificationBinding.h"
 
-#ifdef MOZ_WIDGET_GONK
-#include "nsJSUtils.h"
-#include "SpeakerManagerService.h"
-#endif
-
 #include "mozilla/Preferences.h"
 
 using namespace mozilla;
@@ -237,20 +232,12 @@ AudioChannelService::Shutdown()
 
       if (IsParentProcess()) {
         obs->RemoveObserver(gAudioChannelService, "ipc:content-shutdown");
-
-#ifdef MOZ_WIDGET_GONK
-        // To monitor the volume settings based on audio channel.
-        obs->RemoveObserver(gAudioChannelService, "mozsettings-changed");
-#endif
       }
     }
 
     gAudioChannelService->mWindows.Clear();
     gAudioChannelService->mPlayingChildren.Clear();
     gAudioChannelService->mTabParents.Clear();
-#ifdef MOZ_WIDGET_GONK
-    gAudioChannelService->mSpeakerManager.Clear();
-#endif
 
     gAudioChannelService = nullptr;
   }
@@ -284,11 +271,6 @@ AudioChannelService::AudioChannelService()
     obs->AddObserver(this, "outer-window-destroyed", false);
     if (IsParentProcess()) {
       obs->AddObserver(this, "ipc:content-shutdown", false);
-
-#ifdef MOZ_WIDGET_GONK
-      // To monitor the volume settings based on audio channel.
-      obs->AddObserver(this, "mozsettings-changed", false);
-#endif
     }
   }
 
@@ -342,13 +324,6 @@ AudioChannelService::UnregisterAudioChannelAgent(AudioChannelAgent* aAgent)
   RefPtr<AudioChannelAgent> kungFuDeathGrip(aAgent);
   winData->RemoveAgent(aAgent);
 
-#ifdef MOZ_WIDGET_GONK
-  bool active = AnyAudioChannelIsActive();
-  for (uint32_t i = 0; i < mSpeakerManager.Length(); i++) {
-    mSpeakerManager[i]->SetAudioChannelActive(active);
-  }
-#endif
-
   MaybeSendStatusUpdate();
 }
 
@@ -573,13 +548,6 @@ AudioChannelService::Observe(nsISupports* aSubject, const char* aTopic,
         iter.GetNext()->WindowVolumeChanged();
       }
     }
-
-#ifdef MOZ_WIDGET_GONK
-    bool active = AnyAudioChannelIsActive();
-    for (uint32_t i = 0; i < mSpeakerManager.Length(); i++) {
-      mSpeakerManager[i]->SetAudioChannelActive(active);
-    }
-#endif
   } else if (!strcmp(aTopic, "ipc:content-shutdown")) {
     nsCOMPtr<nsIPropertyBag2> props = do_QueryInterface(aSubject);
     if (!props) {
diff --git a/dom/audiochannel/AudioChannelService.h b/dom/audiochannel/AudioChannelService.h
index b16832b5f..7d3de8a46 100644
--- a/dom/audiochannel/AudioChannelService.h
+++ b/dom/audiochannel/AudioChannelService.h
@@ -25,10 +25,6 @@ struct PRLogModuleInfo;
 namespace mozilla {
 namespace dom {
 
-#ifdef MOZ_WIDGET_GONK
-class SpeakerManagerService;
-#endif
-
 class TabParent;
 
 #define NUMBER_OF_AUDIO_CHANNELS (uint32_t)AudioChannel::EndGuard_
@@ -189,20 +185,6 @@ public:
                               uint64_t aInnerWindowID,
                               bool aCapture);
 
-#ifdef MOZ_WIDGET_GONK
-  void RegisterSpeakerManager(SpeakerManagerService* aSpeakerManager)
-  {
-    if (!mSpeakerManager.Contains(aSpeakerManager)) {
-      mSpeakerManager.AppendElement(aSpeakerManager);
-    }
-  }
-
-  void UnregisterSpeakerManager(SpeakerManagerService* aSpeakerManager)
-  {
-    mSpeakerManager.RemoveElement(aSpeakerManager);
-  }
-#endif
-
   static const nsAttrValue::EnumTable* GetAudioChannelTable();
   static AudioChannel GetAudioChannel(const nsAString& aString);
   static AudioChannel GetDefaultAudioChannel();
@@ -347,10 +329,6 @@ private:
 
   nsTObserverArray<nsAutoPtr<AudioChannelChildStatus>> mPlayingChildren;
 
-#ifdef MOZ_WIDGET_GONK
-  nsTArray<SpeakerManagerService*>  mSpeakerManager;
-#endif
-
   // Raw pointers because TabParents must unregister themselves.
   nsTArray<TabParent*> mTabParents;
 
diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
index 5c315517c..ed96ee23b 100644
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -767,12 +767,6 @@ StaticRefPtr<VibrateWindowListener> gVibrateWindowListener;
 
 static bool
 MayVibrate(nsIDocument* doc) {
-#if MOZ_WIDGET_GONK
-  if (XRE_IsParentProcess()) {
-    return true; // The system app can always vibrate
-  }
-#endif // MOZ_WIDGET_GONK
-
   // Hidden documents cannot start or stop a vibration.
   return (doc && !doc->Hidden());
 }
diff --git a/dom/base/ScreenOrientation.cpp b/dom/base/ScreenOrientation.cpp
index bb3ccf5c3..ec9c4fa29 100644
--- a/dom/base/ScreenOrientation.cpp
+++ b/dom/base/ScreenOrientation.cpp
@@ -309,7 +309,7 @@ ScreenOrientation::LockInternal(ScreenOrientationInternal aOrientation, ErrorRes
     return nullptr;
   }
 
-#if !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_GONK)
+#if !defined(MOZ_WIDGET_ANDROID)
   // User agent does not support locking the screen orientation.
   p->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
   return p.forget();
diff --git a/dom/base/nsContentPermissionHelper.cpp b/dom/base/nsContentPermissionHelper.cpp
index fd04b1013..c57fc6233 100644
--- a/dom/base/nsContentPermissionHelper.cpp
+++ b/dom/base/nsContentPermissionHelper.cpp
@@ -5,9 +5,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include <map>
-#ifdef MOZ_WIDGET_GONK
-#include "GonkPermission.h"
-#endif // MOZ_WIDGET_GONK
 #include "nsCOMPtr.h"
 #include "nsIDOMElement.h"
 #include "nsIPrincipal.h"
diff --git a/dom/base/nsGlobalWindow.cpp b/dom/base/nsGlobalWindow.cpp
index 9663a6dbf..4e384c4d2 100644
--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@@ -25,7 +25,7 @@
 #include "mozilla/dom/Timeout.h"
 #include "mozilla/dom/TimeoutHandler.h"
 #include "mozilla/IntegerPrintfMacros.h"
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 #include "mozilla/dom/WindowOrientationObserver.h"
 #endif
 #include "nsDOMOfflineResourceList.h"
@@ -1948,7 +1948,7 @@ nsGlobalWindow::CleanUp()
   mSpeechSynthesis = nullptr;
 #endif
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   mOrientationChangeObserver = nullptr;
 #endif
 
@@ -2076,7 +2076,7 @@ nsGlobalWindow::FreeInnerObjects()
     mScreen = nullptr;
   }
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   mOrientationChangeObserver = nullptr;
 #endif
 
@@ -14009,7 +14009,7 @@ nsGlobalWindow::DisableDeviceSensor(uint32_t aType)
   }
 }
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 void
 nsGlobalWindow::EnableOrientationChangeListener()
 {
@@ -14902,7 +14902,7 @@ nsGlobalWindow::IsModalContentWindow(JSContext* aCx, JSObject* aGlobal)
   return xpc::WindowOrNull(aGlobal)->IsModalContentWindow();
 }
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 int16_t
 nsGlobalWindow::Orientation(CallerType aCallerType) const
 {
diff --git a/dom/base/nsGlobalWindow.h b/dom/base/nsGlobalWindow.h
index 94d565bf3..467bc6796 100644
--- a/dom/base/nsGlobalWindow.h
+++ b/dom/base/nsGlobalWindow.h
@@ -138,7 +138,7 @@ class U2F;
 class VRDisplay;
 class VREventObserver;
 class WakeLock;
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 class WindowOrientationObserver;
 #endif
 class Worklet;
@@ -631,7 +631,7 @@ public:
   virtual void EnableDeviceSensor(uint32_t aType) override;
   virtual void DisableDeviceSensor(uint32_t aType) override;
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   virtual void EnableOrientationChangeListener() override;
   virtual void DisableOrientationChangeListener() override;
 #endif
@@ -905,7 +905,7 @@ public:
   nsIDOMOfflineResourceList* GetApplicationCache(mozilla::ErrorResult& aError);
   already_AddRefed<nsIDOMOfflineResourceList> GetApplicationCache() override;
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   int16_t Orientation(mozilla::dom::CallerType aCallerType) const;
 #endif
 
@@ -1971,7 +1971,7 @@ protected:
 
   nsTArray<uint32_t> mEnabledSensors;
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   nsAutoPtr<mozilla::dom::WindowOrientationObserver> mOrientationChangeObserver;
 #endif
 
diff --git a/dom/base/nsPIDOMWindow.h b/dom/base/nsPIDOMWindow.h
index 3fd666beb..47affbb06 100644
--- a/dom/base/nsPIDOMWindow.h
+++ b/dom/base/nsPIDOMWindow.h
@@ -444,7 +444,7 @@ public:
    */
   virtual void DisableDeviceSensor(uint32_t aType) = 0;
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   virtual void EnableOrientationChangeListener() = 0;
   virtual void DisableOrientationChangeListener() = 0;
 #endif
diff --git a/dom/canvas/CanvasRenderingContext2D.cpp b/dom/canvas/CanvasRenderingContext2D.cpp
index a38c38293..f4c4259f6 100644
--- a/dom/canvas/CanvasRenderingContext2D.cpp
+++ b/dom/canvas/CanvasRenderingContext2D.cpp
@@ -141,10 +141,6 @@ using mozilla::gl::GLContextProvider;
 #include "gfxWindowsPlatform.h"
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include "mozilla/layers/ShadowLayers.h"
-#endif
-
 // windows.h (included by chromium code) defines this, in its infinite wisdom
 #undef DrawText
 
diff --git a/dom/canvas/WebGLContext.cpp b/dom/canvas/WebGLContext.cpp
index 176d56f8c..2a92084b4 100644
--- a/dom/canvas/WebGLContext.cpp
+++ b/dom/canvas/WebGLContext.cpp
@@ -51,10 +51,6 @@
 #include "VRManagerChild.h"
 #include "mozilla/layers/TextureClientSharedSurface.h"
 
-#ifdef MOZ_WIDGET_GONK
-#include "mozilla/layers/ShadowLayers.h"
-#endif
-
 // Local
 #include "CanvasUtils.h"
 #include "WebGL1Context.h"
@@ -545,30 +541,6 @@ BaseCaps(const WebGLContextOptions& options, WebGLContext* webgl)
     // for now it's just behind a pref for testing/evaluation.
     baseCaps.bpp16 = gfxPrefs::WebGLPrefer16bpp();
 
-#ifdef MOZ_WIDGET_GONK
-    do {
-        auto canvasElement = webgl->GetCanvas();
-        if (!canvasElement)
-            break;
-
-        auto ownerDoc = canvasElement->OwnerDoc();
-        nsIWidget* docWidget = nsContentUtils::WidgetForDocument(ownerDoc);
-        if (!docWidget)
-            break;
-
-        layers::LayerManager* layerManager = docWidget->GetLayerManager();
-        if (!layerManager)
-            break;
-
-        // XXX we really want "AsSurfaceAllocator" here for generality
-        layers::ShadowLayerForwarder* forwarder = layerManager->AsShadowForwarder();
-        if (!forwarder)
-            break;
-
-        baseCaps.surfaceAllocator = forwarder->GetTextureForwarder();
-    } while (false);
-#endif
-
     // Done with baseCaps construction.
 
     if (!gfxPrefs::WebGLForceMSAA()) {
diff --git a/dom/events/EventListenerManager.cpp b/dom/events/EventListenerManager.cpp
index ae8bf1b1a..fe896870c 100644
--- a/dom/events/EventListenerManager.cpp
+++ b/dom/events/EventListenerManager.cpp
@@ -352,7 +352,7 @@ EventListenerManager::AddEventListenerInternal(
     EnableDevice(eDeviceLight);
   } else if (aTypeAtom == nsGkAtoms::ondevicemotion) {
     EnableDevice(eDeviceMotion);
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
   } else if (aTypeAtom == nsGkAtoms::onorientationchange) {
     EnableDevice(eOrientationChange);
 #endif
@@ -481,7 +481,7 @@ EventListenerManager::IsDeviceType(EventMessage aEventMessage)
     case eDeviceLight:
     case eDeviceProximity:
     case eUserProximity:
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
     case eOrientationChange:
 #endif
       return true;
@@ -529,7 +529,7 @@ EventListenerManager::EnableDevice(EventMessage aEventMessage)
       window->EnableDeviceSensor(SENSOR_LINEAR_ACCELERATION);
       window->EnableDeviceSensor(SENSOR_GYROSCOPE);
       break;
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
     case eOrientationChange:
       window->EnableOrientationChangeListener();
       break;
@@ -575,7 +575,7 @@ EventListenerManager::DisableDevice(EventMessage aEventMessage)
     case eDeviceLight:
       window->DisableDeviceSensor(SENSOR_LIGHT);
       break;
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
     case eOrientationChange:
       window->DisableOrientationChangeListener();
       break;
diff --git a/dom/events/EventNameList.h b/dom/events/EventNameList.h
index 3f0af9fe9..214b844e7 100644
--- a/dom/events/EventNameList.h
+++ b/dom/events/EventNameList.h
@@ -563,7 +563,7 @@ WINDOW_EVENT(online,
              eOnline,
              EventNameType_XUL | EventNameType_HTMLBodyOrFramesetOnly,
              eBasicEventClass)
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 WINDOW_EVENT(orientationchange,
              eOrientationChange,
              EventNameType_HTMLBodyOrFramesetOnly,
diff --git a/dom/geolocation/nsGeolocation.cpp b/dom/geolocation/nsGeolocation.cpp
index 9fcdb350a..2d84a3e11 100644
--- a/dom/geolocation/nsGeolocation.cpp
+++ b/dom/geolocation/nsGeolocation.cpp
@@ -33,10 +33,6 @@ class nsIPrincipal;
 #include "AndroidLocationProvider.h"
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include "GonkGPSGeolocationProvider.h"
-#endif
-
 #ifdef MOZ_GPSD
 #include "GpsdLocationProvider.h"
 #endif
@@ -688,15 +684,6 @@ nsresult nsGeolocationService::Init()
   mProvider = new AndroidLocationProvider();
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-  // GonkGPSGeolocationProvider can be started at boot up time for initialization reasons.
-  // do_getService gets hold of the already initialized component and starts
-  // processing location requests immediately.
-  // do_Createinstance will create multiple instances of the provider which is not right.
-  // bug 993041
-  mProvider = do_GetService(GONK_GPS_GEOLOCATION_PROVIDER_CONTRACTID);
-#endif
-
 #ifdef MOZ_WIDGET_GTK
 #ifdef MOZ_GPSD
   if (Preferences::GetBool("geo.provider.use_gpsd", false)) {
diff --git a/dom/html/nsIFormControl.h b/dom/html/nsIFormControl.h
index e07f7c829..34380bc67 100644
--- a/dom/html/nsIFormControl.h
+++ b/dom/html/nsIFormControl.h
@@ -267,8 +267,8 @@ nsIFormControl::IsSingleLineTextControl(bool aExcludePassword, uint32_t aType)
          aType == NS_FORM_INPUT_TEL ||
          aType == NS_FORM_INPUT_URL ||
          // TODO: those are temporary until bug 773205 is fixed.
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
-         // On Android/B2G, date/time input appears as a normal text box.
+#if defined(MOZ_WIDGET_ANDROID)
+         // On Android, date/time input appears as a normal text box.
          aType == NS_FORM_INPUT_TIME ||
          aType == NS_FORM_INPUT_DATE ||
 #endif
diff --git a/dom/indexedDB/ActorsParent.cpp b/dom/indexedDB/ActorsParent.cpp
index 39e039c0f..9678fb49f 100644
--- a/dom/indexedDB/ActorsParent.cpp
+++ b/dom/indexedDB/ActorsParent.cpp
@@ -121,7 +121,7 @@
          LogLevel::Debug,                                                         \
          _args )
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 #define IDB_MOBILE
 #endif
 
diff --git a/dom/ipc/ContentChild.cpp b/dom/ipc/ContentChild.cpp
index d7068c6c3..9e1c7e8cb 100644
--- a/dom/ipc/ContentChild.cpp
+++ b/dom/ipc/ContentChild.cpp
@@ -137,12 +137,6 @@
 #include "APKOpen.h"
 #endif
 
-#if defined(MOZ_WIDGET_GONK)
-#include "nsVolume.h"
-#include "nsVolumeService.h"
-#include "SpeakerManagerService.h"
-#endif
-
 #ifdef XP_WIN
 #include <process.h>
 #define getpid _getpid
@@ -196,9 +190,6 @@ using namespace mozilla::net;
 using namespace mozilla::jsipc;
 using namespace mozilla::psm;
 using namespace mozilla::widget;
-#if defined(MOZ_WIDGET_GONK)
-using namespace mozilla::system;
-#endif
 using namespace mozilla::widget;
 
 namespace mozilla {
@@ -585,15 +576,7 @@ ContentChild::Init(MessageLoop* aIOLoop,
 void
 ContentChild::InitProcessAttributes()
 {
-#ifdef MOZ_WIDGET_GONK
-  if (mIsForApp && !mIsForBrowser) {
-    SetProcessName(NS_LITERAL_STRING("(Preallocated app)"), false);
-  } else {
-    SetProcessName(NS_LITERAL_STRING("Browser"), false);
-  }
-#else
   SetProcessName(NS_LITERAL_STRING("Web Content"), true);
-#endif
 }
 
 void
@@ -1257,15 +1240,6 @@ ContentChild::RecvNotifyLayerAllocated(const dom::TabId& aTabId, const uint64_t&
 bool
 ContentChild::RecvSpeakerManagerNotify()
 {
-#ifdef MOZ_WIDGET_GONK
-  // Only notify the process which has the SpeakerManager instance.
-  RefPtr<SpeakerManagerService> service =
-    SpeakerManagerService::GetSpeakerManagerService();
-  if (service) {
-    service->Notify();
-  }
-  return true;
-#endif
   return false;
 }
 
@@ -2284,12 +2258,6 @@ ContentChild::RecvLastPrivateDocShellDestroyed()
 bool
 ContentChild::RecvVolumes(nsTArray<VolumeInfo>&& aVolumes)
 {
-#ifdef MOZ_WIDGET_GONK
-  RefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
-  if (vs) {
-    vs->RecvVolumesFromParent(aVolumes);
-  }
-#endif
   return true;
 }
 
@@ -2306,17 +2274,6 @@ ContentChild::RecvFileSystemUpdate(const nsString& aFsName,
                                    const bool& aIsRemovable,
                                    const bool& aIsHotSwappable)
 {
-#ifdef MOZ_WIDGET_GONK
-  RefPtr<nsVolume> volume = new nsVolume(aFsName, aVolumeName, aState,
-                                         aMountGeneration, aIsMediaPresent,
-                                         aIsSharing, aIsFormatting, aIsFake,
-                                         aIsUnmounting, aIsRemovable, aIsHotSwappable);
-
-  RefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
-  if (vs) {
-    vs->UpdateVolume(volume);
-  }
-#else
   // Remove warnings about unused arguments
   Unused << aFsName;
   Unused << aVolumeName;
@@ -2329,22 +2286,15 @@ ContentChild::RecvFileSystemUpdate(const nsString& aFsName,
   Unused << aIsUnmounting;
   Unused << aIsRemovable;
   Unused << aIsHotSwappable;
-#endif
+
   return true;
 }
 
 bool
 ContentChild::RecvVolumeRemoved(const nsString& aFsName)
 {
-#ifdef MOZ_WIDGET_GONK
-  RefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
-  if (vs) {
-    vs->RemoveVolumeByName(aFsName);
-  }
-#else
   // Remove warnings about unused arguments
   Unused << aFsName;
-#endif
   return true;
 }
 
diff --git a/dom/ipc/ContentParent.cpp b/dom/ipc/ContentParent.cpp
index 582490d7b..8b9ab4442 100644
--- a/dom/ipc/ContentParent.cpp
+++ b/dom/ipc/ContentParent.cpp
@@ -16,11 +16,6 @@
 # include <sys/resource.h>
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include <sys/types.h>
-#include <sys/wait.h>
-#endif
-
 #include "chrome/common/process_watcher.h"
 
 #include "mozilla/a11y/PDocAccessible.h"
@@ -210,14 +205,6 @@
 # include "AndroidBridge.h"
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include "nsIVolume.h"
-#include "nsVolumeService.h"
-#include "nsIVolumeService.h"
-#include "SpeakerManagerService.h"
-using namespace mozilla::system;
-#endif
-
 #ifdef MOZ_WIDGET_GTK
 #include <gdk/gdk.h>
 #endif
@@ -526,11 +513,6 @@ static const char* sObserverTopics[] = {
   "child-mmu-request",
   "last-pb-context-exited",
   "file-watcher-update",
-#ifdef MOZ_WIDGET_GONK
-  NS_VOLUME_STATE_CHANGED,
-  NS_VOLUME_REMOVED,
-  "phone-state-changed",
-#endif
 #ifdef ACCESSIBILITY
   "a11y-init-or-shutdown",
 #endif
@@ -1355,14 +1337,6 @@ ContentParent::ForwardKnownInfo()
   if (!mMetamorphosed) {
     return;
   }
-#ifdef MOZ_WIDGET_GONK
-  InfallibleTArray<VolumeInfo> volumeInfo;
-  RefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
-  if (vs) {
-    vs->GetVolumesForIPC(&volumeInfo);
-    Unused << SendVolumes(volumeInfo);
-  }
-#endif /* MOZ_WIDGET_GONK */
 }
 
 namespace {
@@ -1410,23 +1384,6 @@ bool
 ContentParent::SetPriorityAndCheckIsAlive(ProcessPriority aPriority)
 {
   ProcessPriorityManager::SetProcessPriority(this, aPriority);
-
-  // Now that we've set this process's priority, check whether the process is
-  // still alive.  Hopefully we've set the priority to FOREGROUND*, so the
-  // process won't unexpectedly crash after this point!
-  //
-  // Bug 943174: use waitid() with WNOWAIT so that, if the process
-  // did exit, we won't consume its zombie and confuse the
-  // GeckoChildProcessHost dtor.
-#ifdef MOZ_WIDGET_GONK
-  siginfo_t info;
-  info.si_pid = 0;
-  if (waitid(P_PID, Pid(), &info, WNOWAIT | WNOHANG | WEXITED) == 0
-    && info.si_pid != 0) {
-    return false;
-  }
-#endif
-
   return true;
 }
 
@@ -2686,50 +2643,6 @@ ContentParent::Observe(nsISupports* aSubject,
   else if (!strcmp(aTopic, "last-pb-context-exited")) {
     Unused << SendLastPrivateDocShellDestroyed();
   }
-#ifdef MOZ_WIDGET_GONK
-  else if(!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) {
-    nsCOMPtr<nsIVolume> vol = do_QueryInterface(aSubject);
-    if (!vol) {
-      return NS_ERROR_NOT_AVAILABLE;
-    }
-
-    nsString volName;
-    nsString mountPoint;
-    int32_t  state;
-    int32_t  mountGeneration;
-    bool   isMediaPresent;
-    bool   isSharing;
-    bool   isFormatting;
-    bool   isFake;
-    bool   isUnmounting;
-    bool   isRemovable;
-    bool   isHotSwappable;
-
-    vol->GetName(volName);
-    vol->GetMountPoint(mountPoint);
-    vol->GetState(&state);
-    vol->GetMountGeneration(&mountGeneration);
-    vol->GetIsMediaPresent(&isMediaPresent);
-    vol->GetIsSharing(&isSharing);
-    vol->GetIsFormatting(&isFormatting);
-    vol->GetIsFake(&isFake);
-    vol->GetIsUnmounting(&isUnmounting);
-    vol->GetIsRemovable(&isRemovable);
-    vol->GetIsHotSwappable(&isHotSwappable);
-
-    Unused << SendFileSystemUpdate(volName, mountPoint, state,
-                                   mountGeneration, isMediaPresent,
-                                   isSharing, isFormatting, isFake,
-                                   isUnmounting, isRemovable, isHotSwappable);
-  } else if (!strcmp(aTopic, "phone-state-changed")) {
-    nsString state(aData);
-    Unused << SendNotifyPhoneStateChange(state);
-  }
-  else if(!strcmp(aTopic, NS_VOLUME_REMOVED)) {
-    nsString volName(aData);
-    Unused << SendVolumeRemoved(volName);
-  }
-#endif
 #ifdef ACCESSIBILITY
   else if (aData && !strcmp(aTopic, "a11y-init-or-shutdown")) {
     if (*aData == '1') {
@@ -3398,29 +3311,12 @@ ContentParent::RecvPSpeechSynthesisConstructor(PSpeechSynthesisParent* aActor)
 bool
 ContentParent::RecvSpeakerManagerGetSpeakerStatus(bool* aValue)
 {
-#ifdef MOZ_WIDGET_GONK
-  *aValue = false;
-  RefPtr<SpeakerManagerService> service =
-  SpeakerManagerService::GetOrCreateSpeakerManagerService();
-  MOZ_ASSERT(service);
-
-  *aValue = service->GetSpeakerStatus();
-  return true;
-#endif
   return false;
 }
 
 bool
 ContentParent::RecvSpeakerManagerForceSpeaker(const bool& aEnable)
 {
-#ifdef MOZ_WIDGET_GONK
-  RefPtr<SpeakerManagerService> service =
-  SpeakerManagerService::GetOrCreateSpeakerManagerService();
-  MOZ_ASSERT(service);
-  service->ForceSpeaker(aEnable, mChildID);
-
-  return true;
-#endif
   return false;
 }
 
@@ -3976,49 +3872,22 @@ bool
 ContentParent::RecvCreateFakeVolume(const nsString& fsName,
                                     const nsString& mountPoint)
 {
-#ifdef MOZ_WIDGET_GONK
-  nsresult rv;
-  nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
-  if (vs) {
-    vs->CreateFakeVolume(fsName, mountPoint);
-  }
-  return true;
-#else
-  NS_WARNING("ContentParent::RecvCreateFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
+  NS_WARNING("ContentParent::RecvCreateFakeVolume shouldn't be called");
   return false;
-#endif
 }
 
 bool
 ContentParent::RecvSetFakeVolumeState(const nsString& fsName, const int32_t& fsState)
 {
-#ifdef MOZ_WIDGET_GONK
-  nsresult rv;
-  nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
-  if (vs) {
-    vs->SetFakeVolumeState(fsName, fsState);
-  }
-  return true;
-#else
-  NS_WARNING("ContentParent::RecvSetFakeVolumeState shouldn't be called when MOZ_WIDGET_GONK is not defined");
+  NS_WARNING("ContentParent::RecvSetFakeVolumeState shouldn't be called");
   return false;
-#endif
 }
 
 bool
 ContentParent::RecvRemoveFakeVolume(const nsString& fsName)
 {
-#ifdef MOZ_WIDGET_GONK
-  nsresult rv;
-  nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
-  if (vs) {
-    vs->RemoveFakeVolume(fsName);
-  }
-  return true;
-#else
-  NS_WARNING("ContentParent::RecvRemoveFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
+  NS_WARNING("ContentParent::RecvRemoveFakeVolume shouldn't be called");
   return false;
-#endif
 }
 
 bool
diff --git a/dom/network/TCPSocket.cpp b/dom/network/TCPSocket.cpp
index 4eb2f72f6..38827a9ac 100644
--- a/dom/network/TCPSocket.cpp
+++ b/dom/network/TCPSocket.cpp
@@ -33,11 +33,6 @@
 #include "nsStringStream.h"
 #include "secerr.h"
 #include "sslerr.h"
-#ifdef MOZ_WIDGET_GONK
-#include "nsINetworkStatsServiceProxy.h"
-#include "nsINetworkManager.h"
-#include "nsINetworkInterface.h"
-#endif
 
 #define BUFFER_SIZE 65536
 #define NETWORK_STATS_THRESHOLD 65536
@@ -163,12 +158,6 @@ TCPSocket::TCPSocket(nsIGlobalObject* aGlobal, const nsAString& aHost, uint16_t
   , mTrackingNumber(0)
   , mWaitingForStartTLS(false)
   , mObserversActive(false)
-#ifdef MOZ_WIDGET_GONK
-  , mTxBytes(0)
-  , mRxBytes(0)
-  , mAppId(nsIScriptSecurityManager::UNKNOWN_APP_ID)
-  , mInIsolatedMozBrowser(false)
-#endif
 {
   if (aGlobal) {
     nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(aGlobal);
@@ -323,13 +312,6 @@ TCPSocket::InitWithTransport(nsISocketTransport* aTransport)
   mTransport->GetPort(&port);
   mPort = port;
 
-#ifdef MOZ_WIDGET_GONK
-  nsCOMPtr<nsINetworkManager> networkManager = do_GetService("@mozilla.org/network/manager;1");
-  if (networkManager) {
-    networkManager->GetActiveNetworkInfo(getter_AddRefs(mActiveNetworkInfo));
-  }
-#endif
-
   return NS_OK;
 }
 
@@ -651,12 +633,6 @@ TCPSocket::Resume(mozilla::ErrorResult& aRv)
 
 nsresult
 TCPSocket::MaybeReportErrorAndCloseIfOpen(nsresult status) {
-#ifdef MOZ_WIDGET_GONK
-  // Save network statistics once the connection is closed.
-  // For now this function is Gonk-specific.
-  SaveNetworkStats(true);
-#endif
-
   // If we're closed, we've already reported the error or just don't need to
   // report the error.
   if (mReadyState == TCPReadyState::Closed) {
@@ -941,12 +917,6 @@ TCPSocket::Send(nsIInputStream* aStream, uint32_t aByteLength)
 
   EnsureCopying();
 
-#ifdef MOZ_WIDGET_GONK
-  // Collect transmitted amount for network statistics.
-  mTxBytes += aByteLength;
-  SaveNetworkStats(false);
-#endif
-
   return !bufferFull;
 }
 
@@ -1069,12 +1039,6 @@ NS_IMETHODIMP
 TCPSocket::OnDataAvailable(nsIRequest* aRequest, nsISupports* aContext, nsIInputStream* aStream,
                            uint64_t aOffset, uint32_t aCount)
 {
-#ifdef MOZ_WIDGET_GONK
-  // Collect received amount for network statistics.
-  mRxBytes += aCount;
-  SaveNetworkStats(false);
-#endif
-
   if (mUseArrayBuffers) {
     nsTArray<uint8_t> buffer;
     buffer.SetCapacity(aCount);
@@ -1160,10 +1124,7 @@ TCPSocket::SetSocketBridgeParent(TCPSocketParent* aBridgeParent)
 void
 TCPSocket::SetAppIdAndBrowser(uint32_t aAppId, bool aInIsolatedMozBrowser)
 {
-#ifdef MOZ_WIDGET_GONK
-  mAppId = aAppId;
-  mInIsolatedMozBrowser = aInIsolatedMozBrowser;
-#endif
+  /*** STUB ***/
 }
 
 NS_IMETHODIMP
@@ -1190,37 +1151,6 @@ TCPSocket::UpdateBufferedAmount(uint32_t aBufferedAmount, uint32_t aTrackingNumb
   return NS_OK;
 }
 
-#ifdef MOZ_WIDGET_GONK
-void
-TCPSocket::SaveNetworkStats(bool aEnforce)
-{
-  if (!mTxBytes && !mRxBytes) {
-    // There is no traffic at all. No need to save statistics.
-    return;
-  }
-
-  // If "enforce" is false, the traffic amount is saved to NetworkStatsServiceProxy
-  // only when the total amount exceeds the predefined threshold value.
-  // The purpose is to avoid too much overhead for collecting statistics.
-  uint32_t totalBytes = mTxBytes + mRxBytes;
-  if (!aEnforce && totalBytes < NETWORK_STATS_THRESHOLD) {
-    return;
-  }
-
-  nsCOMPtr<nsINetworkStatsServiceProxy> nssProxy =
-    do_GetService("@mozilla.org/networkstatsServiceProxy;1");
-  if (!nssProxy) {
-    return;
-  }
-
-  nssProxy->SaveAppStats(mAppId, mInIsolatedMozBrowser, mActiveNetworkInfo,
-                         PR_Now(), mRxBytes, mTxBytes, false, nullptr);
-
-  // Reset the counters once the statistics is saved to NetworkStatsServiceProxy.
-  mTxBytes = mRxBytes = 0;
-}
-#endif
-
 NS_IMETHODIMP
 TCPSocket::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
 {
diff --git a/dom/network/TCPSocket.h b/dom/network/TCPSocket.h
index e98c03ca5..4ad425b9e 100644
--- a/dom/network/TCPSocket.h
+++ b/dom/network/TCPSocket.h
@@ -179,10 +179,6 @@ private:
   void ActivateTLS();
   // Dispatch an error event if necessary, then dispatch a "close" event.
   nsresult MaybeReportErrorAndCloseIfOpen(nsresult status);
-#ifdef MOZ_WIDGET_GONK
-  // Store and reset any saved network stats for this socket.
-  void SaveNetworkStats(bool aEnforce);
-#endif
 
   // Helper for FireDataStringEvent/FireDataArrayEvent.
   nsresult FireDataEvent(JSContext* aCx, const nsAString& aType,
@@ -246,19 +242,6 @@ private:
   nsTArray<nsCOMPtr<nsIInputStream>> mPendingDataWhileCopierActive;
 
   bool mObserversActive;
-
-#ifdef MOZ_WIDGET_GONK
-  // Number of bytes sent.
-  uint32_t mTxBytes;
-  // Number of bytes received.
-  uint32_t mRxBytes;
-  // The app that owns this socket.
-  uint32_t mAppId;
-  // Was this socket created inside of an isolated browser frame?
-  bool mInIsolatedMozBrowser;
-  // The name of the active network used by this socket.
-  nsCOMPtr<nsINetworkInfo> mActiveNetworkInfo;
-#endif
 };
 
 } // namespace dom
diff --git a/dom/plugins/base/PluginPRLibrary.cpp b/dom/plugins/base/PluginPRLibrary.cpp
index a7ad76ea4..ecc55d455 100644
--- a/dom/plugins/base/PluginPRLibrary.cpp
+++ b/dom/plugins/base/PluginPRLibrary.cpp
@@ -57,12 +57,6 @@ PluginPRLibrary::NP_Initialize(NPNetscapeFuncs* bFuncs,
   mNPP_GetSitesWithData = pFuncs->getsiteswithdata;
   return NS_OK;
 }
-#elif defined(MOZ_WIDGET_GONK)
-nsresult
-PluginPRLibrary::NP_Initialize(NPNetscapeFuncs* bFuncs, NPError* error)
-{
-  return NS_OK;
-}
 #elif defined(XP_UNIX) && !defined(XP_MACOSX)
 nsresult
 PluginPRLibrary::NP_Initialize(NPNetscapeFuncs* bFuncs,
diff --git a/dom/plugins/base/PluginPRLibrary.h b/dom/plugins/base/PluginPRLibrary.h
index 602ad8cf8..ffd3de934 100644
--- a/dom/plugins/base/PluginPRLibrary.h
+++ b/dom/plugins/base/PluginPRLibrary.h
@@ -81,7 +81,7 @@ public:
         return true;
     }
 
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
     virtual nsresult NP_Initialize(NPNetscapeFuncs* aNetscapeFuncs,
                                    NPPluginFuncs* aFuncs, NPError* aError) override;
 #else
diff --git a/dom/plugins/base/nsNPAPIPlugin.cpp b/dom/plugins/base/nsNPAPIPlugin.cpp
index 1bea269cd..697bfacd4 100644
--- a/dom/plugins/base/nsNPAPIPlugin.cpp
+++ b/dom/plugins/base/nsNPAPIPlugin.cpp
@@ -320,7 +320,6 @@ nsNPAPIPlugin::CreatePlugin(nsPluginTag *aPluginTag, nsNPAPIPlugin** aResult)
   if (rv != NS_OK || pluginCallError != NPERR_NO_ERROR) {
     return NS_ERROR_FAILURE;
   }
-#elif defined(MOZ_WIDGET_GONK)
 #else
   NPError pluginCallError;
   nsresult rv = pluginLib->NP_Initialize(&sBrowserFuncs, &plugin->mPluginFuncs, &pluginCallError);
diff --git a/dom/plugins/ipc/PluginLibrary.h b/dom/plugins/ipc/PluginLibrary.h
index c9499ee0d..2f9a3f81b 100644
--- a/dom/plugins/ipc/PluginLibrary.h
+++ b/dom/plugins/ipc/PluginLibrary.h
@@ -57,7 +57,7 @@ public:
 
   virtual bool HasRequiredFunctions() = 0;
 
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
   virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs, NPError* error) = 0;
 #else
   virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPError* error) = 0;
diff --git a/dom/plugins/ipc/PluginModuleParent.cpp b/dom/plugins/ipc/PluginModuleParent.cpp
index 73f9c1025..ae6da8787 100755
--- a/dom/plugins/ipc/PluginModuleParent.cpp
+++ b/dom/plugins/ipc/PluginModuleParent.cpp
@@ -529,7 +529,7 @@ PluginModuleChromeParent::OnProcessLaunched(const bool aSucceeded)
         if (NS_SUCCEEDED(mAsyncInitRv))
 #endif
         {
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
             mAsyncInitRv = NP_Initialize(mNPNIface,
                                          mNPPIface,
                                          &mAsyncInitError);
@@ -1745,7 +1745,7 @@ PluginModuleChromeParent::CachedSettingChanged(const char* aPref, void* aModule)
     module->CachedSettingChanged();
 }
 
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
 nsresult
 PluginModuleParent::NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs, NPError* error)
 {
diff --git a/dom/plugins/ipc/PluginModuleParent.h b/dom/plugins/ipc/PluginModuleParent.h
index 946d4c236..d00a01401 100644
--- a/dom/plugins/ipc/PluginModuleParent.h
+++ b/dom/plugins/ipc/PluginModuleParent.h
@@ -267,7 +267,7 @@ protected:
                        const mozilla::NativeEventData& aNativeKeyData,
                        bool aIsConsumed) override;
 
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
     virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs, NPError* error) override;
 #else
     virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPError* error) override;
@@ -517,7 +517,7 @@ private:
     PluginProcessParent* Process() const { return mSubprocess; }
     base::ProcessHandle ChildProcessHandle() { return mSubprocess->GetChildProcessHandle(); }
 
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GONK)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
     virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs, NPError* error) override;
 #else
     virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPError* error) override;
diff --git a/dom/presentation/PresentationSessionInfo.cpp b/dom/presentation/PresentationSessionInfo.cpp
index f93909864..1dd92ab69 100644
--- a/dom/presentation/PresentationSessionInfo.cpp
+++ b/dom/presentation/PresentationSessionInfo.cpp
@@ -31,11 +31,6 @@
 #include "nsIPresentationNetworkHelper.h"
 #endif // MOZ_WIDGET_ANDROID
 
-#ifdef MOZ_WIDGET_GONK
-#include "nsINetworkInterface.h"
-#include "nsINetworkManager.h"
-#endif
-
 using namespace mozilla;
 using namespace mozilla::dom;
 using namespace mozilla::services;
@@ -647,49 +642,7 @@ PresentationControllingInfo::Shutdown(nsresult aReason)
 nsresult
 PresentationControllingInfo::GetAddress()
 {
-#if defined(MOZ_WIDGET_GONK)
-  nsCOMPtr<nsINetworkManager> networkManager =
-    do_GetService("@mozilla.org/network/manager;1");
-  if (NS_WARN_IF(!networkManager)) {
-    return NS_ERROR_NOT_AVAILABLE;
-  }
-
-  nsCOMPtr<nsINetworkInfo> activeNetworkInfo;
-  networkManager->GetActiveNetworkInfo(getter_AddRefs(activeNetworkInfo));
-  if (NS_WARN_IF(!activeNetworkInfo)) {
-    return NS_ERROR_FAILURE;
-  }
-
-  char16_t** ips = nullptr;
-  uint32_t* prefixes = nullptr;
-  uint32_t count = 0;
-  activeNetworkInfo->GetAddresses(&ips, &prefixes, &count);
-  if (NS_WARN_IF(!count)) {
-    NS_Free(prefixes);
-    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, ips);
-    return NS_ERROR_FAILURE;
-  }
-
-  // TODO bug 1228504 Take all IP addresses in PresentationChannelDescription
-  // into account. And at the first stage Presentation API is only exposed on
-  // Firefox OS where the first IP appears enough for most scenarios.
-
-  nsAutoString ip;
-  ip.Assign(ips[0]);
-
-  // On Android platform, the IP address is retrieved from a callback function.
-  // To make consistent code sequence, following function call is dispatched
-  // into main thread instead of calling it directly.
-  NS_DispatchToMainThread(
-    NewRunnableMethod<nsCString>(
-      this,
-      &PresentationControllingInfo::OnGetAddress,
-      NS_ConvertUTF16toUTF8(ip)));
-
-  NS_Free(prefixes);
-  NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, ips);
-
-#elif defined(MOZ_WIDGET_ANDROID)
+#if defined(MOZ_WIDGET_ANDROID)
   RefPtr<PresentationNetworkHelper> networkHelper =
     new PresentationNetworkHelper(this,
                                   &PresentationControllingInfo::OnGetAddress);
diff --git a/dom/presentation/provider/PresentationDeviceProviderModule.cpp b/dom/presentation/provider/PresentationDeviceProviderModule.cpp
index 9100fa49b..9c084e7db 100644
--- a/dom/presentation/provider/PresentationDeviceProviderModule.cpp
+++ b/dom/presentation/provider/PresentationDeviceProviderModule.cpp
@@ -68,12 +68,9 @@ static const mozilla::Module::ContractIDEntry kPresentationDeviceProviderContrac
 };
 
 static const mozilla::Module::CategoryEntry kPresentationDeviceProviderCategories[] = {
-#if defined(MOZ_WIDGET_COCOA) || defined(MOZ_WIDGET_ANDROID) || (defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 16)
+#if defined(MOZ_WIDGET_COCOA) || defined(MOZ_WIDGET_ANDROID)
   { PRESENTATION_DEVICE_PROVIDER_CATEGORY, "MulticastDNSDeviceProvider", MULTICAST_DNS_PROVIDER_CONTRACT_ID },
 #endif
-#if defined(MOZ_WIDGET_GONK)
-  { PRESENTATION_DEVICE_PROVIDER_CATEGORY, "DisplayDeviceProvider", DISPLAY_DEVICE_PROVIDER_CONTRACT_ID },
-#endif
 #ifdef MOZ_WIDGET_ANDROID
   { PRESENTATION_DEVICE_PROVIDER_CATEGORY, "LegacyMDNSDeviceProvider", LEGACY_MDNS_PROVIDER_CONTRACT_ID },
 #endif //MOZ_WIDGET_ANDROID
diff --git a/dom/system/OSFileConstants.cpp b/dom/system/OSFileConstants.cpp
index 945233f4c..86377e75a 100644
--- a/dom/system/OSFileConstants.cpp
+++ b/dom/system/OSFileConstants.cpp
@@ -924,16 +924,6 @@ bool DefineOSFileConstants(JSContext *cx, JS::Handle<JSObject*> global)
     return false;
   }
 
-#if defined(MOZ_WIDGET_GONK)
-    JSString* strVersion = JS_NewStringCopyZ(cx, "Gonk");
-    if (!strVersion){
-      return false;
-    }
-    JS::Rooted<JS::Value> valVersion(cx, JS::StringValue(strVersion));
-    if (!JS_SetProperty(cx, objSys, "Name", valVersion)) {
-      return false;
-  }
-#else
   nsCOMPtr<nsIXULRuntime> runtime = do_GetService(XULRUNTIME_SERVICE_CONTRACTID);
   if (runtime) {
     nsAutoCString os;
@@ -950,7 +940,6 @@ bool DefineOSFileConstants(JSContext *cx, JS::Handle<JSObject*> global)
       return false;
     }
   }
-#endif // defined(MOZ_WIDGET_GONK)
 
 #if defined(DEBUG)
   JS::Rooted<JS::Value> valDebug(cx, JS::TrueValue());
diff --git a/dom/webidl/Window.webidl b/dom/webidl/Window.webidl
index 560313680..468f1cc8a 100644
--- a/dom/webidl/Window.webidl
+++ b/dom/webidl/Window.webidl
@@ -379,7 +379,7 @@ Window implements TouchEventHandlers;
 
 Window implements OnErrorEventHandlerForWindow;
 
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
 // https://compat.spec.whatwg.org/#windoworientation-interface
 partial interface Window {
   [NeedsCallerType]
diff --git a/hal/Hal.cpp b/hal/Hal.cpp
index 44be2f510..8ac9e6847 100644
--- a/hal/Hal.cpp
+++ b/hal/Hal.cpp
@@ -89,8 +89,6 @@ AssertMainProcess()
   MOZ_ASSERT(GeckoProcessType_Default == XRE_GetProcessType());
 }
 
-#if !defined(MOZ_WIDGET_GONK)
-
 bool
 WindowIsActive(nsPIDOMWindowInner* aWindow)
 {
@@ -100,8 +98,6 @@ WindowIsActive(nsPIDOMWindowInner* aWindow)
   return !document->Hidden();
 }
 
-#endif // !defined(MOZ_WIDGET_GONK)
-
 StaticAutoPtr<WindowIdentifier::IDArrayType> gLastIDToVibrate;
 
 void InitLastIDToVibrate()
@@ -123,7 +119,6 @@ Vibrate(const nsTArray<uint32_t>& pattern, const WindowIdentifier &id)
 {
   AssertMainThread();
 
-#if !defined(MOZ_WIDGET_GONK)
   // Only active windows may start vibrations.  If |id| hasn't gone
   // through the IPC layer -- that is, if our caller is the outside
   // world, not hal_proxy -- check whether the window is active.  If
@@ -134,7 +129,6 @@ Vibrate(const nsTArray<uint32_t>& pattern, const WindowIdentifier &id)
     HAL_LOG("Vibrate: Window is inactive, dropping vibrate.");
     return;
   }
-#endif // !defined(MOZ_WIDGET_GONK)
 
   if (!InSandbox()) {
     if (!gLastIDToVibrate) {
diff --git a/hal/linux/LinuxPower.cpp b/hal/linux/LinuxPower.cpp
index 70ab4a3f6..626d1ac0c 100644
--- a/hal/linux/LinuxPower.cpp
+++ b/hal/linux/LinuxPower.cpp
@@ -12,28 +12,9 @@
 #include "mozilla/Services.h"
 #include "MainThreadUtils.h"
 
-#if defined(MOZ_WIDGET_GONK)
-#include "cutils/android_reboot.h"
-#include "cutils/properties.h"
-#endif
-
 namespace mozilla {
 namespace hal_impl {
 
-#if (defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 19)
-static void
-PowerCtl(const char* aValue, int aCmd)
-{
-  // this invokes init's powerctl builtin via /init.rc
-  property_set("sys.powerctl", aValue);
-  // device should reboot in few moments, but if it doesn't - call
-  // android_reboot() to make sure that init isn't stuck somewhere
-  sleep(10);
-  HAL_LOG("Powerctl call takes too long, forcing %s.", aValue);
-  android_reboot(aCmd, 0, nullptr);
-}
-#endif
-
 void
 Reboot()
 {
@@ -44,14 +25,8 @@ Reboot()
     }
   }
 
-#if !defined(MOZ_WIDGET_GONK)
   sync();
   reboot(RB_AUTOBOOT);
-#elif (ANDROID_VERSION < 19)
-  android_reboot(ANDROID_RB_RESTART, 0, nullptr);
-#else
-  PowerCtl("reboot", ANDROID_RB_RESTART);
-#endif
 }
 
 void
@@ -64,14 +39,8 @@ PowerOff()
     }
   }
 
-#if !defined(MOZ_WIDGET_GONK)
   sync();
   reboot(RB_POWER_OFF);
-#elif (ANDROID_VERSION < 19)
-  android_reboot(ANDROID_RB_POWEROFF, 0, nullptr);
-#else
-  PowerCtl("shutdown", ANDROID_RB_POWEROFF);
-#endif
 }
 
 // Structure to specify how watchdog pthread is going to work.
diff --git a/layout/base/nsCSSFrameConstructor.cpp b/layout/base/nsCSSFrameConstructor.cpp
index 767298b85..c63374541 100644
--- a/layout/base/nsCSSFrameConstructor.cpp
+++ b/layout/base/nsCSSFrameConstructor.cpp
@@ -3658,7 +3658,7 @@ nsCSSFrameConstructor::FindInputData(Element* aElement,
                                  nsCSSAnonBoxes::buttonContent) },
     // TODO: this is temporary until a frame is written: bug 635240.
     SIMPLE_INT_CREATE(NS_FORM_INPUT_NUMBER, NS_NewNumberControlFrame),
-#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(MOZ_WIDGET_ANDROID)
     // On Android/B2G, date/time input appears as a normal text box.
     SIMPLE_INT_CREATE(NS_FORM_INPUT_TIME, NS_NewTextControlFrame),
     SIMPLE_INT_CREATE(NS_FORM_INPUT_DATE, NS_NewTextControlFrame),
diff --git a/layout/build/nsLayoutModule.cpp b/layout/build/nsLayoutModule.cpp
index ae0db06ab..748bc11d8 100644
--- a/layout/build/nsLayoutModule.cpp
+++ b/layout/build/nsLayoutModule.cpp
@@ -100,20 +100,6 @@
 #include "mozilla/dom/nsSynthVoiceRegistry.h"
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include "SystemWorkerManager.h"
-using mozilla::dom::gonk::SystemWorkerManager;
-#define SYSTEMWORKERMANAGER_CID \
-  {0xd53b6524, 0x6ac3, 0x42b0, {0xae, 0xca, 0x62, 0xb3, 0xc4, 0xe5, 0x2b, 0x04}}
-#endif
-
-#ifdef MOZ_WIDGET_GONK
-#include "AudioManager.h"
-using mozilla::dom::gonk::AudioManager;
-#include "nsVolumeService.h"
-using mozilla::system::nsVolumeService;
-#endif
-
 #include "mozilla/dom/PushNotifier.h"
 using mozilla::dom::PushNotifier;
 #define PUSHNOTIFIER_CID \
@@ -135,11 +121,9 @@ using mozilla::dom::AudioChannelAgent;
 #include "nsSystemPrincipal.h"
 #include "nsNullPrincipal.h"
 #include "nsNetCID.h"
-#ifndef MOZ_WIDGET_GONK
 #if defined(MOZ_WIDGET_ANDROID)
 #include "nsHapticFeedback.h"
 #endif
-#endif
 #include "nsParserUtils.h"
 
 #include "nsHTMLCanvasFrame.h"
@@ -201,9 +185,6 @@ static void Shutdown();
 
 #include "nsIPresentationService.h"
 
-#ifdef MOZ_WIDGET_GONK
-#include "GonkGPSGeolocationProvider.h"
-#endif
 #include "MediaManager.h"
 
 #include "GMPService.h"
@@ -284,30 +265,18 @@ NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(ServiceWorkerManager,
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(WorkerDebuggerManager,
                                          WorkerDebuggerManager::GetInstance)
 
-#ifdef MOZ_WIDGET_GONK
-NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(SystemWorkerManager,
-                                         SystemWorkerManager::FactoryCreate)
-#endif
-
 #ifdef MOZ_WEBSPEECH
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsSynthVoiceRegistry,
                                          nsSynthVoiceRegistry::GetInstanceForService)
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(AudioManager,
-                                         AudioManager::GetInstance)
-#endif
-
 NS_GENERIC_FACTORY_CONSTRUCTOR(AudioChannelAgent)
 
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsDeviceSensors)
 
-#ifndef MOZ_WIDGET_GONK
 #if defined(ANDROID)
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsHapticFeedback)
 #endif
-#endif
 NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(ThirdPartyUtil, Init)
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsIPowerManagerService,
                                          PowerManagerService::GetInstance)
@@ -316,16 +285,6 @@ NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsITimeService,
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsIStreamingProtocolControllerService,
                                          StreamingProtocolControllerService::GetInstance)
 
-#ifdef MOZ_WIDGET_GONK
-#ifndef DISABLE_MOZ_RIL_GEOLOC
-NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsIGeolocationProvider,
-                                         GonkGPSGeolocationProvider::GetSingleton)
-#endif
-// Since the nsVolumeService constructor calls into nsIPowerManagerService,
-// we need it to be constructed sometime after nsIPowerManagerService.
-NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsVolumeService,
-                                         nsVolumeService::GetSingleton)
-#endif
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsIMediaManagerService,
                                          MediaManager::GetInstance)
 NS_GENERIC_FACTORY_CONSTRUCTOR(PresentationDeviceManager)
@@ -702,13 +661,6 @@ NS_DEFINE_NAMED_CID(NOTIFICATIONTELEMETRYSERVICE_CID);
 NS_DEFINE_NAMED_CID(PUSHNOTIFIER_CID);
 
 NS_DEFINE_NAMED_CID(WORKERDEBUGGERMANAGER_CID);
-#ifdef MOZ_WIDGET_GONK
-NS_DEFINE_NAMED_CID(SYSTEMWORKERMANAGER_CID);
-#endif
-#ifdef MOZ_WIDGET_GONK
-NS_DEFINE_NAMED_CID(NS_AUDIOMANAGER_CID);
-NS_DEFINE_NAMED_CID(NS_VOLUMESERVICE_CID);
-#endif
 
 NS_DEFINE_NAMED_CID(NS_AUDIOCHANNELAGENT_CID);
 
@@ -740,16 +692,9 @@ NS_DEFINE_NAMED_CID(THIRDPARTYUTIL_CID);
 NS_DEFINE_NAMED_CID(NS_STRUCTUREDCLONECONTAINER_CID);
 NS_DEFINE_NAMED_CID(NS_DEVICE_SENSORS_CID);
 
-#ifndef MOZ_WIDGET_GONK
 #if defined(ANDROID)
 NS_DEFINE_NAMED_CID(NS_HAPTICFEEDBACK_CID);
 #endif
-#endif
-#ifndef DISABLE_MOZ_RIL_GEOLOC
-#ifdef MOZ_WIDGET_GONK
-NS_DEFINE_NAMED_CID(GONK_GPS_GEOLOCATION_PROVIDER_CID);
-#endif
-#endif
 NS_DEFINE_NAMED_CID(NS_POWERMANAGERSERVICE_CID);
 NS_DEFINE_NAMED_CID(OSFILECONSTANTSSERVICE_CID);
 NS_DEFINE_NAMED_CID(UDPSOCKETCHILD_CID);
@@ -983,13 +928,6 @@ static const mozilla::Module::CIDEntry kLayoutCIDs[] = {
   { &kNOTIFICATIONTELEMETRYSERVICE_CID, false, nullptr, NotificationTelemetryServiceConstructor },
   { &kPUSHNOTIFIER_CID, false, nullptr, PushNotifierConstructor },
   { &kWORKERDEBUGGERMANAGER_CID, true, nullptr, WorkerDebuggerManagerConstructor },
-#ifdef MOZ_WIDGET_GONK
-  { &kSYSTEMWORKERMANAGER_CID, true, nullptr, SystemWorkerManagerConstructor },
-#endif
-#ifdef MOZ_WIDGET_GONK
-  { &kNS_AUDIOMANAGER_CID, true, nullptr, AudioManagerConstructor },
-  { &kNS_VOLUMESERVICE_CID, true, nullptr, nsVolumeServiceConstructor },
-#endif
   { &kNS_AUDIOCHANNELAGENT_CID, true, nullptr, AudioChannelAgentConstructor },
   { &kNS_HTMLEDITOR_CID, false, nullptr, HTMLEditorConstructor },
   { &kNS_EDITORCONTROLLER_CID, false, nullptr, EditorControllerConstructor },
@@ -1025,11 +963,9 @@ static const mozilla::Module::CIDEntry kLayoutCIDs[] = {
   { &kNS_SYSTEMPRINCIPAL_CID, false, nullptr, nsSystemPrincipalConstructor },
   { &kNS_NULLPRINCIPAL_CID, false, nullptr, nsNullPrincipalConstructor },
   { &kNS_DEVICE_SENSORS_CID, false, nullptr, nsDeviceSensorsConstructor },
-#ifndef MOZ_WIDGET_GONK
 #if defined(ANDROID)
   { &kNS_HAPTICFEEDBACK_CID, false, nullptr, nsHapticFeedbackConstructor },
 #endif
-#endif
   { &kTHIRDPARTYUTIL_CID, false, nullptr, ThirdPartyUtilConstructor },
   { &kNS_STRUCTUREDCLONECONTAINER_CID, false, nullptr, nsStructuredCloneContainerConstructor },
   { &kNS_POWERMANAGERSERVICE_CID, false, nullptr, nsIPowerManagerServiceConstructor, Module::ALLOW_IN_GPU_PROCESS },
@@ -1038,9 +974,6 @@ static const mozilla::Module::CIDEntry kLayoutCIDs[] = {
   { &kGECKO_MEDIA_PLUGIN_SERVICE_CID, true, nullptr, GeckoMediaPluginServiceConstructor },
   { &kNS_TIMESERVICE_CID, false, nullptr, nsITimeServiceConstructor },
   { &kNS_MEDIASTREAMCONTROLLERSERVICE_CID, false, nullptr, nsIStreamingProtocolControllerServiceConstructor },
-#if defined(MOZ_WIDGET_GONK) && !defined(DISABLE_MOZ_RIL_GEOLOC)
-  { &kGONK_GPS_GEOLOCATION_PROVIDER_CID, false, nullptr, nsIGeolocationProviderConstructor },
-#endif
   { &kNS_MEDIAMANAGERSERVICE_CID, false, nullptr, nsIMediaManagerServiceConstructor },
 #ifdef ACCESSIBILITY
   { &kNS_ACCESSIBILITY_SERVICE_CID, false, nullptr, CreateA11yService },
@@ -1127,13 +1060,6 @@ static const mozilla::Module::ContractIDEntry kLayoutContracts[] = {
   { NOTIFICATIONTELEMETRYSERVICE_CONTRACTID, &kNOTIFICATIONTELEMETRYSERVICE_CID },
   { PUSHNOTIFIER_CONTRACTID, &kPUSHNOTIFIER_CID },
   { WORKERDEBUGGERMANAGER_CONTRACTID, &kWORKERDEBUGGERMANAGER_CID },
-#ifdef MOZ_WIDGET_GONK
-  { SYSTEMWORKERMANAGER_CONTRACTID, &kSYSTEMWORKERMANAGER_CID },
-#endif
-#ifdef MOZ_WIDGET_GONK
-  { NS_AUDIOMANAGER_CONTRACTID, &kNS_AUDIOMANAGER_CID },
-  { NS_VOLUMESERVICE_CONTRACTID, &kNS_VOLUMESERVICE_CID },
-#endif
   { NS_AUDIOCHANNELAGENT_CONTRACTID, &kNS_AUDIOCHANNELAGENT_CID },
   { "@mozilla.org/editor/htmleditor;1", &kNS_HTMLEDITOR_CID },
   { "@mozilla.org/editor/editorcontroller;1", &kNS_EDITORCONTROLLER_CID },
@@ -1168,11 +1094,9 @@ static const mozilla::Module::ContractIDEntry kLayoutContracts[] = {
   { NS_SYSTEMPRINCIPAL_CONTRACTID, &kNS_SYSTEMPRINCIPAL_CID },
   { NS_NULLPRINCIPAL_CONTRACTID, &kNS_NULLPRINCIPAL_CID },
   { NS_DEVICE_SENSORS_CONTRACTID, &kNS_DEVICE_SENSORS_CID },
-#ifndef MOZ_WIDGET_GONK
 #if defined(ANDROID)
   { "@mozilla.org/widget/hapticfeedback;1", &kNS_HAPTICFEEDBACK_CID },
 #endif
-#endif
   { THIRDPARTYUTIL_CONTRACTID, &kTHIRDPARTYUTIL_CID },
   { NS_STRUCTUREDCLONECONTAINER_CONTRACTID, &kNS_STRUCTUREDCLONECONTAINER_CID },
   { POWERMANAGERSERVICE_CONTRACTID, &kNS_POWERMANAGERSERVICE_CID, Module::ALLOW_IN_GPU_PROCESS },
@@ -1180,9 +1104,6 @@ static const mozilla::Module::ContractIDEntry kLayoutContracts[] = {
   { "@mozilla.org/udp-socket-child;1", &kUDPSOCKETCHILD_CID },
   { TIMESERVICE_CONTRACTID, &kNS_TIMESERVICE_CID },
   { MEDIASTREAMCONTROLLERSERVICE_CONTRACTID, &kNS_MEDIASTREAMCONTROLLERSERVICE_CID },
-#if defined(MOZ_WIDGET_GONK) && !defined(DISABLE_MOZ_RIL_GEOLOC)
-  { GONK_GPS_GEOLOCATION_PROVIDER_CONTRACTID, &kGONK_GPS_GEOLOCATION_PROVIDER_CID },
-#endif
   { MEDIAMANAGERSERVICE_CONTRACTID, &kNS_MEDIAMANAGERSERVICE_CID },
 #ifdef ACCESSIBILITY
   { "@mozilla.org/accessibilityService;1", &kNS_ACCESSIBILITY_SERVICE_CID },
@@ -1208,13 +1129,7 @@ static const mozilla::Module::CategoryEntry kLayoutCategories[] = {
   { "app-startup", "Push Notifier", "service," PUSHNOTIFIER_CONTRACTID },
   { "clear-origin-attributes-data", "QuotaManagerService", "service," QUOTAMANAGER_SERVICE_CONTRACTID },
   { OBSERVER_TOPIC_IDLE_DAILY, "QuotaManagerService", QUOTAMANAGER_SERVICE_CONTRACTID },
-#ifdef MOZ_WIDGET_GONK
-  { "app-startup", "Volume Service", "service," NS_VOLUMESERVICE_CONTRACTID },
-#endif
   CONTENTDLF_CATEGORIES
-#ifdef MOZ_WIDGET_GONK
-  { "profile-after-change", "Gonk System Worker Manager", SYSTEMWORKERMANAGER_CONTRACTID },
-#endif
   { "profile-after-change", "PresentationDeviceManager", PRESENTATION_DEVICE_MANAGER_CONTRACTID },
   { "profile-after-change", "PresentationService", PRESENTATION_SERVICE_CONTRACTID },
   { "profile-after-change", "Notification Telemetry Service", NOTIFICATIONTELEMETRYSERVICE_CONTRACTID },
diff --git a/layout/build/nsLayoutStatics.cpp b/layout/build/nsLayoutStatics.cpp
index 3f534c8d8..0306626c4 100644
--- a/layout/build/nsLayoutStatics.cpp
+++ b/layout/build/nsLayoutStatics.cpp
@@ -100,11 +100,6 @@
 #include "Latency.h"
 #include "WebAudioUtils.h"
 
-#ifdef MOZ_WIDGET_GONK
-#include "nsVolumeService.h"
-using namespace mozilla::system;
-#endif
-
 #include "nsError.h"
 
 #include "nsJSEnvironment.h"
@@ -395,10 +390,6 @@ nsLayoutStatics::Shutdown()
   AsyncLatencyLogger::ShutdownLogger();
   WebAudioUtils::Shutdown();
 
-#ifdef MOZ_WIDGET_GONK
-  nsVolumeService::Shutdown();
-#endif
-
 #ifdef MOZ_WEBSPEECH
   nsSynthVoiceRegistry::Shutdown();
 #endif
diff --git a/security/manager/pki/nsNSSDialogHelper.cpp b/security/manager/pki/nsNSSDialogHelper.cpp
index 1ec161b81..95d02a981 100644
--- a/security/manager/pki/nsNSSDialogHelper.cpp
+++ b/security/manager/pki/nsNSSDialogHelper.cpp
@@ -19,12 +19,6 @@ nsresult
 nsNSSDialogHelper::openDialog(mozIDOMWindowProxy* window, const char* url,
                               nsISupports* params, bool modal)
 {
-#ifdef MOZ_WIDGET_GONK
-  // On b2g devices, we need to proxy the dialog creation & management
-  // to Gaia.
-  return NS_ERROR_NOT_IMPLEMENTED;
-#endif
-
   nsresult rv;
   nsCOMPtr<nsIWindowWatcher> windowWatcher = 
            do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
diff --git a/tools/profiler/core/GeckoSampler.cpp b/tools/profiler/core/GeckoSampler.cpp
index f4249a7a5..4283542f6 100644
--- a/tools/profiler/core/GeckoSampler.cpp
+++ b/tools/profiler/core/GeckoSampler.cpp
@@ -44,7 +44,7 @@
 #include "mozilla/ProfileGatherer.h"
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
   #include "FennecJNIWrappers.h"
 #endif
 
@@ -213,7 +213,7 @@ GeckoSampler::GeckoSampler(double aInterval, int aEntrySize,
   }
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
   mProfileJava = mozilla::jni::IsFennec() &&
       hasFeature(aFeatures, aFeatureCount, "java");
 #else
@@ -462,7 +462,7 @@ void SubProcessCallback(const char* aProfile, void* aClosure)
 }
 
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 static
 void BuildJavaThreadJSObject(SpliceableJSONWriter& aWriter)
 {
@@ -567,7 +567,7 @@ void GeckoSampler::StreamJSON(SpliceableJSONWriter& aWriter, double aSinceTime)
         }
       }
 
-  #if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+  #if defined(SPS_OS_android)
       if (ProfileJava()) {
         java::GeckoJavaSampler::Pause();
 
diff --git a/tools/profiler/core/platform.cpp b/tools/profiler/core/platform.cpp
index 0d3cb1648..a8a09d66f 100644
--- a/tools/profiler/core/platform.cpp
+++ b/tools/profiler/core/platform.cpp
@@ -36,11 +36,11 @@
 #include "GeckoTaskTracer.h"
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
   #include "FennecJNIWrappers.h"
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 #include "FennecJNINatives.h"
 #endif
 
@@ -52,7 +52,7 @@
 #endif
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 class GeckoJavaSampler : public java::GeckoJavaSampler::Natives<GeckoJavaSampler>
 {
 private:
@@ -502,7 +502,7 @@ void mozilla_sampler_init(void* stackTop)
   set_stderr_callback(mozilla_sampler_log);
 #endif
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
   if (mozilla::jni::IsFennec()) {
     GeckoJavaSampler::Init();
   }
@@ -524,7 +524,7 @@ void mozilla_sampler_init(void* stackTop)
     || defined(SPS_PLAT_amd64_linux) || defined(SPS_PLAT_x86_linux)
                          , "stackwalk"
 #endif
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
                          , "java"
 #endif
                          };
@@ -819,7 +819,7 @@ void mozilla_sampler_start(int aProfileEntries, double aInterval,
       }
   }
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
   if (t->ProfileJava()) {
     int javaInterval = aInterval;
     // Java sampling doesn't accuratly keep up with 1ms sampling
@@ -1021,15 +1021,6 @@ bool mozilla_sampler_register_thread(const char* aName, void* aGuessStackTop)
     return false;
   }
 
-#if defined(MOZ_WIDGET_GONK) && !defined(MOZ_PROFILING)
-  // The only way to profile secondary threads on b2g
-  // is to build with profiling OR have the profiler
-  // running on startup.
-  if (!profiler_is_active()) {
-    return false;
-  }
-#endif
-
   MOZ_ASSERT(tlsPseudoStack.get() == nullptr);
   PseudoStack* stack = PseudoStack::create();
   tlsPseudoStack.set(stack);
diff --git a/tools/profiler/core/platform.h b/tools/profiler/core/platform.h
index 2e736d97c..17c8dd25c 100644
--- a/tools/profiler/core/platform.h
+++ b/tools/profiler/core/platform.h
@@ -393,10 +393,7 @@ class Sampler {
   static mozilla::UniquePtr<Mutex> sRegisteredThreadsMutex;
 
   static bool CanNotifyObservers() {
-#ifdef MOZ_WIDGET_GONK
-    // We use profile.sh on b2g to manually select threads and options per process.
-    return false;
-#elif defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
     // Android ANR reporter uses the profiler off the main thread
     return NS_IsMainThread();
 #else
diff --git a/tools/profiler/core/shared-libraries-linux.cc b/tools/profiler/core/shared-libraries-linux.cc
index 24437fb4e..553039fb7 100644
--- a/tools/profiler/core/shared-libraries-linux.cc
+++ b/tools/profiler/core/shared-libraries-linux.cc
@@ -37,7 +37,6 @@ static std::string getId(const char *bin_name)
   return "";
 }
 
-#if !defined(MOZ_WIDGET_GONK)
 // TODO fix me with proper include
 #include "nsDebug.h"
 #ifdef ANDROID
@@ -86,13 +85,10 @@ dl_iterate_callback(struct dl_phdr_info *dl_info, size_t size, void *data)
   return 0;
 }
 
-#endif // !MOZ_WIDGET_GONK
-
 SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
 {
   SharedLibraryInfo info;
 
-#if !defined(MOZ_WIDGET_GONK)
 #ifdef ANDROID
   if (!dl_iterate_phdr) {
     // On ARM Android, dl_iterate_phdr is provided by the custom linker.
@@ -104,9 +100,8 @@ SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
 #endif // ANDROID
 
   dl_iterate_phdr(dl_iterate_callback, &info);
-#endif // !MOZ_WIDGET_GONK
 
-#if defined(ANDROID) || defined(MOZ_WIDGET_GONK)
+#if defined(ANDROID)
   pid_t pid = getpid();
   char path[PATH_MAX];
   snprintf(path, PATH_MAX, "/proc/%d/maps", pid);
@@ -132,19 +127,10 @@ SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
       LOG("Get maps line failed");
       continue;
     }
-#if defined(ANDROID) && !defined(MOZ_WIDGET_GONK)
     // Use proc/pid/maps to get the dalvik-jit section since it has
     // no associated phdrs
     if (strcmp(name, "/dev/ashmem/dalvik-jit-code-cache") != 0)
       continue;
-#else
-    if (strcmp(perm, "r-xp") != 0) {
-      // Ignore entries that are writable and/or shared.
-      // At least one graphics driver uses short-lived "rwxs" mappings
-      // (see bug 926734 comment 5), so just checking for 'x' isn't enough.
-      continue;
-    }
-#endif
     SharedLibrary shlib(start, end, offset, getId(name), name);
     info.AddSharedLibrary(shlib);
     if (count > 10000) {
@@ -153,7 +139,7 @@ SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
     }
     count++;
   }
-#endif // ANDROID || MOZ_WIDGET_GONK
+#endif // ANDROID
 
   return info;
 }
diff --git a/tools/profiler/gecko/SaveProfileTask.cpp b/tools/profiler/gecko/SaveProfileTask.cpp
index 497385355..dbbbe4836 100644
--- a/tools/profiler/gecko/SaveProfileTask.cpp
+++ b/tools/profiler/gecko/SaveProfileTask.cpp
@@ -9,7 +9,7 @@
 nsresult
 SaveProfileTask::Run() {
   // Get file path
-#if defined(SPS_PLAT_arm_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_PLAT_arm_android)
   nsCString tmpPath;
   tmpPath.AppendPrintf("/sdcard/profile_%i_%i.txt", XRE_GetProcessType(), getpid());
 #else
diff --git a/tools/profiler/lul/AutoObjectMapper.cpp b/tools/profiler/lul/AutoObjectMapper.cpp
index a5dc902fd..1bc5ce62a 100644
--- a/tools/profiler/lul/AutoObjectMapper.cpp
+++ b/tools/profiler/lul/AutoObjectMapper.cpp
@@ -16,7 +16,7 @@
 #include "PlatformMacros.h"
 #include "AutoObjectMapper.h"
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 # include <dlfcn.h>
 # include "mozilla/Types.h"
   // FIXME move these out of mozglue/linker/ElfLoader.h into their
@@ -108,7 +108,7 @@ bool AutoObjectMapperPOSIX::Map(/*OUT*/void** start, /*OUT*/size_t* length,
 }
 
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 // A helper function for AutoObjectMapperFaultyLib::Map.  Finds out
 // where the installation's lib directory is, since we'll have to look
 // in there to get hold of libmozglue.so.  Returned C string is heap
@@ -204,4 +204,4 @@ bool AutoObjectMapperFaultyLib::Map(/*OUT*/void** start, /*OUT*/size_t* length,
   }
 }
 
-#endif // defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#endif // defined(SPS_OS_android)
diff --git a/tools/profiler/lul/AutoObjectMapper.h b/tools/profiler/lul/AutoObjectMapper.h
index 1f813d6f2..3f60dc44d 100644
--- a/tools/profiler/lul/AutoObjectMapper.h
+++ b/tools/profiler/lul/AutoObjectMapper.h
@@ -62,7 +62,7 @@ private:
 };
 
 
-#if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#if defined(SPS_OS_android)
 // This is a variant of AutoObjectMapperPOSIX suitable for use in
 // conjunction with faulty.lib on Android.  How it behaves depends on
 // the name of the file to be mapped.  There are three possible cases:
@@ -110,6 +110,6 @@ private:
   void  operator delete[](void*);
 };
 
-#endif // defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#endif // defined(SPS_OS_android)
 
 #endif // AutoObjectMapper_h
diff --git a/tools/profiler/lul/platform-linux-lul.cpp b/tools/profiler/lul/platform-linux-lul.cpp
index 9541534a1..da764f3cf 100644
--- a/tools/profiler/lul/platform-linux-lul.cpp
+++ b/tools/profiler/lul/platform-linux-lul.cpp
@@ -32,7 +32,7 @@ read_procmaps(lul::LUL* aLUL)
   for (size_t i = 0; i < info.GetSize(); i++) {
     const SharedLibrary& lib = info.GetEntry(i);
 
-#   if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
+#   if defined(SPS_OS_android)
     // We're using faulty.lib.  Use a special-case object mapper.
     AutoObjectMapperFaultyLib mapper(aLUL->mLog);
 #   else
diff --git a/tools/profiler/public/GeckoProfilerImpl.h b/tools/profiler/public/GeckoProfilerImpl.h
index a32096b94..7011e5cdb 100644
--- a/tools/profiler/public/GeckoProfilerImpl.h
+++ b/tools/profiler/public/GeckoProfilerImpl.h
@@ -346,13 +346,6 @@ static inline void profiler_tracing(const char* aCategory, const char* aInfo,
 #define PROFILER_MAIN_THREAD_LABEL_PRINTF(name_space, info, category, ...)  MOZ_ASSERT(NS_IsMainThread(), "This can only be called on the main thread"); mozilla::SamplerStackFramePrintfRAII SAMPLER_APPEND_LINE_NUMBER(sampler_raii)(name_space "::" info, category, __LINE__, __VA_ARGS__)
 
 
-/* FIXME/bug 789667: memory constraints wouldn't much of a problem for
- * this small a sample buffer size, except that serializing the
- * profile data is extremely, unnecessarily memory intensive. */
-#ifdef MOZ_WIDGET_GONK
-# define PLATFORM_LIKELY_MEMORY_CONSTRAINED
-#endif
-
 #if !defined(PLATFORM_LIKELY_MEMORY_CONSTRAINED) && !defined(ARCH_ARMV6)
 # define PROFILE_DEFAULT_ENTRY 1000000
 #else
diff --git a/xpcom/base/nsMemoryReporterManager.cpp b/xpcom/base/nsMemoryReporterManager.cpp
index 616eefbdc..7c62e2af5 100644
--- a/xpcom/base/nsMemoryReporterManager.cpp
+++ b/xpcom/base/nsMemoryReporterManager.cpp
@@ -1596,10 +1596,6 @@ nsMemoryReporterManager::~nsMemoryReporterManager()
   NS_ASSERTION(!mSavedWeakReporters, "failed to restore weak reporters");
 }
 
-#ifdef MOZ_WIDGET_GONK
-#define DEBUG_CHILD_PROCESS_MEMORY_REPORTING 1
-#endif
-
 #ifdef DEBUG_CHILD_PROCESS_MEMORY_REPORTING
 #define MEMORY_REPORTING_LOG(format, ...) \
   printf_stderr("++++ MEMORY REPORTING: " format, ##__VA_ARGS__);
diff --git a/xpcom/base/nsSystemInfo.cpp b/xpcom/base/nsSystemInfo.cpp
index a72dd3826..4a92a2eb4 100644
--- a/xpcom/base/nsSystemInfo.cpp
+++ b/xpcom/base/nsSystemInfo.cpp
@@ -50,12 +50,6 @@
 #include "mozilla/dom/ContentChild.h"
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-#include <sys/system_properties.h>
-#include "mozilla/Preferences.h"
-#include "nsPrintfCString.h"
-#endif
-
 #ifdef ANDROID
 extern "C" {
 NS_EXPORT int android_sdk_version;
@@ -747,44 +741,6 @@ nsSystemInfo::Init()
   }
 #endif
 
-#ifdef MOZ_WIDGET_GONK
-  char sdk[PROP_VALUE_MAX];
-  if (__system_property_get("ro.build.version.sdk", sdk)) {
-    android_sdk_version = atoi(sdk);
-    SetPropertyAsInt32(NS_LITERAL_STRING("sdk_version"), android_sdk_version);
-
-    SetPropertyAsACString(NS_LITERAL_STRING("secondaryLibrary"),
-                          nsPrintfCString("SDK %u", android_sdk_version));
-  }
-
-  char characteristics[PROP_VALUE_MAX];
-  if (__system_property_get("ro.build.characteristics", characteristics)) {
-    if (!strcmp(characteristics, "tablet")) {
-      SetPropertyAsBool(NS_LITERAL_STRING("tablet"), true);
-    } else if (!strcmp(characteristics, "tv")) {
-      SetPropertyAsBool(NS_LITERAL_STRING("tv"), true);
-    }
-  }
-
-  nsAutoString str;
-  rv = GetPropertyAsAString(NS_LITERAL_STRING("version"), str);
-  if (NS_SUCCEEDED(rv)) {
-    SetPropertyAsAString(NS_LITERAL_STRING("kernel_version"), str);
-  }
-
-  const nsAdoptingString& b2g_os_name =
-    mozilla::Preferences::GetString("b2g.osName");
-  if (b2g_os_name) {
-    SetPropertyAsAString(NS_LITERAL_STRING("name"), b2g_os_name);
-  }
-
-  const nsAdoptingString& b2g_version =
-    mozilla::Preferences::GetString("b2g.version");
-  if (b2g_version) {
-    SetPropertyAsAString(NS_LITERAL_STRING("version"), b2g_version);
-  }
-#endif
-
   return NS_OK;
 }
 
diff --git a/xpcom/build/BinaryPath.h b/xpcom/build/BinaryPath.h
index 374763c79..53034fcd8 100644
--- a/xpcom/build/BinaryPath.h
+++ b/xpcom/build/BinaryPath.h
@@ -90,11 +90,6 @@ private:
     // On Android, we use the GRE_HOME variable that is set by the Java
     // bootstrap code.
     const char* greHome = getenv("GRE_HOME");
-#if defined(MOZ_WIDGET_GONK)
-    if (!greHome) {
-      greHome = "/system/b2g";
-    }
-#endif
 
     if (!greHome) {
       return NS_ERROR_FAILURE;
diff --git a/xpcom/build/XPCOMInit.cpp b/xpcom/build/XPCOMInit.cpp
index 6fb50fc1d..7b220558f 100644
--- a/xpcom/build/XPCOMInit.cpp
+++ b/xpcom/build/XPCOMInit.cpp
@@ -1104,17 +1104,6 @@ ShutdownXPCOM(nsIServiceManager* aServMgr)
 
   NS_LogTerm();
 
-#if defined(MOZ_WIDGET_GONK)
-  // This _exit(0) call is intended to be temporary, to get shutdown leak
-  // checking working on non-B2G platforms.
-  // On debug B2G, the child process crashes very late.  Instead, just
-  // give up so at least we exit cleanly. See bug 1071866.
-  if (XRE_IsContentProcess()) {
-      NS_WARNING("Exiting child process early!");
-      _exit(0);
-  }
-#endif
-
   return NS_OK;
 }
 
diff --git a/xpcom/build/XREChildData.h b/xpcom/build/XREChildData.h
index 96b297d3c..c849131d6 100644
--- a/xpcom/build/XREChildData.h
+++ b/xpcom/build/XREChildData.h
@@ -20,7 +20,7 @@ class GMPLoader;
  */
 struct XREChildData
 {
-#if !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_GONK)
+#if !defined(MOZ_WIDGET_ANDROID)
   /**
    * Used to load the GMP binary.
    */
diff --git a/xpcom/glue/FileUtils.h b/xpcom/glue/FileUtils.h
index aaf912b21..b808d52e0 100644
--- a/xpcom/glue/FileUtils.h
+++ b/xpcom/glue/FileUtils.h
@@ -161,7 +161,7 @@ void ReadAhead(filedesc_t aFd, const size_t aOffset = 0,
                const size_t aCount = SIZE_MAX);
 
 
-#if defined(MOZ_WIDGET_GONK) || defined(XP_UNIX)
+#if defined(XP_UNIX)
 #define MOZ_TEMP_FAILURE_RETRY(exp) (__extension__({ \
   typeof (exp) _rc; \
   do { \
@@ -171,10 +171,9 @@ void ReadAhead(filedesc_t aFd, const size_t aOffset = 0,
 }))
 #endif
 
-/* Define ReadSysFile() and WriteSysFile() only on GONK to avoid unnecessary
- * libxul bloat. Also define it in debug builds, so that unit tests for it can
- * be written and run in non-GONK builds. */
-#if (defined(MOZ_WIDGET_GONK) || defined(DEBUG)) && defined(XP_UNIX)
+/* Define ReadSysFile() and WriteSysFile() only in debug builds, so that 
+ * unit tests for it can be written and run. */
+#if defined(DEBUG) && defined(XP_UNIX)
 
 #ifndef ReadSysFile_PRESENT
 #define ReadSysFile_PRESENT
@@ -213,7 +212,7 @@ bool ReadSysFile(const char* aFilename, bool* aVal);
 
 bool WriteSysFile(const char* aFilename, const char* aBuf);
 
-#endif /* (MOZ_WIDGET_GONK || DEBUG) && XP_UNIX */
+#endif /* DEBUG && XP_UNIX */
 
 } // namespace mozilla
 
diff --git a/xpcom/threads/ThreadStackHelper.cpp b/xpcom/threads/ThreadStackHelper.cpp
index d31bf6359..1713c9194 100644
--- a/xpcom/threads/ThreadStackHelper.cpp
+++ b/xpcom/threads/ThreadStackHelper.cpp
@@ -359,11 +359,6 @@ ThreadStackHelper::PrepareStackBuffer(Stack& aStack)
      profiler_register_thread). However, on B2G, profiling secondary threads
      may be disabled despite profiler being enabled. This is by-design and
      is not an error. */
-#ifdef MOZ_WIDGET_GONK
-  if (!mPseudoStack) {
-    return false;
-  }
-#endif
   MOZ_ASSERT(mPseudoStack);
   if (!aStack.reserve(mMaxStackSize) ||
       !aStack.reserve(aStack.capacity()) || // reserve up to the capacity