Add m-esr52 at 52.6.0

1 files changed, 3894 insertions, 0 deletions

diff --git a/dom/plugins/base/nsPluginInstanceOwner.cpp b/dom/plugins/base/nsPluginInstanceOwner.cpp
new file mode 100644
index 000000000..b7651be1a
--- /dev/null
+++ b/dom/plugins/base/nsPluginInstanceOwner.cpp
@@ -0,0 +1,3894 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:set ts=2 sts=2 sw=2 et cin:
+/* 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/. */
+
+#ifdef MOZ_X11
+#include <cairo-xlib.h>
+#include "gfxXlibSurface.h"
+/* X headers suck */
+enum { XKeyPress = KeyPress };
+#include "mozilla/X11Util.h"
+using mozilla::DefaultXDisplay;
+#endif
+
+#include "nsPluginInstanceOwner.h"
+
+#include "gfxUtils.h"
+#include "nsIRunnable.h"
+#include "nsContentUtils.h"
+#include "nsRect.h"
+#include "nsSize.h"
+#include "nsDisplayList.h"
+#include "ImageLayers.h"
+#include "GLImages.h"
+#include "nsPluginFrame.h"
+#include "nsIPluginDocument.h"
+#include "nsIStringStream.h"
+#include "nsNetUtil.h"
+#include "mozilla/Preferences.h"
+#include "nsILinkHandler.h"
+#include "nsIDocShellTreeItem.h"
+#include "nsIWebBrowserChrome.h"
+#include "nsLayoutUtils.h"
+#include "nsIPluginWidget.h"
+#include "nsViewManager.h"
+#include "nsIDocShellTreeOwner.h"
+#include "nsIDOMHTMLObjectElement.h"
+#include "nsIAppShell.h"
+#include "nsIDOMHTMLAppletElement.h"
+#include "nsIObjectLoadingContent.h"
+#include "nsObjectLoadingContent.h"
+#include "nsAttrName.h"
+#include "nsIFocusManager.h"
+#include "nsFocusManager.h"
+#include "nsIDOMDragEvent.h"
+#include "nsIScriptSecurityManager.h"
+#include "nsIScrollableFrame.h"
+#include "nsIDocShell.h"
+#include "ImageContainer.h"
+#include "nsIDOMHTMLCollection.h"
+#include "GLContext.h"
+#include "EGLUtils.h"
+#include "nsIContentInlines.h"
+#include "mozilla/MiscEvents.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/HTMLObjectElementBinding.h"
+#include "mozilla/dom/TabChild.h"
+#include "nsFrameSelection.h"
+#include "PuppetWidget.h"
+#include "nsPIWindowRoot.h"
+#include "mozilla/IMEStateManager.h"
+#include "mozilla/TextComposition.h"
+#include "mozilla/AutoRestore.h"
+
+#include "nsContentCID.h"
+#include "nsWidgetsCID.h"
+static NS_DEFINE_CID(kWidgetCID, NS_CHILD_CID);
+static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
+
+#ifdef XP_WIN
+#include <wtypes.h>
+#include <winuser.h>
+#include "mozilla/widget/WinMessages.h"
+#endif // #ifdef XP_WIN
+
+#ifdef XP_MACOSX
+#include "ComplexTextInputPanel.h"
+#include "nsIDOMXULDocument.h"
+#include "nsIDOMXULCommandDispatcher.h"
+#endif
+
+#ifdef MOZ_WIDGET_GTK
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+#include "ANPBase.h"
+#include "AndroidBridge.h"
+#include "ClientLayerManager.h"
+#include "nsWindow.h"
+
+static nsPluginInstanceOwner* sFullScreenInstance = nullptr;
+
+using namespace mozilla::dom;
+
+#include <android/log.h>
+#define LOG(args...)  __android_log_print(ANDROID_LOG_INFO, "GeckoPlugins" , ## args)
+#endif
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::layers;
+
+static inline nsPoint AsNsPoint(const nsIntPoint &p) {
+  return nsPoint(p.x, p.y);
+}
+
+// special class for handeling DOM context menu events because for
+// some reason it starves other mouse events if implemented on the
+// same class
+class nsPluginDOMContextMenuListener : public nsIDOMEventListener
+{
+  virtual ~nsPluginDOMContextMenuListener();
+
+public:
+  explicit nsPluginDOMContextMenuListener(nsIContent* aContent);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDOMEVENTLISTENER
+
+  void Destroy(nsIContent* aContent);
+
+  nsEventStatus ProcessEvent(const WidgetGUIEvent& anEvent)
+  {
+    return nsEventStatus_eConsumeNoDefault;
+  }
+};
+
+class AsyncPaintWaitEvent : public Runnable
+{
+public:
+  AsyncPaintWaitEvent(nsIContent* aContent, bool aFinished) :
+    mContent(aContent), mFinished(aFinished)
+  {
+  }
+
+  NS_IMETHOD Run() override
+  {
+    nsContentUtils::DispatchTrustedEvent(mContent->OwnerDoc(), mContent,
+        mFinished ? NS_LITERAL_STRING("MozPaintWaitFinished") : NS_LITERAL_STRING("MozPaintWait"),
+        true, true);
+    return NS_OK;
+  }
+
+private:
+  nsCOMPtr<nsIContent> mContent;
+  bool                 mFinished;
+};
+
+void
+nsPluginInstanceOwner::NotifyPaintWaiter(nsDisplayListBuilder* aBuilder)
+{
+  // This is notification for reftests about async plugin paint start
+  if (!mWaitingForPaint && !IsUpToDate() && aBuilder->ShouldSyncDecodeImages()) {
+    nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+    nsCOMPtr<nsIRunnable> event = new AsyncPaintWaitEvent(content, false);
+    // Run this event as soon as it's safe to do so, since listeners need to
+    // receive it immediately
+    nsContentUtils::AddScriptRunner(event);
+    mWaitingForPaint = true;
+  }
+}
+
+#if MOZ_WIDGET_ANDROID
+static void
+AttachToContainerAsSurfaceTexture(ImageContainer* container,
+                                  nsNPAPIPluginInstance* instance,
+                                  const LayoutDeviceRect& rect,
+                                  RefPtr<Image>* out_image)
+{
+  MOZ_ASSERT(out_image);
+  MOZ_ASSERT(!*out_image);
+
+  mozilla::gl::AndroidSurfaceTexture* surfTex = instance->AsSurfaceTexture();
+  if (!surfTex) {
+    return;
+  }
+
+  RefPtr<Image> img = new SurfaceTextureImage(
+    surfTex,
+    gfx::IntSize::Truncate(rect.width, rect.height),
+    instance->OriginPos());
+  *out_image = img;
+}
+#endif
+
+bool
+nsPluginInstanceOwner::NeedsScrollImageLayer()
+{
+#if defined(XP_WIN)
+  // If this is a windowed plugin and we're doing layout in the content
+  // process, force the creation of an image layer for the plugin. We'll
+  // paint to this when scrolling.
+  return XRE_IsContentProcess() &&
+         mPluginWindow &&
+         mPluginWindow->type == NPWindowTypeWindow;
+#else
+  return false;
+#endif
+}
+
+already_AddRefed<ImageContainer>
+nsPluginInstanceOwner::GetImageContainer()
+{
+  if (!mInstance)
+    return nullptr;
+
+  RefPtr<ImageContainer> container;
+
+#if MOZ_WIDGET_ANDROID
+  LayoutDeviceRect r = GetPluginRect();
+
+  // NotifySize() causes Flash to do a bunch of stuff like ask for surfaces to render
+  // into, set y-flip flags, etc, so we do this at the beginning.
+  float resolution = mPluginFrame->PresContext()->PresShell()->GetCumulativeResolution();
+  ScreenSize screenSize = (r * LayoutDeviceToScreenScale(resolution)).Size();
+  mInstance->NotifySize(nsIntSize::Truncate(screenSize.width, screenSize.height));
+
+  container = LayerManager::CreateImageContainer();
+
+  if (r.width && r.height) {
+    // Try to get it as an EGLImage first.
+    RefPtr<Image> img;
+    AttachToContainerAsSurfaceTexture(container, mInstance, r, &img);
+
+    if (img) {
+      container->SetCurrentImageInTransaction(img);
+    }
+  }
+#else
+  if (NeedsScrollImageLayer()) {
+    // windowed plugin under e10s
+#if defined(XP_WIN)
+    mInstance->GetScrollCaptureContainer(getter_AddRefs(container));
+#endif
+  } else {
+    // async windowless rendering
+    mInstance->GetImageContainer(getter_AddRefs(container));
+  }
+#endif
+
+  return container.forget();
+}
+
+void
+nsPluginInstanceOwner::DidComposite()
+{
+  if (mInstance) {
+    mInstance->DidComposite();
+  }
+}
+
+void
+nsPluginInstanceOwner::SetBackgroundUnknown()
+{
+  if (mInstance) {
+    mInstance->SetBackgroundUnknown();
+  }
+}
+
+already_AddRefed<mozilla::gfx::DrawTarget>
+nsPluginInstanceOwner::BeginUpdateBackground(const nsIntRect& aRect)
+{
+  nsIntRect rect = aRect;
+  RefPtr<DrawTarget> dt;
+  if (mInstance &&
+      NS_SUCCEEDED(mInstance->BeginUpdateBackground(&rect, getter_AddRefs(dt)))) {
+    return dt.forget();
+  }
+  return nullptr;
+}
+
+void
+nsPluginInstanceOwner::EndUpdateBackground(const nsIntRect& aRect)
+{
+  nsIntRect rect = aRect;
+  if (mInstance) {
+    mInstance->EndUpdateBackground(&rect);
+  }
+}
+
+bool
+nsPluginInstanceOwner::UseAsyncRendering()
+{
+#ifdef XP_MACOSX
+  if (mUseAsyncRendering) {
+    return true;
+  }
+#endif
+
+  bool isOOP;
+  bool result = (mInstance &&
+          NS_SUCCEEDED(mInstance->GetIsOOP(&isOOP)) && isOOP
+#ifndef XP_MACOSX
+          && (!mPluginWindow ||
+           mPluginWindow->type == NPWindowTypeDrawable)
+#endif
+          );
+
+#ifdef XP_MACOSX
+  if (result) {
+    mUseAsyncRendering = true;
+  }
+#endif
+
+  return result;
+}
+
+nsIntSize
+nsPluginInstanceOwner::GetCurrentImageSize()
+{
+  nsIntSize size(0,0);
+  if (mInstance) {
+    mInstance->GetImageSize(&size);
+  }
+  return size;
+}
+
+nsPluginInstanceOwner::nsPluginInstanceOwner()
+  : mPluginWindow(nullptr)
+{
+  // create nsPluginNativeWindow object, it is derived from NPWindow
+  // struct and allows to manipulate native window procedure
+  nsCOMPtr<nsIPluginHost> pluginHostCOM = do_GetService(MOZ_PLUGIN_HOST_CONTRACTID);
+  mPluginHost = static_cast<nsPluginHost*>(pluginHostCOM.get());
+  if (mPluginHost)
+    mPluginHost->NewPluginNativeWindow(&mPluginWindow);
+
+  mPluginFrame = nullptr;
+  mWidgetCreationComplete = false;
+#ifdef XP_MACOSX
+  mSentInitialTopLevelWindowEvent = false;
+  mLastWindowIsActive = false;
+  mLastContentFocused = false;
+  mLastScaleFactor = 1.0;
+  mShouldBlurOnActivate = false;
+#endif
+  mLastCSSZoomFactor = 1.0;
+  mContentFocused = false;
+  mWidgetVisible = true;
+  mPluginWindowVisible = false;
+  mPluginDocumentActiveState = true;
+  mLastMouseDownButtonType = -1;
+
+#ifdef XP_MACOSX
+#ifndef NP_NO_CARBON
+  // We don't support Carbon, but it is still the default model for i386 NPAPI.
+  mEventModel = NPEventModelCarbon;
+#else
+  mEventModel = NPEventModelCocoa;
+#endif
+  mUseAsyncRendering = false;
+#endif
+
+  mWaitingForPaint = false;
+
+#ifdef MOZ_WIDGET_ANDROID
+  mFullScreen = false;
+  mJavaView = nullptr;
+#endif
+
+#ifdef XP_WIN
+  mGotCompositionData = false;
+  mSentStartComposition = false;
+  mPluginDidNotHandleIMEComposition = false;
+#endif
+}
+
+nsPluginInstanceOwner::~nsPluginInstanceOwner()
+{
+  if (mWaitingForPaint) {
+    nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+    if (content) {
+      // We don't care when the event is dispatched as long as it's "soon",
+      // since whoever needs it will be waiting for it.
+      nsCOMPtr<nsIRunnable> event = new AsyncPaintWaitEvent(content, true);
+      NS_DispatchToMainThread(event);
+    }
+  }
+
+  mPluginFrame = nullptr;
+
+  PLUG_DeletePluginNativeWindow(mPluginWindow);
+  mPluginWindow = nullptr;
+
+#ifdef MOZ_WIDGET_ANDROID
+  RemovePluginView();
+#endif
+
+  if (mInstance) {
+    mInstance->SetOwner(nullptr);
+  }
+}
+
+NS_IMPL_ISUPPORTS(nsPluginInstanceOwner,
+                  nsIPluginInstanceOwner,
+                  nsIDOMEventListener,
+                  nsIPrivacyTransitionObserver,
+                  nsIKeyEventInPluginCallback,
+                  nsISupportsWeakReference)
+
+nsresult
+nsPluginInstanceOwner::SetInstance(nsNPAPIPluginInstance *aInstance)
+{
+  NS_ASSERTION(!mInstance || !aInstance, "mInstance should only be set or unset!");
+
+  // If we're going to null out mInstance after use, be sure to call
+  // mInstance->SetOwner(nullptr) here, since it now won't be called
+  // from our destructor.  This fixes bug 613376.
+  if (mInstance && !aInstance) {
+    mInstance->SetOwner(nullptr);
+
+#ifdef MOZ_WIDGET_ANDROID
+    RemovePluginView();
+#endif
+  }
+
+  mInstance = aInstance;
+
+  nsCOMPtr<nsIDocument> doc;
+  GetDocument(getter_AddRefs(doc));
+  if (doc) {
+    if (nsCOMPtr<nsPIDOMWindowOuter> domWindow = doc->GetWindow()) {
+      nsCOMPtr<nsIDocShell> docShell = domWindow->GetDocShell();
+      if (docShell)
+        docShell->AddWeakPrivacyTransitionObserver(this);
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetWindow(NPWindow *&aWindow)
+{
+  NS_ASSERTION(mPluginWindow, "the plugin window object being returned is null");
+  aWindow = mPluginWindow;
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetMode(int32_t *aMode)
+{
+  nsCOMPtr<nsIDocument> doc;
+  nsresult rv = GetDocument(getter_AddRefs(doc));
+  nsCOMPtr<nsIPluginDocument> pDoc (do_QueryInterface(doc));
+
+  if (pDoc) {
+    *aMode = NP_FULL;
+  } else {
+    *aMode = NP_EMBED;
+  }
+
+  return rv;
+}
+
+void nsPluginInstanceOwner::GetAttributes(nsTArray<MozPluginParameter>& attributes)
+{
+  nsCOMPtr<nsIObjectLoadingContent> content = do_QueryReferent(mContent);
+  nsObjectLoadingContent *loadingContent =
+    static_cast<nsObjectLoadingContent*>(content.get());
+
+  loadingContent->GetPluginAttributes(attributes);
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetDOMElement(nsIDOMElement* *result)
+{
+  return CallQueryReferent(mContent.get(), result);
+}
+
+nsresult nsPluginInstanceOwner::GetInstance(nsNPAPIPluginInstance **aInstance)
+{
+  NS_ENSURE_ARG_POINTER(aInstance);
+
+  *aInstance = mInstance;
+  NS_IF_ADDREF(*aInstance);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetURL(const char *aURL,
+                                            const char *aTarget,
+                                            nsIInputStream *aPostStream,
+                                            void *aHeadersData,
+                                            uint32_t aHeadersDataLen,
+                                            bool aDoCheckLoadURIChecks)
+{
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  if (!content) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  if (content->IsEditable()) {
+    return NS_OK;
+  }
+
+  nsIDocument *doc = content->GetUncomposedDoc();
+  if (!doc) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsIPresShell *presShell = doc->GetShell();
+  if (!presShell) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsPresContext *presContext = presShell->GetPresContext();
+  if (!presContext) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // the container of the pres context will give us the link handler
+  nsCOMPtr<nsISupports> container = presContext->GetContainerWeak();
+  NS_ENSURE_TRUE(container,NS_ERROR_FAILURE);
+  nsCOMPtr<nsILinkHandler> lh = do_QueryInterface(container);
+  NS_ENSURE_TRUE(lh, NS_ERROR_FAILURE);
+
+  nsAutoString unitarget;
+  if ((0 == PL_strcmp(aTarget, "newwindow")) ||
+      (0 == PL_strcmp(aTarget, "_new"))) {
+    unitarget.AssignASCII("_blank");
+  }
+  else if (0 == PL_strcmp(aTarget, "_current")) {
+    unitarget.AssignASCII("_self");
+  }
+  else {
+    unitarget.AssignASCII(aTarget); // XXX could this be nonascii?
+  }
+
+  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
+
+  // Create an absolute URL
+  nsCOMPtr<nsIURI> uri;
+  nsresult rv = NS_NewURI(getter_AddRefs(uri), aURL, baseURI);
+  NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
+
+  if (aDoCheckLoadURIChecks) {
+    nsCOMPtr<nsIScriptSecurityManager> secMan(
+      do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv));
+    NS_ENSURE_TRUE(secMan, NS_ERROR_FAILURE);
+
+    rv = secMan->CheckLoadURIWithPrincipal(content->NodePrincipal(), uri,
+                                           nsIScriptSecurityManager::STANDARD);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  nsCOMPtr<nsIInputStream> headersDataStream;
+  if (aPostStream && aHeadersData) {
+    if (!aHeadersDataLen)
+      return NS_ERROR_UNEXPECTED;
+
+    nsCOMPtr<nsIStringInputStream> sis = do_CreateInstance("@mozilla.org/io/string-input-stream;1");
+    if (!sis)
+      return NS_ERROR_OUT_OF_MEMORY;
+
+    rv = sis->SetData((char *)aHeadersData, aHeadersDataLen);
+    NS_ENSURE_SUCCESS(rv, rv);
+    headersDataStream = do_QueryInterface(sis);
+  }
+
+  int32_t blockPopups =
+    Preferences::GetInt("privacy.popups.disable_from_plugins");
+  nsAutoPopupStatePusher popupStatePusher((PopupControlState)blockPopups);
+
+  rv = lh->OnLinkClick(content, uri, unitarget.get(), NullString(),
+                       aPostStream, headersDataStream, true);
+
+  return rv;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetDocument(nsIDocument* *aDocument)
+{
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  if (!aDocument || !content) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  // XXX sXBL/XBL2 issue: current doc or owner doc?
+  // But keep in mind bug 322414 comment 33
+  NS_IF_ADDREF(*aDocument = content->OwnerDoc());
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::InvalidateRect(NPRect *invalidRect)
+{
+  // If our object frame has gone away, we won't be able to determine
+  // up-to-date-ness, so just fire off the event.
+  if (mWaitingForPaint && (!mPluginFrame || IsUpToDate())) {
+    nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+    // We don't care when the event is dispatched as long as it's "soon",
+    // since whoever needs it will be waiting for it.
+    nsCOMPtr<nsIRunnable> event = new AsyncPaintWaitEvent(content, true);
+    NS_DispatchToMainThread(event);
+    mWaitingForPaint = false;
+  }
+
+  if (!mPluginFrame || !invalidRect || !mWidgetVisible)
+    return NS_ERROR_FAILURE;
+
+#if defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID)
+  // Each time an asynchronously-drawing plugin sends a new surface to display,
+  // the image in the ImageContainer is updated and InvalidateRect is called.
+  // There are different side effects for (sync) Android plugins.
+  RefPtr<ImageContainer> container;
+  mInstance->GetImageContainer(getter_AddRefs(container));
+#endif
+
+#ifndef XP_MACOSX
+  // Silverlight calls invalidate for windowed plugins so this needs to work.
+  if (mWidget) {
+    mWidget->Invalidate(
+      LayoutDeviceIntRect(invalidRect->left, invalidRect->top,
+                          invalidRect->right - invalidRect->left,
+                          invalidRect->bottom - invalidRect->top));
+    // Plugin instances also call invalidate when plugin windows are hidden
+    // during scrolling. In this case fall through so we invalidate the
+    // underlying layer.
+    if (!NeedsScrollImageLayer()) {
+      return NS_OK;
+    }
+  }
+#endif
+  nsIntRect rect(invalidRect->left,
+                 invalidRect->top,
+                 invalidRect->right - invalidRect->left,
+                 invalidRect->bottom - invalidRect->top);
+  // invalidRect is in "display pixels".  In non-HiDPI modes "display pixels"
+  // are device pixels.  But in HiDPI modes each display pixel corresponds
+  // to more than one device pixel.
+  double scaleFactor = 1.0;
+  GetContentsScaleFactor(&scaleFactor);
+  rect.ScaleRoundOut(scaleFactor);
+  mPluginFrame->InvalidateLayer(nsDisplayItem::TYPE_PLUGIN, &rect);
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::InvalidateRegion(NPRegion invalidRegion)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsPluginInstanceOwner::RedrawPlugin()
+{
+  if (mPluginFrame) {
+    mPluginFrame->InvalidateLayer(nsDisplayItem::TYPE_PLUGIN);
+  }
+  return NS_OK;
+}
+
+#if defined(XP_WIN)
+nsIWidget*
+nsPluginInstanceOwner::GetContainingWidgetIfOffset()
+{
+  MOZ_ASSERT(mPluginFrame, "Caller should have checked for null mPluginFrame.");
+
+  // This property is provided to allow a "windowless" plugin to determine the window it is drawing
+  // in, so it can translate mouse coordinates it receives directly from the operating system
+  // to coordinates relative to itself.
+
+  // The original code returns the document's window, which is OK if the window the "windowless" plugin
+  // is drawing into has the same origin as the document's window, but this is not the case for "windowless" plugins inside of scrolling DIVs etc
+
+  // To make sure "windowless" plugins always get the right origin for translating mouse coordinates, this code
+  // determines the window handle of the mozilla window containing the "windowless" plugin.
+
+  // Given that this HWND may not be that of the document's window, there is a slight risk
+  // of confusing a plugin that is using this HWND for illicit purposes, but since the documentation
+  // does not suggest this HWND IS that of the document window, rather that of the window
+  // the plugin is drawn in, this seems like a safe fix.
+
+  // we only attempt to get the nearest window if this really is a "windowless" plugin so as not
+  // to change any behaviour for the much more common windowed plugins,
+  // though why this method would even be being called for a windowed plugin escapes me.
+  if (!XRE_IsContentProcess() &&
+      mPluginWindow && mPluginWindow->type == NPWindowTypeDrawable) {
+    // it turns out that flash also uses this window for determining focus, and is currently
+    // unable to show a caret correctly if we return the enclosing window. Therefore for
+    // now we only return the enclosing window when there is an actual offset which
+    // would otherwise cause coordinates to be offset incorrectly. (i.e.
+    // if the enclosing window if offset from the document window)
+    //
+    // fixing both the caret and ability to interact issues for a windowless control in a non document aligned windw
+    // does not seem to be possible without a change to the flash plugin
+
+    nsIWidget* win = mPluginFrame->GetNearestWidget();
+    if (win) {
+      nsView *view = nsView::GetViewFor(win);
+      NS_ASSERTION(view, "No view for widget");
+      nsPoint offset = view->GetOffsetTo(nullptr);
+
+      if (offset.x || offset.y) {
+        // in the case the two windows are offset from eachother, we do go ahead and return the correct enclosing window
+        // so that mouse co-ordinates are not messed up.
+        return win;
+      }
+    }
+  }
+
+  return nullptr;
+}
+
+static already_AddRefed<nsIWidget>
+GetRootWidgetForPluginFrame(const nsPluginFrame* aPluginFrame)
+{
+  MOZ_ASSERT(aPluginFrame);
+
+  nsViewManager* vm =
+    aPluginFrame->PresContext()->GetPresShell()->GetViewManager();
+  if (!vm) {
+    NS_WARNING("Could not find view manager for plugin frame.");
+    return nullptr;
+  }
+
+  nsCOMPtr<nsIWidget> rootWidget;
+  vm->GetRootWidget(getter_AddRefs(rootWidget));
+  return rootWidget.forget();
+}
+#endif
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetNetscapeWindow(void *value)
+{
+  if (!mPluginFrame) {
+    NS_WARNING("plugin owner has no owner in getting doc's window handle");
+    return NS_ERROR_FAILURE;
+  }
+
+#if defined(XP_WIN)
+  void** pvalue = (void**)value;
+  nsIWidget* offsetContainingWidget = GetContainingWidgetIfOffset();
+  if (offsetContainingWidget) {
+    *pvalue = (void*)offsetContainingWidget->GetNativeData(NS_NATIVE_WINDOW);
+    if (*pvalue) {
+      return NS_OK;
+    }
+  }
+
+  // simply return the topmost document window
+  nsCOMPtr<nsIWidget> widget = GetRootWidgetForPluginFrame(mPluginFrame);
+  if (widget) {
+    *pvalue = widget->GetNativeData(NS_NATIVE_SHAREABLE_WINDOW);
+  } else {
+    NS_ASSERTION(widget, "couldn't get doc's widget in getting doc's window handle");
+  }
+
+  return NS_OK;
+#elif defined(MOZ_WIDGET_GTK) && defined(MOZ_X11)
+  // X11 window managers want the toplevel window for WM_TRANSIENT_FOR.
+  nsIWidget* win = mPluginFrame->GetNearestWidget();
+  if (!win)
+    return NS_ERROR_FAILURE;
+  *static_cast<Window*>(value) = (long unsigned int)win->GetNativeData(NS_NATIVE_SHAREABLE_WINDOW);
+  return NS_OK;
+#else
+  return NS_ERROR_NOT_IMPLEMENTED;
+#endif
+}
+
+#if defined(XP_WIN)
+void
+nsPluginInstanceOwner::SetWidgetWindowAsParent(HWND aWindowToAdopt)
+{
+  if (!mWidget) {
+    NS_ERROR("mWidget should exist before this gets called.");
+    return;
+  }
+
+  mWidget->SetNativeData(NS_NATIVE_CHILD_WINDOW,
+                         reinterpret_cast<uintptr_t>(aWindowToAdopt));
+}
+
+nsresult
+nsPluginInstanceOwner::SetNetscapeWindowAsParent(HWND aWindowToAdopt)
+{
+  if (!mPluginFrame) {
+    NS_WARNING("Plugin owner has no plugin frame.");
+    return NS_ERROR_FAILURE;
+  }
+
+  // If there is a containing window that is offset then ask that to adopt.
+  nsIWidget* offsetWidget = GetContainingWidgetIfOffset();
+  if (offsetWidget) {
+    offsetWidget->SetNativeData(NS_NATIVE_CHILD_WINDOW,
+                                reinterpret_cast<uintptr_t>(aWindowToAdopt));
+    return NS_OK;
+  }
+
+  // Otherwise ask the topmost document window to adopt.
+  nsCOMPtr<nsIWidget> rootWidget = GetRootWidgetForPluginFrame(mPluginFrame);
+  if (!rootWidget) {
+    NS_ASSERTION(rootWidget, "Couldn't get topmost document's widget.");
+    return NS_ERROR_FAILURE;
+  }
+
+  rootWidget->SetNativeData(NS_NATIVE_CHILD_OF_SHAREABLE_WINDOW,
+                            reinterpret_cast<uintptr_t>(aWindowToAdopt));
+  return NS_OK;
+}
+
+bool
+nsPluginInstanceOwner::GetCompositionString(uint32_t aType,
+                                            nsTArray<uint8_t>* aDist,
+                                            int32_t* aLength)
+{
+  // Mark pkugin calls ImmGetCompositionStringW correctly
+  mGotCompositionData = true;
+
+  RefPtr<TextComposition> composition = GetTextComposition();
+  if (NS_WARN_IF(!composition)) {
+    return false;
+  }
+
+  switch(aType) {
+    case GCS_COMPSTR: {
+      if (!composition->IsComposing()) {
+        *aLength = 0;
+        return true;
+      }
+
+      uint32_t len = composition->LastData().Length() * sizeof(char16_t);
+      if (len) {
+        aDist->SetLength(len);
+        memcpy(aDist->Elements(), composition->LastData().get(), len);
+      }
+      *aLength = len;
+      return true;
+    }
+
+    case GCS_RESULTSTR: {
+      if (composition->IsComposing()) {
+        *aLength = 0;
+        return true;
+      }
+
+      uint32_t len = composition->LastData().Length() * sizeof(char16_t);
+      if (len) {
+        aDist->SetLength(len);
+        memcpy(aDist->Elements(), composition->LastData().get(), len);
+      }
+      *aLength = len;
+      return true;
+    }
+
+    case GCS_CURSORPOS: {
+      *aLength = 0;
+      TextRangeArray* ranges = composition->GetLastRanges();
+      if (!ranges) {
+        return true;
+      }
+      *aLength = ranges->GetCaretPosition();
+      if (*aLength < 0) {
+        return false;
+      }
+      return true;
+    }
+
+    case GCS_COMPATTR: {
+      TextRangeArray* ranges = composition->GetLastRanges();
+      if (!ranges || ranges->IsEmpty()) {
+        *aLength = 0;
+        return true;
+      }
+
+      aDist->SetLength(composition->LastData().Length());
+      memset(aDist->Elements(), ATTR_INPUT, aDist->Length());
+
+      for (TextRange& range : *ranges) {
+        uint8_t type = ATTR_INPUT;
+        switch(range.mRangeType) {
+          case TextRangeType::eRawClause:
+            type = ATTR_INPUT;
+            break;
+          case TextRangeType::eSelectedRawClause:
+            type = ATTR_TARGET_NOTCONVERTED;
+            break;
+          case TextRangeType::eConvertedClause:
+            type = ATTR_CONVERTED;
+            break;
+          case TextRangeType::eSelectedClause:
+            type = ATTR_TARGET_CONVERTED;
+            break;
+          default:
+            continue;
+        }
+
+        size_t minLen = std::min<size_t>(range.mEndOffset, aDist->Length());
+        for (size_t i = range.mStartOffset; i < minLen; i++) {
+          (*aDist)[i] = type;
+        }
+      }
+      *aLength = aDist->Length();
+      return true;
+    }
+
+    case GCS_COMPCLAUSE: {
+      RefPtr<TextRangeArray> ranges = composition->GetLastRanges();
+      if (!ranges || ranges->IsEmpty()) {
+        aDist->SetLength(sizeof(uint32_t));
+        memset(aDist->Elements(), 0, sizeof(uint32_t));
+        *aLength = aDist->Length();
+        return true;
+      }
+      AutoTArray<uint32_t, 16> clauses;
+      clauses.AppendElement(0);
+      for (TextRange& range : *ranges) {
+        if (!range.IsClause()) {
+          continue;
+        }
+        clauses.AppendElement(range.mEndOffset);
+      }
+
+      aDist->SetLength(clauses.Length() * sizeof(uint32_t));
+      memcpy(aDist->Elements(), clauses.Elements(), aDist->Length());
+      *aLength = aDist->Length();
+      return true;
+    }
+
+    case GCS_RESULTREADSTR: {
+      // When returning error causes unexpected error, so we return 0 instead.
+      *aLength = 0;
+      return true;
+    }
+
+    case GCS_RESULTCLAUSE: {
+      // When returning error causes unexpected error, so we return 0 instead.
+      *aLength = 0;
+      return true;
+    }
+
+    default:
+      NS_WARNING(
+        nsPrintfCString("Unsupported type %x of ImmGetCompositionStringW hook",
+                        aType).get());
+      break;
+  }
+
+  return false;
+}
+
+bool
+nsPluginInstanceOwner::SetCandidateWindow(
+    const widget::CandidateWindowPosition& aPosition)
+{
+  if (NS_WARN_IF(!mPluginFrame)) {
+    return false;
+  }
+
+  nsCOMPtr<nsIWidget> widget = GetContainingWidgetIfOffset();
+  if (!widget) {
+    widget = GetRootWidgetForPluginFrame(mPluginFrame);
+    if (NS_WARN_IF(!widget)) {
+      return false;
+    }
+  }
+
+  widget->SetCandidateWindowForPlugin(aPosition);
+  return true;
+}
+
+bool
+nsPluginInstanceOwner::RequestCommitOrCancel(bool aCommitted)
+{
+  nsCOMPtr<nsIWidget> widget = GetContainingWidgetIfOffset();
+  if (!widget) {
+    widget = GetRootWidgetForPluginFrame(mPluginFrame);
+    if (NS_WARN_IF(!widget)) {
+      return false;
+    }
+  }
+
+  if (aCommitted) {
+    widget->NotifyIME(widget::REQUEST_TO_COMMIT_COMPOSITION);
+  } else {
+    widget->NotifyIME(widget::REQUEST_TO_CANCEL_COMPOSITION);
+  }
+  return true;
+}
+
+#endif // #ifdef XP_WIN
+
+void
+nsPluginInstanceOwner::HandledWindowedPluginKeyEvent(
+                         const NativeEventData& aKeyEventData,
+                         bool aIsConsumed)
+{
+  if (NS_WARN_IF(!mInstance)) {
+    return;
+  }
+  DebugOnly<nsresult> rv =
+    mInstance->HandledWindowedPluginKeyEvent(aKeyEventData, aIsConsumed);
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "HandledWindowedPluginKeyEvent fail");
+}
+
+void
+nsPluginInstanceOwner::OnWindowedPluginKeyEvent(
+                         const NativeEventData& aKeyEventData)
+{
+  if (NS_WARN_IF(!mPluginFrame)) {
+    // Notifies the plugin process of the key event being not consumed by us.
+    HandledWindowedPluginKeyEvent(aKeyEventData, false);
+    return;
+  }
+
+  nsCOMPtr<nsIWidget> widget = mPluginFrame->PresContext()->GetRootWidget();
+  if (NS_WARN_IF(!widget)) {
+    // Notifies the plugin process of the key event being not consumed by us.
+    HandledWindowedPluginKeyEvent(aKeyEventData, false);
+    return;
+  }
+
+  nsresult rv = widget->OnWindowedPluginKeyEvent(aKeyEventData, this);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    // Notifies the plugin process of the key event being not consumed by us.
+    HandledWindowedPluginKeyEvent(aKeyEventData, false);
+    return;
+  }
+
+  // If the key event is posted to another process, we need to wait a call
+  // of HandledWindowedPluginKeyEvent().  So, nothing to do here in this case.
+  if (rv == NS_SUCCESS_EVENT_HANDLED_ASYNCHRONOUSLY) {
+    return;
+  }
+
+  // Otherwise, the key event is handled synchronously.  Let's notify the
+  // plugin process of the key event's result.
+  bool consumed = (rv == NS_SUCCESS_EVENT_CONSUMED);
+  HandledWindowedPluginKeyEvent(aKeyEventData, consumed);
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::SetEventModel(int32_t eventModel)
+{
+#ifdef XP_MACOSX
+  mEventModel = static_cast<NPEventModel>(eventModel);
+  return NS_OK;
+#else
+  return NS_ERROR_NOT_IMPLEMENTED;
+#endif
+}
+
+#ifdef XP_MACOSX
+NPBool nsPluginInstanceOwner::ConvertPointPuppet(PuppetWidget *widget,
+                                                 nsPluginFrame* pluginFrame,
+                                                 double sourceX, double sourceY,
+                                                 NPCoordinateSpace sourceSpace,
+                                                 double *destX, double *destY,
+                                                 NPCoordinateSpace destSpace)
+{
+  NS_ENSURE_TRUE(widget && widget->GetOwningTabChild() && pluginFrame, false);
+  // Caller has to want a result.
+  NS_ENSURE_TRUE(destX || destY, false);
+
+  if (sourceSpace == destSpace) {
+    if (destX) {
+      *destX = sourceX;
+    }
+    if (destY) {
+      *destY = sourceY;
+    }
+    return true;
+  }
+
+  nsPresContext* presContext = pluginFrame->PresContext();
+  double scaleFactor = double(nsPresContext::AppUnitsPerCSSPixel())/
+    presContext->DeviceContext()->AppUnitsPerDevPixelAtUnitFullZoom();
+
+  PuppetWidget *puppetWidget = static_cast<PuppetWidget*>(widget);
+  PuppetWidget *rootWidget = static_cast<PuppetWidget*>(widget->GetTopLevelWidget());
+  if (!rootWidget) {
+    return false;
+  }
+  nsPoint chromeSize = AsNsPoint(rootWidget->GetChromeDimensions()) / scaleFactor;
+  nsIntSize intScreenDims = rootWidget->GetScreenDimensions();
+  nsSize screenDims = nsSize(intScreenDims.width / scaleFactor,
+                             intScreenDims.height / scaleFactor);
+  int32_t screenH = screenDims.height;
+  nsPoint windowPosition = AsNsPoint(rootWidget->GetWindowPosition()) / scaleFactor;
+
+  // Window size is tab size + chrome size.
+  LayoutDeviceIntRect tabContentBounds = puppetWidget->GetBounds();
+  tabContentBounds.ScaleInverseRoundOut(scaleFactor);
+  int32_t windowH = tabContentBounds.height + int(chromeSize.y);
+
+  nsPoint pluginPosition = AsNsPoint(pluginFrame->GetScreenRect().TopLeft());
+
+  // Convert (sourceX, sourceY) to 'real' (not PuppetWidget) screen space.
+  // In OSX, the Y-axis increases upward, which is the reverse of ours.
+  // We want OSX coordinates for window and screen so those equations are swapped.
+  nsPoint sourcePoint(sourceX, sourceY);
+  nsPoint screenPoint;
+  switch (sourceSpace) {
+    case NPCoordinateSpacePlugin:
+      screenPoint = sourcePoint + pluginPosition +
+        pluginFrame->GetContentRectRelativeToSelf().TopLeft() / nsPresContext::AppUnitsPerCSSPixel();
+      break;
+    case NPCoordinateSpaceWindow:
+      screenPoint = nsPoint(sourcePoint.x, windowH-sourcePoint.y) +
+        windowPosition;
+      break;
+    case NPCoordinateSpaceFlippedWindow:
+      screenPoint = sourcePoint + windowPosition;
+      break;
+    case NPCoordinateSpaceScreen:
+      screenPoint = nsPoint(sourcePoint.x, screenH-sourcePoint.y);
+      break;
+    case NPCoordinateSpaceFlippedScreen:
+      screenPoint = sourcePoint;
+      break;
+    default:
+      return false;
+  }
+
+  // Convert from screen to dest space.
+  nsPoint destPoint;
+  switch (destSpace) {
+    case NPCoordinateSpacePlugin:
+      destPoint = screenPoint - pluginPosition -
+        pluginFrame->GetContentRectRelativeToSelf().TopLeft() / nsPresContext::AppUnitsPerCSSPixel();
+      break;
+    case NPCoordinateSpaceWindow:
+      destPoint = screenPoint - windowPosition;
+      destPoint.y = windowH - destPoint.y;
+      break;
+    case NPCoordinateSpaceFlippedWindow:
+      destPoint = screenPoint - windowPosition;
+      break;
+    case NPCoordinateSpaceScreen:
+      destPoint = nsPoint(screenPoint.x, screenH-screenPoint.y);
+      break;
+    case NPCoordinateSpaceFlippedScreen:
+      destPoint = screenPoint;
+      break;
+    default:
+      return false;
+  }
+
+  if (destX) {
+    *destX = destPoint.x;
+  }
+  if (destY) {
+    *destY = destPoint.y;
+  }
+
+  return true;
+}
+
+NPBool nsPluginInstanceOwner::ConvertPointNoPuppet(nsIWidget *widget,
+                                                   nsPluginFrame* pluginFrame,
+                                                   double sourceX, double sourceY,
+                                                   NPCoordinateSpace sourceSpace,
+                                                   double *destX, double *destY,
+                                                   NPCoordinateSpace destSpace)
+{
+  NS_ENSURE_TRUE(widget && pluginFrame, false);
+  // Caller has to want a result.
+  NS_ENSURE_TRUE(destX || destY, false);
+
+  if (sourceSpace == destSpace) {
+    if (destX) {
+      *destX = sourceX;
+    }
+    if (destY) {
+      *destY = sourceY;
+    }
+    return true;
+  }
+
+  nsPresContext* presContext = pluginFrame->PresContext();
+  double scaleFactor = double(nsPresContext::AppUnitsPerCSSPixel())/
+    presContext->DeviceContext()->AppUnitsPerDevPixelAtUnitFullZoom();
+
+  nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1");
+  if (!screenMgr) {
+    return false;
+  }
+  nsCOMPtr<nsIScreen> screen;
+  screenMgr->ScreenForNativeWidget(widget->GetNativeData(NS_NATIVE_WINDOW), getter_AddRefs(screen));
+  if (!screen) {
+    return false;
+  }
+
+  int32_t screenX, screenY, screenWidth, screenHeight;
+  screen->GetRect(&screenX, &screenY, &screenWidth, &screenHeight);
+  screenHeight /= scaleFactor;
+
+  LayoutDeviceIntRect windowScreenBounds = widget->GetScreenBounds();
+  windowScreenBounds.ScaleInverseRoundOut(scaleFactor);
+  int32_t windowX = windowScreenBounds.x;
+  int32_t windowY = windowScreenBounds.y;
+  int32_t windowHeight = windowScreenBounds.height;
+
+  nsIntRect pluginScreenRect = pluginFrame->GetScreenRect();
+
+  double screenXGecko, screenYGecko;
+  switch (sourceSpace) {
+    case NPCoordinateSpacePlugin:
+      screenXGecko = pluginScreenRect.x + sourceX;
+      screenYGecko = pluginScreenRect.y + sourceY;
+      break;
+    case NPCoordinateSpaceWindow:
+      screenXGecko = windowX + sourceX;
+      screenYGecko = windowY + (windowHeight - sourceY);
+      break;
+    case NPCoordinateSpaceFlippedWindow:
+      screenXGecko = windowX + sourceX;
+      screenYGecko = windowY + sourceY;
+      break;
+    case NPCoordinateSpaceScreen:
+      screenXGecko = sourceX;
+      screenYGecko = screenHeight - sourceY;
+      break;
+    case NPCoordinateSpaceFlippedScreen:
+      screenXGecko = sourceX;
+      screenYGecko = sourceY;
+      break;
+    default:
+      return false;
+  }
+
+  double destXCocoa, destYCocoa;
+  switch (destSpace) {
+    case NPCoordinateSpacePlugin:
+      destXCocoa = screenXGecko - pluginScreenRect.x;
+      destYCocoa = screenYGecko - pluginScreenRect.y;
+      break;
+    case NPCoordinateSpaceWindow:
+      destXCocoa = screenXGecko - windowX;
+      destYCocoa = windowHeight - (screenYGecko - windowY);
+      break;
+    case NPCoordinateSpaceFlippedWindow:
+      destXCocoa = screenXGecko - windowX;
+      destYCocoa = screenYGecko - windowY;
+      break;
+    case NPCoordinateSpaceScreen:
+      destXCocoa = screenXGecko;
+      destYCocoa = screenHeight - screenYGecko;
+      break;
+    case NPCoordinateSpaceFlippedScreen:
+      destXCocoa = screenXGecko;
+      destYCocoa = screenYGecko;
+      break;
+    default:
+      return false;
+  }
+
+  if (destX) {
+    *destX = destXCocoa;
+  }
+  if (destY) {
+    *destY = destYCocoa;
+  }
+
+  return true;
+}
+#endif // XP_MACOSX
+
+NPBool nsPluginInstanceOwner::ConvertPoint(double sourceX, double sourceY, NPCoordinateSpace sourceSpace,
+                                           double *destX, double *destY, NPCoordinateSpace destSpace)
+{
+#ifdef XP_MACOSX
+  if (!mPluginFrame) {
+    return false;
+  }
+
+  MOZ_ASSERT(mPluginFrame->GetNearestWidget());
+
+  if (nsIWidget::UsePuppetWidgets()) {
+    return ConvertPointPuppet(static_cast<PuppetWidget*>(mPluginFrame->GetNearestWidget()),
+                               mPluginFrame, sourceX, sourceY, sourceSpace,
+                               destX, destY, destSpace);
+  }
+
+  return ConvertPointNoPuppet(mPluginFrame->GetNearestWidget(),
+                              mPluginFrame, sourceX, sourceY, sourceSpace,
+                              destX, destY, destSpace);
+#else
+  return false;
+#endif
+}
+
+NPError nsPluginInstanceOwner::InitAsyncSurface(NPSize *size, NPImageFormat format,
+                                                void *initData, NPAsyncSurface *surface)
+{
+  return NPERR_INCOMPATIBLE_VERSION_ERROR;
+}
+
+NPError nsPluginInstanceOwner::FinalizeAsyncSurface(NPAsyncSurface *)
+{
+  return NPERR_INCOMPATIBLE_VERSION_ERROR;
+}
+
+void nsPluginInstanceOwner::SetCurrentAsyncSurface(NPAsyncSurface *, NPRect*)
+{
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::GetTagType(nsPluginTagType *result)
+{
+  NS_ENSURE_ARG_POINTER(result);
+
+  *result = nsPluginTagType_Unknown;
+
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  if (content->IsHTMLElement(nsGkAtoms::applet))
+    *result = nsPluginTagType_Applet;
+  else if (content->IsHTMLElement(nsGkAtoms::embed))
+    *result = nsPluginTagType_Embed;
+  else if (content->IsHTMLElement(nsGkAtoms::object))
+    *result = nsPluginTagType_Object;
+
+  return NS_OK;
+}
+
+void nsPluginInstanceOwner::GetParameters(nsTArray<MozPluginParameter>& parameters)
+{
+  nsCOMPtr<nsIObjectLoadingContent> content = do_QueryReferent(mContent);
+  nsObjectLoadingContent *loadingContent =
+    static_cast<nsObjectLoadingContent*>(content.get());
+
+  loadingContent->GetPluginParameters(parameters);
+}
+
+#ifdef XP_MACOSX
+
+static void InitializeNPCocoaEvent(NPCocoaEvent* event)
+{
+  memset(event, 0, sizeof(NPCocoaEvent));
+}
+
+NPDrawingModel nsPluginInstanceOwner::GetDrawingModel()
+{
+#ifndef NP_NO_QUICKDRAW
+  // We don't support the Quickdraw drawing model any more but it's still
+  // the default model for i386 per NPAPI.
+  NPDrawingModel drawingModel = NPDrawingModelQuickDraw;
+#else
+  NPDrawingModel drawingModel = NPDrawingModelCoreGraphics;
+#endif
+
+  if (!mInstance)
+    return drawingModel;
+
+  mInstance->GetDrawingModel((int32_t*)&drawingModel);
+  return drawingModel;
+}
+
+bool nsPluginInstanceOwner::IsRemoteDrawingCoreAnimation()
+{
+  if (!mInstance)
+    return false;
+
+  bool coreAnimation;
+  if (!NS_SUCCEEDED(mInstance->IsRemoteDrawingCoreAnimation(&coreAnimation)))
+    return false;
+
+  return coreAnimation;
+}
+
+NPEventModel nsPluginInstanceOwner::GetEventModel()
+{
+  return mEventModel;
+}
+
+#define DEFAULT_REFRESH_RATE 20 // 50 FPS
+
+nsCOMPtr<nsITimer>               *nsPluginInstanceOwner::sCATimer = nullptr;
+nsTArray<nsPluginInstanceOwner*> *nsPluginInstanceOwner::sCARefreshListeners = nullptr;
+
+void nsPluginInstanceOwner::CARefresh(nsITimer *aTimer, void *aClosure) {
+  if (!sCARefreshListeners) {
+    return;
+  }
+  for (size_t i = 0; i < sCARefreshListeners->Length(); i++) {
+    nsPluginInstanceOwner* instanceOwner = (*sCARefreshListeners)[i];
+    NPWindow *window;
+    instanceOwner->GetWindow(window);
+    if (!window) {
+      continue;
+    }
+    NPRect r;
+    r.left = 0;
+    r.top = 0;
+    r.right = window->width;
+    r.bottom = window->height;
+    instanceOwner->InvalidateRect(&r);
+  }
+}
+
+void nsPluginInstanceOwner::AddToCARefreshTimer() {
+  if (!mInstance) {
+    return;
+  }
+
+  // Flash invokes InvalidateRect for us.
+  const char* mime = nullptr;
+  if (NS_SUCCEEDED(mInstance->GetMIMEType(&mime)) && mime &&
+      nsPluginHost::GetSpecialType(nsDependentCString(mime)) ==
+      nsPluginHost::eSpecialType_Flash) {
+    return;
+  }
+
+  if (!sCARefreshListeners) {
+    sCARefreshListeners = new nsTArray<nsPluginInstanceOwner*>();
+  }
+
+  if (sCARefreshListeners->Contains(this)) {
+    return;
+  }
+
+  sCARefreshListeners->AppendElement(this);
+
+  if (!sCATimer) {
+    sCATimer = new nsCOMPtr<nsITimer>();
+  }
+
+  if (sCARefreshListeners->Length() == 1) {
+    *sCATimer = do_CreateInstance("@mozilla.org/timer;1");
+    (*sCATimer)->InitWithFuncCallback(CARefresh, nullptr,
+                   DEFAULT_REFRESH_RATE, nsITimer::TYPE_REPEATING_SLACK);
+  }
+}
+
+void nsPluginInstanceOwner::RemoveFromCARefreshTimer() {
+  if (!sCARefreshListeners || sCARefreshListeners->Contains(this) == false) {
+    return;
+  }
+
+  sCARefreshListeners->RemoveElement(this);
+
+  if (sCARefreshListeners->Length() == 0) {
+    if (sCATimer) {
+      (*sCATimer)->Cancel();
+      delete sCATimer;
+      sCATimer = nullptr;
+    }
+    delete sCARefreshListeners;
+    sCARefreshListeners = nullptr;
+  }
+}
+
+void nsPluginInstanceOwner::SetPluginPort()
+{
+  void* pluginPort = GetPluginPort();
+  if (!pluginPort || !mPluginWindow)
+    return;
+  mPluginWindow->window = pluginPort;
+}
+#endif
+#if defined(XP_MACOSX) || defined(XP_WIN)
+nsresult nsPluginInstanceOwner::ContentsScaleFactorChanged(double aContentsScaleFactor)
+{
+  if (!mInstance) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  return mInstance->ContentsScaleFactorChanged(aContentsScaleFactor);
+}
+#endif
+
+
+// static
+uint32_t
+nsPluginInstanceOwner::GetEventloopNestingLevel()
+{
+  nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID);
+  uint32_t currentLevel = 0;
+  if (appShell) {
+    appShell->GetEventloopNestingLevel(&currentLevel);
+#ifdef XP_MACOSX
+    // Cocoa widget code doesn't process UI events through the normal
+    // appshell event loop, so it needs an additional count here.
+    currentLevel++;
+#endif
+  }
+
+  // No idea how this happens... but Linux doesn't consistently
+  // process UI events through the appshell event loop. If we get a 0
+  // here on any platform we increment the level just in case so that
+  // we make sure we always tear the plugin down eventually.
+  if (!currentLevel) {
+    currentLevel++;
+  }
+
+  return currentLevel;
+}
+
+#ifdef MOZ_WIDGET_ANDROID
+
+// Modified version of nsFrame::GetOffsetToCrossDoc that stops when it
+// hits an element with a displayport (or runs out of frames). This is
+// not really the right thing to do, but it's better than what was here before.
+static nsPoint
+GetOffsetRootContent(nsIFrame* aFrame)
+{
+  // offset will hold the final offset
+  // docOffset holds the currently accumulated offset at the current APD, it
+  // will be converted and added to offset when the current APD changes.
+  nsPoint offset(0, 0), docOffset(0, 0);
+  const nsIFrame* f = aFrame;
+  int32_t currAPD = aFrame->PresContext()->AppUnitsPerDevPixel();
+  int32_t apd = currAPD;
+  while (f) {
+    if (f->GetContent() && nsLayoutUtils::HasDisplayPort(f->GetContent()))
+      break;
+
+    docOffset += f->GetPosition();
+    nsIFrame* parent = f->GetParent();
+    if (parent) {
+      f = parent;
+    } else {
+      nsPoint newOffset(0, 0);
+      f = nsLayoutUtils::GetCrossDocParentFrame(f, &newOffset);
+      int32_t newAPD = f ? f->PresContext()->AppUnitsPerDevPixel() : 0;
+      if (!f || newAPD != currAPD) {
+        // Convert docOffset to the right APD and add it to offset.
+        offset += docOffset.ScaleToOtherAppUnits(currAPD, apd);
+        docOffset.x = docOffset.y = 0;
+      }
+      currAPD = newAPD;
+      docOffset += newOffset;
+    }
+  }
+
+  offset += docOffset.ScaleToOtherAppUnits(currAPD, apd);
+
+  return offset;
+}
+
+LayoutDeviceRect nsPluginInstanceOwner::GetPluginRect()
+{
+  // Get the offset of the content relative to the page
+  nsRect bounds = mPluginFrame->GetContentRectRelativeToSelf() + GetOffsetRootContent(mPluginFrame);
+  LayoutDeviceIntRect rect = LayoutDeviceIntRect::FromAppUnitsToNearest(bounds, mPluginFrame->PresContext()->AppUnitsPerDevPixel());
+  return LayoutDeviceRect(rect);
+}
+
+bool nsPluginInstanceOwner::AddPluginView(const LayoutDeviceRect& aRect /* = LayoutDeviceRect(0, 0, 0, 0) */)
+{
+  if (!mJavaView) {
+    mJavaView = mInstance->GetJavaSurface();
+
+    if (!mJavaView)
+      return false;
+
+    mJavaView = (void*)jni::GetGeckoThreadEnv()->NewGlobalRef((jobject)mJavaView);
+  }
+
+  if (mFullScreen) {
+    java::GeckoAppShell::AddFullScreenPluginView(jni::Object::Ref::From(jobject(mJavaView)));
+    sFullScreenInstance = this;
+  }
+
+  return true;
+}
+
+void nsPluginInstanceOwner::RemovePluginView()
+{
+  if (!mInstance || !mJavaView)
+    return;
+
+  if (mFullScreen) {
+    java::GeckoAppShell::RemoveFullScreenPluginView(jni::Object::Ref::From(jobject(mJavaView)));
+  }
+  jni::GetGeckoThreadEnv()->DeleteGlobalRef((jobject)mJavaView);
+  mJavaView = nullptr;
+
+  if (mFullScreen)
+    sFullScreenInstance = nullptr;
+}
+
+void
+nsPluginInstanceOwner::GetVideos(nsTArray<nsNPAPIPluginInstance::VideoInfo*>& aVideos)
+{
+  if (!mInstance)
+    return;
+
+  mInstance->GetVideos(aVideos);
+}
+
+already_AddRefed<ImageContainer>
+nsPluginInstanceOwner::GetImageContainerForVideo(nsNPAPIPluginInstance::VideoInfo* aVideoInfo)
+{
+  RefPtr<ImageContainer> container = LayerManager::CreateImageContainer();
+
+  if (aVideoInfo->mDimensions.width && aVideoInfo->mDimensions.height) {
+    RefPtr<Image> img = new SurfaceTextureImage(
+      aVideoInfo->mSurfaceTexture,
+      gfx::IntSize::Truncate(aVideoInfo->mDimensions.width, aVideoInfo->mDimensions.height),
+      gl::OriginPos::BottomLeft);
+    container->SetCurrentImageInTransaction(img);
+  }
+
+  return container.forget();
+}
+
+void nsPluginInstanceOwner::Invalidate() {
+  NPRect rect;
+  rect.left = rect.top = 0;
+  rect.right = mPluginWindow->width;
+  rect.bottom = mPluginWindow->height;
+  InvalidateRect(&rect);
+}
+
+void nsPluginInstanceOwner::Recomposite() {
+  nsIWidget* const widget = mPluginFrame->GetNearestWidget();
+  NS_ENSURE_TRUE_VOID(widget);
+
+  LayerManager* const lm = widget->GetLayerManager();
+  NS_ENSURE_TRUE_VOID(lm);
+
+  ClientLayerManager* const clm = lm->AsClientLayerManager();
+  NS_ENSURE_TRUE_VOID(clm && clm->GetRoot());
+
+  clm->SendInvalidRegion(
+      clm->GetRoot()->GetLocalVisibleRegion().ToUnknownRegion().GetBounds());
+  clm->Composite();
+}
+
+void nsPluginInstanceOwner::RequestFullScreen() {
+  if (mFullScreen)
+    return;
+
+  // Remove whatever view we currently have (if any, fullscreen or otherwise)
+  RemovePluginView();
+
+  mFullScreen = true;
+  AddPluginView();
+
+  mInstance->NotifyFullScreen(mFullScreen);
+}
+
+void nsPluginInstanceOwner::ExitFullScreen() {
+  if (!mFullScreen)
+    return;
+
+  RemovePluginView();
+
+  mFullScreen = false;
+
+  int32_t model = mInstance->GetANPDrawingModel();
+
+  if (model == kSurface_ANPDrawingModel) {
+    // We need to do this immediately, otherwise Flash
+    // sometimes causes a deadlock (bug 762407)
+    AddPluginView(GetPluginRect());
+  }
+
+  mInstance->NotifyFullScreen(mFullScreen);
+
+  // This will cause Paint() to be called, which is where
+  // we normally add/update views and layers
+  Invalidate();
+}
+
+void nsPluginInstanceOwner::ExitFullScreen(jobject view) {
+  JNIEnv* env = jni::GetGeckoThreadEnv();
+
+  if (sFullScreenInstance && sFullScreenInstance->mInstance &&
+      env->IsSameObject(view, (jobject)sFullScreenInstance->mInstance->GetJavaSurface())) {
+    sFullScreenInstance->ExitFullScreen();
+  }
+}
+
+#endif
+
+void
+nsPluginInstanceOwner::NotifyHostAsyncInitFailed()
+{
+  nsCOMPtr<nsIObjectLoadingContent> content = do_QueryReferent(mContent);
+  content->StopPluginInstance();
+}
+
+void
+nsPluginInstanceOwner::NotifyHostCreateWidget()
+{
+  mPluginHost->CreateWidget(this);
+#ifdef XP_MACOSX
+  FixUpPluginWindow(ePluginPaintEnable);
+#else
+  if (mPluginFrame) {
+    mPluginFrame->InvalidateFrame();
+  } else {
+    CallSetWindow();
+  }
+#endif
+}
+
+void
+nsPluginInstanceOwner::NotifyDestroyPending()
+{
+  if (!mInstance) {
+    return;
+  }
+  bool isOOP = false;
+  if (NS_FAILED(mInstance->GetIsOOP(&isOOP)) || !isOOP) {
+    return;
+  }
+  NPP npp = nullptr;
+  if (NS_FAILED(mInstance->GetNPP(&npp)) || !npp) {
+    return;
+  }
+  PluginAsyncSurrogate::NotifyDestroyPending(npp);
+}
+
+nsresult nsPluginInstanceOwner::DispatchFocusToPlugin(nsIDOMEvent* aFocusEvent)
+{
+#ifdef MOZ_WIDGET_ANDROID
+  if (mInstance) {
+    ANPEvent event;
+    event.inSize = sizeof(ANPEvent);
+    event.eventType = kLifecycle_ANPEventType;
+
+    nsAutoString eventType;
+    aFocusEvent->GetType(eventType);
+    if (eventType.EqualsLiteral("focus")) {
+      event.data.lifecycle.action = kGainFocus_ANPLifecycleAction;
+    }
+    else if (eventType.EqualsLiteral("blur")) {
+      event.data.lifecycle.action = kLoseFocus_ANPLifecycleAction;
+    }
+    else {
+      NS_ASSERTION(false, "nsPluginInstanceOwner::DispatchFocusToPlugin, wierd eventType");
+    }
+    mInstance->HandleEvent(&event, nullptr);
+  }
+#endif
+
+#ifndef XP_MACOSX
+  if (!mPluginWindow || (mPluginWindow->type == NPWindowTypeWindow)) {
+    // continue only for cases without child window
+    return aFocusEvent->PreventDefault(); // consume event
+  }
+#endif
+
+  WidgetEvent* theEvent = aFocusEvent->WidgetEventPtr();
+  if (theEvent) {
+    WidgetGUIEvent focusEvent(theEvent->IsTrusted(), theEvent->mMessage,
+                              nullptr);
+    nsEventStatus rv = ProcessEvent(focusEvent);
+    if (nsEventStatus_eConsumeNoDefault == rv) {
+      aFocusEvent->PreventDefault();
+      aFocusEvent->StopPropagation();
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult nsPluginInstanceOwner::ProcessKeyPress(nsIDOMEvent* aKeyEvent)
+{
+#ifdef XP_MACOSX
+  return DispatchKeyToPlugin(aKeyEvent);
+#else
+  if (SendNativeEvents())
+    DispatchKeyToPlugin(aKeyEvent);
+
+  if (mInstance) {
+    // If this event is going to the plugin, we want to kill it.
+    // Not actually sending keypress to the plugin, since we didn't before.
+    aKeyEvent->PreventDefault();
+    aKeyEvent->StopPropagation();
+  }
+  return NS_OK;
+#endif
+}
+
+nsresult nsPluginInstanceOwner::DispatchKeyToPlugin(nsIDOMEvent* aKeyEvent)
+{
+#if !defined(XP_MACOSX)
+  if (!mPluginWindow || (mPluginWindow->type == NPWindowTypeWindow))
+    return aKeyEvent->PreventDefault(); // consume event
+  // continue only for cases without child window
+#endif
+
+  if (mInstance) {
+    WidgetKeyboardEvent* keyEvent =
+      aKeyEvent->WidgetEventPtr()->AsKeyboardEvent();
+    if (keyEvent && keyEvent->mClass == eKeyboardEventClass) {
+      nsEventStatus rv = ProcessEvent(*keyEvent);
+      if (nsEventStatus_eConsumeNoDefault == rv) {
+        aKeyEvent->PreventDefault();
+        aKeyEvent->StopPropagation();
+      }
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult
+nsPluginInstanceOwner::ProcessMouseDown(nsIDOMEvent* aMouseEvent)
+{
+#if !defined(XP_MACOSX)
+  if (!mPluginWindow || (mPluginWindow->type == NPWindowTypeWindow))
+    return aMouseEvent->PreventDefault(); // consume event
+  // continue only for cases without child window
+#endif
+
+  // if the plugin is windowless, we need to set focus ourselves
+  // otherwise, we might not get key events
+  if (mPluginFrame && mPluginWindow &&
+      mPluginWindow->type == NPWindowTypeDrawable) {
+
+    nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+    if (fm) {
+      nsCOMPtr<nsIDOMElement> elem = do_QueryReferent(mContent);
+      fm->SetFocus(elem, 0);
+    }
+  }
+
+  WidgetMouseEvent* mouseEvent =
+    aMouseEvent->WidgetEventPtr()->AsMouseEvent();
+  if (mouseEvent && mouseEvent->mClass == eMouseEventClass) {
+    mLastMouseDownButtonType = mouseEvent->button;
+    nsEventStatus rv = ProcessEvent(*mouseEvent);
+    if (nsEventStatus_eConsumeNoDefault == rv) {
+      return aMouseEvent->PreventDefault(); // consume event
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult nsPluginInstanceOwner::DispatchMouseToPlugin(nsIDOMEvent* aMouseEvent,
+                                                      bool aAllowPropagate)
+{
+#if !defined(XP_MACOSX)
+  if (!mPluginWindow || (mPluginWindow->type == NPWindowTypeWindow))
+    return aMouseEvent->PreventDefault(); // consume event
+  // continue only for cases without child window
+#endif
+  // don't send mouse events if we are hidden
+  if (!mWidgetVisible)
+    return NS_OK;
+
+  WidgetMouseEvent* mouseEvent =
+    aMouseEvent->WidgetEventPtr()->AsMouseEvent();
+  if (mouseEvent && mouseEvent->mClass == eMouseEventClass) {
+    nsEventStatus rv = ProcessEvent(*mouseEvent);
+    if (nsEventStatus_eConsumeNoDefault == rv) {
+      aMouseEvent->PreventDefault();
+      if (!aAllowPropagate) {
+        aMouseEvent->StopPropagation();
+      }
+    }
+    if (mouseEvent->mMessage == eMouseUp) {
+      mLastMouseDownButtonType = -1;
+    }
+  }
+  return NS_OK;
+}
+
+#ifdef XP_WIN
+void
+nsPluginInstanceOwner::CallDefaultProc(const WidgetGUIEvent* aEvent)
+{
+  nsCOMPtr<nsIWidget> widget = GetContainingWidgetIfOffset();
+  if (!widget) {
+    widget = GetRootWidgetForPluginFrame(mPluginFrame);
+    if (NS_WARN_IF(!widget)) {
+      return;
+    }
+  }
+
+  const NPEvent* npEvent =
+    static_cast<const NPEvent*>(aEvent->mPluginEvent);
+  if (NS_WARN_IF(!npEvent)) {
+    return;
+  }
+
+  WidgetPluginEvent pluginEvent(true, ePluginInputEvent, widget);
+  pluginEvent.mPluginEvent.Copy(*npEvent);
+  widget->DefaultProcOfPluginEvent(pluginEvent);
+}
+
+already_AddRefed<TextComposition>
+nsPluginInstanceOwner::GetTextComposition()
+{
+  if (NS_WARN_IF(!mPluginFrame)) {
+    return nullptr;
+  }
+
+  nsCOMPtr<nsIWidget> widget = GetContainingWidgetIfOffset();
+  if (!widget) {
+    widget = GetRootWidgetForPluginFrame(mPluginFrame);
+    if (NS_WARN_IF(!widget)) {
+      return nullptr;
+    }
+  }
+
+  RefPtr<TextComposition> composition =
+    IMEStateManager::GetTextCompositionFor(widget);
+  if (NS_WARN_IF(!composition)) {
+    return nullptr;
+  }
+
+  return composition.forget();
+}
+
+void
+nsPluginInstanceOwner::HandleNoConsumedCompositionMessage(
+  WidgetCompositionEvent* aCompositionEvent,
+  const NPEvent* aPluginEvent)
+{
+  nsCOMPtr<nsIWidget> widget = GetContainingWidgetIfOffset();
+  if (!widget) {
+    widget = GetRootWidgetForPluginFrame(mPluginFrame);
+    if (NS_WARN_IF(!widget)) {
+      return;
+    }
+  }
+
+  NPEvent npevent;
+  if (aPluginEvent->lParam & GCS_RESULTSTR) {
+    // GCS_RESULTSTR's default proc will generate WM_CHAR. So emulate it.
+    for (size_t i = 0; i < aCompositionEvent->mData.Length(); i++) {
+      WidgetPluginEvent charEvent(true, ePluginInputEvent, widget);
+      npevent.event = WM_CHAR;
+      npevent.wParam = aCompositionEvent->mData[i];
+      npevent.lParam = 0;
+      charEvent.mPluginEvent.Copy(npevent);
+      ProcessEvent(charEvent);
+    }
+    return;
+  }
+  if (!mSentStartComposition) {
+    // We post WM_IME_COMPOSITION to default proc, but
+    // WM_IME_STARTCOMPOSITION isn't post yet.  We should post it at first.
+    WidgetPluginEvent startEvent(true, ePluginInputEvent, widget);
+    npevent.event = WM_IME_STARTCOMPOSITION;
+    npevent.wParam = 0;
+    npevent.lParam = 0;
+    startEvent.mPluginEvent.Copy(npevent);
+    CallDefaultProc(&startEvent);
+    mSentStartComposition = true;
+  }
+
+  CallDefaultProc(aCompositionEvent);
+}
+#endif
+
+nsresult
+nsPluginInstanceOwner::DispatchCompositionToPlugin(nsIDOMEvent* aEvent)
+{
+#ifdef XP_WIN
+  if (!mPluginWindow) {
+    // CompositionEvent isn't cancellable.  So it is unnecessary to call
+    // PreventDefaults() to consume event
+    return NS_OK;
+  }
+  WidgetCompositionEvent* compositionEvent =
+    aEvent->WidgetEventPtr()->AsCompositionEvent();
+  if (NS_WARN_IF(!compositionEvent)) {
+      return NS_ERROR_INVALID_ARG;
+  }
+
+  if (compositionEvent->mMessage == eCompositionChange) {
+    RefPtr<TextComposition> composition = GetTextComposition();
+    if (NS_WARN_IF(!composition)) {
+      return NS_ERROR_FAILURE;
+    }
+    TextComposition::CompositionChangeEventHandlingMarker
+      compositionChangeEventHandlingMarker(composition, compositionEvent);
+  }
+
+  const NPEvent* pPluginEvent =
+    static_cast<const NPEvent*>(compositionEvent->mPluginEvent);
+  if (pPluginEvent && pPluginEvent->event == WM_IME_COMPOSITION &&
+      mPluginDidNotHandleIMEComposition) {
+    // This is a workaround when running windowed and windowless Flash on
+    // same process.
+    // Flash with protected mode calls IMM APIs on own render process.  This
+    // is a bug of Flash's protected mode.
+    // ImmGetCompositionString with GCS_RESULTSTR returns *LAST* committed
+    // string.  So when windowed mode Flash handles IME composition,
+    // windowless plugin can get windowed mode's commited string by that API.
+    // So we never post WM_IME_COMPOSITION when plugin doesn't call
+    // ImmGetCompositionString() during WM_IME_COMPOSITION correctly.
+    HandleNoConsumedCompositionMessage(compositionEvent, pPluginEvent);
+    aEvent->StopImmediatePropagation();
+    return NS_OK;
+  }
+
+  // Protected mode Flash returns noDefault by NPP_HandleEvent, but
+  // composition information into plugin is invalid because plugin's bug.
+  // So if plugin doesn't get composition data by WM_IME_COMPOSITION, we
+  // recongnize it isn't handled
+  AutoRestore<bool> restore(mGotCompositionData);
+  mGotCompositionData = false;
+
+  nsEventStatus status = ProcessEvent(*compositionEvent);
+  aEvent->StopImmediatePropagation();
+
+  // Composition event isn't handled by plugin, so we have to call default proc.
+
+  if (NS_WARN_IF(!pPluginEvent)) {
+    return NS_OK;
+  }
+
+  if (pPluginEvent->event == WM_IME_STARTCOMPOSITION) {
+    // Flash's protected mode lies that composition event is handled, but it
+    // cannot do it well.  So even if handled, we should post this message when
+    // no IMM API calls during WM_IME_COMPOSITION.
+    if (nsEventStatus_eConsumeNoDefault != status)  {
+      CallDefaultProc(compositionEvent);
+      mSentStartComposition = true;
+    } else {
+      mSentStartComposition = false;
+    }
+    mPluginDidNotHandleIMEComposition = false;
+    return NS_OK;
+  }
+
+  if (pPluginEvent->event == WM_IME_ENDCOMPOSITION) {
+    // Always post WM_END_COMPOSITION to default proc. Because Flash may lie
+    // that it doesn't handle composition well, but event is handled.
+    // Even if posting this message, default proc do nothing if unnecessary.
+    CallDefaultProc(compositionEvent);
+    return NS_OK;
+  }
+
+  if (pPluginEvent->event == WM_IME_COMPOSITION && !mGotCompositionData) {
+    // If plugin doesn't handle WM_IME_COMPOSITION correctly, we don't send
+    // composition event until end composition.
+    mPluginDidNotHandleIMEComposition = true;
+
+    HandleNoConsumedCompositionMessage(compositionEvent, pPluginEvent);
+  }
+#endif // #ifdef XP_WIN
+  return NS_OK;
+}
+
+nsresult
+nsPluginInstanceOwner::HandleEvent(nsIDOMEvent* aEvent)
+{
+  NS_ASSERTION(mInstance, "Should have a valid plugin instance or not receive events.");
+
+  nsAutoString eventType;
+  aEvent->GetType(eventType);
+
+#ifdef XP_MACOSX
+  if (eventType.EqualsLiteral("activate") ||
+      eventType.EqualsLiteral("deactivate")) {
+    WindowFocusMayHaveChanged();
+    return NS_OK;
+  }
+  if (eventType.EqualsLiteral("MozPerformDelayedBlur")) {
+    if (mShouldBlurOnActivate) {
+      WidgetGUIEvent blurEvent(true, eBlur, nullptr);
+      ProcessEvent(blurEvent);
+      mShouldBlurOnActivate = false;
+    }
+    return NS_OK;
+  }
+#endif
+
+  if (eventType.EqualsLiteral("focus")) {
+    mContentFocused = true;
+    return DispatchFocusToPlugin(aEvent);
+  }
+  if (eventType.EqualsLiteral("blur")) {
+    mContentFocused = false;
+    return DispatchFocusToPlugin(aEvent);
+  }
+  if (eventType.EqualsLiteral("mousedown")) {
+    return ProcessMouseDown(aEvent);
+  }
+  if (eventType.EqualsLiteral("mouseup")) {
+    return DispatchMouseToPlugin(aEvent);
+  }
+  if (eventType.EqualsLiteral("mousemove")) {
+    return DispatchMouseToPlugin(aEvent, true);
+  }
+  if (eventType.EqualsLiteral("click") ||
+      eventType.EqualsLiteral("dblclick") ||
+      eventType.EqualsLiteral("mouseover") ||
+      eventType.EqualsLiteral("mouseout")) {
+    return DispatchMouseToPlugin(aEvent);
+  }
+  if (eventType.EqualsLiteral("keydown") ||
+      eventType.EqualsLiteral("keyup")) {
+    return DispatchKeyToPlugin(aEvent);
+  }
+  if (eventType.EqualsLiteral("keypress")) {
+    return ProcessKeyPress(aEvent);
+  }
+  if (eventType.EqualsLiteral("compositionstart") ||
+      eventType.EqualsLiteral("compositionend") ||
+      eventType.EqualsLiteral("text")) {
+    return DispatchCompositionToPlugin(aEvent);
+  }
+
+  nsCOMPtr<nsIDOMDragEvent> dragEvent(do_QueryInterface(aEvent));
+  if (dragEvent && mInstance) {
+    WidgetEvent* ievent = aEvent->WidgetEventPtr();
+    if (ievent && ievent->IsTrusted() &&
+        ievent->mMessage != eDragEnter && ievent->mMessage != eDragOver) {
+      aEvent->PreventDefault();
+    }
+
+    // Let the plugin handle drag events.
+    aEvent->StopPropagation();
+  }
+  return NS_OK;
+}
+
+#ifdef MOZ_X11
+static unsigned int XInputEventState(const WidgetInputEvent& anEvent)
+{
+  unsigned int state = 0;
+  if (anEvent.IsShift()) state |= ShiftMask;
+  if (anEvent.IsControl()) state |= ControlMask;
+  if (anEvent.IsAlt()) state |= Mod1Mask;
+  if (anEvent.IsMeta()) state |= Mod4Mask;
+  return state;
+}
+#endif
+
+#ifdef XP_MACOSX
+
+// Returns whether or not content is the content that is or would be
+// focused if the top-level chrome window was active.
+static bool
+ContentIsFocusedWithinWindow(nsIContent* aContent)
+{
+  nsPIDOMWindowOuter* outerWindow = aContent->OwnerDoc()->GetWindow();
+  if (!outerWindow) {
+    return false;
+  }
+
+  nsPIDOMWindowOuter* rootWindow = outerWindow->GetPrivateRoot();
+  if (!rootWindow) {
+    return false;
+  }
+
+  nsFocusManager* fm = nsFocusManager::GetFocusManager();
+  if (!fm) {
+    return false;
+  }
+
+  nsCOMPtr<nsPIDOMWindowOuter> focusedFrame;
+  nsCOMPtr<nsIContent> focusedContent = fm->GetFocusedDescendant(rootWindow, true, getter_AddRefs(focusedFrame));
+  return (focusedContent.get() == aContent);
+}
+
+static NPCocoaEventType
+CocoaEventTypeForEvent(const WidgetGUIEvent& anEvent, nsIFrame* aObjectFrame)
+{
+  const NPCocoaEvent* event = static_cast<const NPCocoaEvent*>(anEvent.mPluginEvent);
+  if (event) {
+    return event->type;
+  }
+
+  switch (anEvent.mMessage) {
+    case eMouseOver:
+      return NPCocoaEventMouseEntered;
+    case eMouseOut:
+      return NPCocoaEventMouseExited;
+    case eMouseMove: {
+      // We don't know via information on events from the widget code whether or not
+      // we're dragging. The widget code just generates mouse move events from native
+      // drag events. If anybody is capturing, this is a drag event.
+      if (nsIPresShell::GetCapturingContent()) {
+        return NPCocoaEventMouseDragged;
+      }
+
+      return NPCocoaEventMouseMoved;
+    }
+    case eMouseDown:
+      return NPCocoaEventMouseDown;
+    case eMouseUp:
+      return NPCocoaEventMouseUp;
+    case eKeyDown:
+      return NPCocoaEventKeyDown;
+    case eKeyUp:
+      return NPCocoaEventKeyUp;
+    case eFocus:
+    case eBlur:
+      return NPCocoaEventFocusChanged;
+    case eLegacyMouseLineOrPageScroll:
+      return NPCocoaEventScrollWheel;
+    default:
+      return (NPCocoaEventType)0;
+  }
+}
+
+static NPCocoaEvent
+TranslateToNPCocoaEvent(WidgetGUIEvent* anEvent, nsIFrame* aObjectFrame)
+{
+  NPCocoaEvent cocoaEvent;
+  InitializeNPCocoaEvent(&cocoaEvent);
+  cocoaEvent.type = CocoaEventTypeForEvent(*anEvent, aObjectFrame);
+
+  if (anEvent->mMessage == eMouseMove ||
+      anEvent->mMessage == eMouseDown ||
+      anEvent->mMessage == eMouseUp ||
+      anEvent->mMessage == eLegacyMouseLineOrPageScroll ||
+      anEvent->mMessage == eMouseOver ||
+      anEvent->mMessage == eMouseOut)
+  {
+    nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(anEvent, aObjectFrame) -
+                 aObjectFrame->GetContentRectRelativeToSelf().TopLeft();
+    nsPresContext* presContext = aObjectFrame->PresContext();
+    // Plugin event coordinates need to be translated from device pixels
+    // into "display pixels" in HiDPI modes.
+    double scaleFactor = double(nsPresContext::AppUnitsPerCSSPixel())/
+      aObjectFrame->PresContext()->DeviceContext()->AppUnitsPerDevPixelAtUnitFullZoom();
+    size_t intScaleFactor = ceil(scaleFactor);
+    nsIntPoint ptPx(presContext->AppUnitsToDevPixels(pt.x) / intScaleFactor,
+                    presContext->AppUnitsToDevPixels(pt.y) / intScaleFactor);
+    cocoaEvent.data.mouse.pluginX = double(ptPx.x);
+    cocoaEvent.data.mouse.pluginY = double(ptPx.y);
+  }
+
+  switch (anEvent->mMessage) {
+    case eMouseDown:
+    case eMouseUp: {
+      WidgetMouseEvent* mouseEvent = anEvent->AsMouseEvent();
+      if (mouseEvent) {
+        switch (mouseEvent->button) {
+          case WidgetMouseEvent::eLeftButton:
+            cocoaEvent.data.mouse.buttonNumber = 0;
+            break;
+          case WidgetMouseEvent::eRightButton:
+            cocoaEvent.data.mouse.buttonNumber = 1;
+            break;
+          case WidgetMouseEvent::eMiddleButton:
+            cocoaEvent.data.mouse.buttonNumber = 2;
+            break;
+          default:
+            NS_WARNING("Mouse button we don't know about?");
+        }
+        cocoaEvent.data.mouse.clickCount = mouseEvent->mClickCount;
+      } else {
+        NS_WARNING("eMouseUp/DOWN is not a WidgetMouseEvent?");
+      }
+      break;
+    }
+    case eLegacyMouseLineOrPageScroll: {
+      WidgetWheelEvent* wheelEvent = anEvent->AsWheelEvent();
+      if (wheelEvent) {
+        cocoaEvent.data.mouse.deltaX = wheelEvent->mLineOrPageDeltaX;
+        cocoaEvent.data.mouse.deltaY = wheelEvent->mLineOrPageDeltaY;
+      } else {
+        NS_WARNING("eLegacyMouseLineOrPageScroll is not a WidgetWheelEvent? "
+                   "(could be, haven't checked)");
+      }
+      break;
+    }
+    case eKeyDown:
+    case eKeyUp:
+    {
+      WidgetKeyboardEvent* keyEvent = anEvent->AsKeyboardEvent();
+
+      // That keyEvent->mPluginTextEventString is non-empty is a signal that we should
+      // create a text event for the plugin, instead of a key event.
+      if (anEvent->mMessage == eKeyDown &&
+          !keyEvent->mPluginTextEventString.IsEmpty()) {
+        cocoaEvent.type = NPCocoaEventTextInput;
+        const char16_t* pluginTextEventString = keyEvent->mPluginTextEventString.get();
+        cocoaEvent.data.text.text = (NPNSString*)
+          ::CFStringCreateWithCharacters(NULL,
+                                         reinterpret_cast<const UniChar*>(pluginTextEventString),
+                                         keyEvent->mPluginTextEventString.Length());
+      } else {
+        cocoaEvent.data.key.keyCode = keyEvent->mNativeKeyCode;
+        cocoaEvent.data.key.isARepeat = keyEvent->mIsRepeat;
+        cocoaEvent.data.key.modifierFlags = keyEvent->mNativeModifierFlags;
+        const char16_t* nativeChars = keyEvent->mNativeCharacters.get();
+        cocoaEvent.data.key.characters = (NPNSString*)
+          ::CFStringCreateWithCharacters(NULL,
+                                         reinterpret_cast<const UniChar*>(nativeChars),
+                                         keyEvent->mNativeCharacters.Length());
+        const char16_t* nativeCharsIgnoringModifiers = keyEvent->mNativeCharactersIgnoringModifiers.get();
+        cocoaEvent.data.key.charactersIgnoringModifiers = (NPNSString*)
+          ::CFStringCreateWithCharacters(NULL,
+                                         reinterpret_cast<const UniChar*>(nativeCharsIgnoringModifiers),
+                                         keyEvent->mNativeCharactersIgnoringModifiers.Length());
+      }
+      break;
+    }
+    case eFocus:
+    case eBlur:
+      cocoaEvent.data.focus.hasFocus = (anEvent->mMessage == eFocus);
+      break;
+    default:
+      break;
+  }
+  return cocoaEvent;
+}
+
+void nsPluginInstanceOwner::PerformDelayedBlurs()
+{
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  nsCOMPtr<EventTarget> windowRoot = content->OwnerDoc()->GetWindow()->GetTopWindowRoot();
+  nsContentUtils::DispatchTrustedEvent(content->OwnerDoc(),
+                                       windowRoot,
+                                       NS_LITERAL_STRING("MozPerformDelayedBlur"),
+                                       false, false, nullptr);
+}
+
+#endif
+
+nsEventStatus nsPluginInstanceOwner::ProcessEvent(const WidgetGUIEvent& anEvent)
+{
+  nsEventStatus rv = nsEventStatus_eIgnore;
+
+  if (!mInstance || !mPluginFrame) {
+    return nsEventStatus_eIgnore;
+  }
+
+#ifdef XP_MACOSX
+  NPEventModel eventModel = GetEventModel();
+  if (eventModel != NPEventModelCocoa) {
+    return nsEventStatus_eIgnore;
+  }
+
+  // In the Cocoa event model, focus is per-window. Don't tell a plugin it lost
+  // focus unless it lost focus within the window. For example, ignore a blur
+  // event if it's coming due to the plugin's window deactivating.
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  if (anEvent.mMessage == eBlur && ContentIsFocusedWithinWindow(content)) {
+    mShouldBlurOnActivate = true;
+    return nsEventStatus_eIgnore;
+  }
+
+  // Also, don't tell the plugin it gained focus again after we've already given
+  // it focus. This might happen if it has focus, its window is blurred, then the
+  // window is made active again. The plugin never lost in-window focus, so it
+  // shouldn't get a focus event again.
+  if (anEvent.mMessage == eFocus && mLastContentFocused == true) {
+    mShouldBlurOnActivate = false;
+    return nsEventStatus_eIgnore;
+  }
+
+  // Now, if we're going to send a focus event, update mLastContentFocused and
+  // tell any plugins in our window that we have taken focus, so they should
+  // perform any delayed blurs.
+  if (anEvent.mMessage == eFocus || anEvent.mMessage == eBlur) {
+    mLastContentFocused = (anEvent.mMessage == eFocus);
+    mShouldBlurOnActivate = false;
+    PerformDelayedBlurs();
+  }
+
+  NPCocoaEvent cocoaEvent = TranslateToNPCocoaEvent(const_cast<WidgetGUIEvent*>(&anEvent), mPluginFrame);
+  if (cocoaEvent.type == (NPCocoaEventType)0) {
+    return nsEventStatus_eIgnore;
+  }
+
+  if (cocoaEvent.type == NPCocoaEventTextInput) {
+    mInstance->HandleEvent(&cocoaEvent, nullptr);
+    return nsEventStatus_eConsumeNoDefault;
+  }
+
+  int16_t response = kNPEventNotHandled;
+  mInstance->HandleEvent(&cocoaEvent,
+                         &response,
+                         NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+  if ((response == kNPEventStartIME) && (cocoaEvent.type == NPCocoaEventKeyDown)) {
+    nsIWidget* widget = mPluginFrame->GetNearestWidget();
+    if (widget) {
+      const WidgetKeyboardEvent* keyEvent = anEvent.AsKeyboardEvent();
+      double screenX, screenY;
+      ConvertPoint(0.0, mPluginFrame->GetScreenRect().height,
+                   NPCoordinateSpacePlugin, &screenX, &screenY,
+                   NPCoordinateSpaceScreen);
+      nsAutoString outText;
+      if (NS_SUCCEEDED(widget->StartPluginIME(*keyEvent, screenX, screenY, outText)) &&
+          !outText.IsEmpty()) {
+        CFStringRef cfString =
+          ::CFStringCreateWithCharacters(kCFAllocatorDefault,
+                                         reinterpret_cast<const UniChar*>(outText.get()),
+                                         outText.Length());
+        NPCocoaEvent textEvent;
+        InitializeNPCocoaEvent(&textEvent);
+        textEvent.type = NPCocoaEventTextInput;
+        textEvent.data.text.text = (NPNSString*)cfString;
+        mInstance->HandleEvent(&textEvent, nullptr);
+      }
+    }
+  }
+
+  bool handled = (response == kNPEventHandled || response == kNPEventStartIME);
+  bool leftMouseButtonDown = (anEvent.mMessage == eMouseDown) &&
+                             (anEvent.AsMouseEvent()->button == WidgetMouseEvent::eLeftButton);
+  if (handled && !(leftMouseButtonDown && !mContentFocused)) {
+    rv = nsEventStatus_eConsumeNoDefault;
+  }
+#endif
+
+#ifdef XP_WIN
+  // this code supports windowless plugins
+  const NPEvent *pPluginEvent = static_cast<const NPEvent*>(anEvent.mPluginEvent);
+  // we can get synthetic events from the EventStateManager... these
+  // have no pluginEvent
+  NPEvent pluginEvent;
+  if (anEvent.mClass == eMouseEventClass ||
+      anEvent.mClass == eWheelEventClass) {
+    if (!pPluginEvent) {
+      // XXX Should extend this list to synthesize events for more event
+      // types
+      pluginEvent.event = 0;
+      bool initWParamWithCurrentState = true;
+      switch (anEvent.mMessage) {
+      case eMouseMove: {
+        pluginEvent.event = WM_MOUSEMOVE;
+        break;
+      }
+      case eMouseDown: {
+        static const int downMsgs[] =
+          { WM_LBUTTONDOWN, WM_MBUTTONDOWN, WM_RBUTTONDOWN };
+        static const int dblClickMsgs[] =
+          { WM_LBUTTONDBLCLK, WM_MBUTTONDBLCLK, WM_RBUTTONDBLCLK };
+        const WidgetMouseEvent* mouseEvent = anEvent.AsMouseEvent();
+        if (mouseEvent->mClickCount == 2) {
+          pluginEvent.event = dblClickMsgs[mouseEvent->button];
+        } else {
+          pluginEvent.event = downMsgs[mouseEvent->button];
+        }
+        break;
+      }
+      case eMouseUp: {
+        static const int upMsgs[] =
+          { WM_LBUTTONUP, WM_MBUTTONUP, WM_RBUTTONUP };
+        const WidgetMouseEvent* mouseEvent = anEvent.AsMouseEvent();
+        pluginEvent.event = upMsgs[mouseEvent->button];
+        break;
+      }
+      // For plugins which don't support high-resolution scroll, we should
+      // generate legacy resolution wheel messages.  I.e., the delta value
+      // should be WHEEL_DELTA * n.
+      case eWheel: {
+        const WidgetWheelEvent* wheelEvent = anEvent.AsWheelEvent();
+        int32_t delta = 0;
+        if (wheelEvent->mLineOrPageDeltaY) {
+          switch (wheelEvent->mDeltaMode) {
+            case nsIDOMWheelEvent::DOM_DELTA_PAGE:
+              pluginEvent.event = WM_MOUSEWHEEL;
+              delta = -WHEEL_DELTA * wheelEvent->mLineOrPageDeltaY;
+              break;
+            case nsIDOMWheelEvent::DOM_DELTA_LINE: {
+              UINT linesPerWheelDelta = 0;
+              if (NS_WARN_IF(!::SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0,
+                                                     &linesPerWheelDelta, 0))) {
+                // Use system default scroll amount, 3, when
+                // SPI_GETWHEELSCROLLLINES isn't available.
+                linesPerWheelDelta = 3;
+              }
+              if (!linesPerWheelDelta) {
+                break;
+              }
+              pluginEvent.event = WM_MOUSEWHEEL;
+              delta = -WHEEL_DELTA / linesPerWheelDelta;
+              delta *= wheelEvent->mLineOrPageDeltaY;
+              break;
+            }
+            case nsIDOMWheelEvent::DOM_DELTA_PIXEL:
+            default:
+              // We don't support WM_GESTURE with this path.
+              MOZ_ASSERT(!pluginEvent.event);
+              break;
+          }
+        } else if (wheelEvent->mLineOrPageDeltaX) {
+          switch (wheelEvent->mDeltaMode) {
+            case nsIDOMWheelEvent::DOM_DELTA_PAGE:
+              pluginEvent.event = WM_MOUSEHWHEEL;
+              delta = -WHEEL_DELTA * wheelEvent->mLineOrPageDeltaX;
+              break;
+            case nsIDOMWheelEvent::DOM_DELTA_LINE: {
+              pluginEvent.event = WM_MOUSEHWHEEL;
+              UINT charsPerWheelDelta = 0;
+              // FYI: SPI_GETWHEELSCROLLCHARS is available on Vista or later.
+              if (::SystemParametersInfo(SPI_GETWHEELSCROLLCHARS, 0,
+                                         &charsPerWheelDelta, 0)) {
+                // Use system default scroll amount, 3, when
+                // SPI_GETWHEELSCROLLCHARS isn't available.
+                charsPerWheelDelta = 3;
+              }
+              if (!charsPerWheelDelta) {
+                break;
+              }
+              delta = WHEEL_DELTA / charsPerWheelDelta;
+              delta *= wheelEvent->mLineOrPageDeltaX;
+              break;
+            }
+            case nsIDOMWheelEvent::DOM_DELTA_PIXEL:
+            default:
+              // We don't support WM_GESTURE with this path.
+              MOZ_ASSERT(!pluginEvent.event);
+              break;
+          }
+        }
+
+        if (!pluginEvent.event) {
+          break;
+        }
+
+        initWParamWithCurrentState = false;
+        int32_t modifiers =
+          (wheelEvent->IsControl() ?             MK_CONTROL  : 0) |
+          (wheelEvent->IsShift() ?               MK_SHIFT    : 0) |
+          (wheelEvent->IsLeftButtonPressed() ?   MK_LBUTTON  : 0) |
+          (wheelEvent->IsMiddleButtonPressed() ? MK_MBUTTON  : 0) |
+          (wheelEvent->IsRightButtonPressed() ?  MK_RBUTTON  : 0) |
+          (wheelEvent->Is4thButtonPressed() ?    MK_XBUTTON1 : 0) |
+          (wheelEvent->Is5thButtonPressed() ?    MK_XBUTTON2 : 0);
+        pluginEvent.wParam = MAKEWPARAM(modifiers, delta);
+        pPluginEvent = &pluginEvent;
+        break;
+      }
+      // don't synthesize anything for eMouseDoubleClick, since that
+      // is a synthetic event generated on mouse-up, and Windows WM_*DBLCLK
+      // messages are sent on mouse-down
+      default:
+        break;
+      }
+      if (pluginEvent.event && initWParamWithCurrentState) {
+        pPluginEvent = &pluginEvent;
+        pluginEvent.wParam =
+          (::GetKeyState(VK_CONTROL) ? MK_CONTROL : 0) |
+          (::GetKeyState(VK_SHIFT) ? MK_SHIFT : 0) |
+          (::GetKeyState(VK_LBUTTON) ? MK_LBUTTON : 0) |
+          (::GetKeyState(VK_MBUTTON) ? MK_MBUTTON : 0) |
+          (::GetKeyState(VK_RBUTTON) ? MK_RBUTTON : 0) |
+          (::GetKeyState(VK_XBUTTON1) ? MK_XBUTTON1 : 0) |
+          (::GetKeyState(VK_XBUTTON2) ? MK_XBUTTON2 : 0);
+      }
+    }
+    if (pPluginEvent) {
+      // Make event coordinates relative to our enclosing widget,
+      // not the widget they were received on.
+      // See use of NPEvent in widget/windows/nsWindow.cpp
+      // for why this assert should be safe
+      NS_ASSERTION(anEvent.mMessage == eMouseDown ||
+                   anEvent.mMessage == eMouseUp ||
+                   anEvent.mMessage == eMouseDoubleClick ||
+                   anEvent.mMessage == eMouseOver ||
+                   anEvent.mMessage == eMouseOut ||
+                   anEvent.mMessage == eMouseMove ||
+                   anEvent.mMessage == eWheel,
+                   "Incorrect event type for coordinate translation");
+      nsPoint pt =
+        nsLayoutUtils::GetEventCoordinatesRelativeTo(&anEvent, mPluginFrame) -
+        mPluginFrame->GetContentRectRelativeToSelf().TopLeft();
+      nsPresContext* presContext = mPluginFrame->PresContext();
+      nsIntPoint ptPx(presContext->AppUnitsToDevPixels(pt.x),
+                      presContext->AppUnitsToDevPixels(pt.y));
+      nsIntPoint widgetPtPx = ptPx + mPluginFrame->GetWindowOriginInPixels(true);
+      const_cast<NPEvent*>(pPluginEvent)->lParam = MAKELPARAM(widgetPtPx.x, widgetPtPx.y);
+    }
+  }
+  else if (!pPluginEvent) {
+    switch (anEvent.mMessage) {
+      case eFocus:
+        pluginEvent.event = WM_SETFOCUS;
+        pluginEvent.wParam = 0;
+        pluginEvent.lParam = 0;
+        pPluginEvent = &pluginEvent;
+        break;
+      case eBlur:
+        pluginEvent.event = WM_KILLFOCUS;
+        pluginEvent.wParam = 0;
+        pluginEvent.lParam = 0;
+        pPluginEvent = &pluginEvent;
+        break;
+      default:
+        break;
+    }
+  }
+
+  if (pPluginEvent && !pPluginEvent->event) {
+    // Don't send null events to plugins.
+    NS_WARNING("nsPluginFrame ProcessEvent: trying to send null event to plugin.");
+    return rv;
+  }
+
+  if (pPluginEvent) {
+    int16_t response = kNPEventNotHandled;
+    mInstance->HandleEvent(const_cast<NPEvent*>(pPluginEvent),
+                           &response,
+                           NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+    if (response == kNPEventHandled)
+      rv = nsEventStatus_eConsumeNoDefault;
+  }
+#endif
+
+#ifdef MOZ_X11
+  // this code supports windowless plugins
+  nsIWidget* widget = anEvent.mWidget;
+  XEvent pluginEvent = XEvent();
+  pluginEvent.type = 0;
+
+  switch(anEvent.mClass) {
+    case eMouseEventClass:
+      {
+        switch (anEvent.mMessage) {
+          case eMouseClick:
+          case eMouseDoubleClick:
+            // Button up/down events sent instead.
+            return rv;
+          default:
+            break;
+          }
+
+        // Get reference point relative to plugin origin.
+        const nsPresContext* presContext = mPluginFrame->PresContext();
+        nsPoint appPoint =
+          nsLayoutUtils::GetEventCoordinatesRelativeTo(&anEvent, mPluginFrame) -
+          mPluginFrame->GetContentRectRelativeToSelf().TopLeft();
+        nsIntPoint pluginPoint(presContext->AppUnitsToDevPixels(appPoint.x),
+                               presContext->AppUnitsToDevPixels(appPoint.y));
+        const WidgetMouseEvent& mouseEvent = *anEvent.AsMouseEvent();
+        // Get reference point relative to screen:
+        LayoutDeviceIntPoint rootPoint(-1, -1);
+        if (widget) {
+          rootPoint = anEvent.mRefPoint + widget->WidgetToScreenOffset();
+        }
+#ifdef MOZ_WIDGET_GTK
+        Window root = GDK_ROOT_WINDOW();
+#else
+        Window root = X11None; // Could XQueryTree, but this is not important.
+#endif
+
+        switch (anEvent.mMessage) {
+          case eMouseOver:
+          case eMouseOut:
+            {
+              XCrossingEvent& event = pluginEvent.xcrossing;
+              event.type = anEvent.mMessage == eMouseOver ?
+                EnterNotify : LeaveNotify;
+              event.root = root;
+              event.time = anEvent.mTime;
+              event.x = pluginPoint.x;
+              event.y = pluginPoint.y;
+              event.x_root = rootPoint.x;
+              event.y_root = rootPoint.y;
+              event.state = XInputEventState(mouseEvent);
+              // information lost
+              event.subwindow = X11None;
+              event.mode = -1;
+              event.detail = NotifyDetailNone;
+              event.same_screen = True;
+              event.focus = mContentFocused;
+            }
+            break;
+          case eMouseMove:
+            {
+              XMotionEvent& event = pluginEvent.xmotion;
+              event.type = MotionNotify;
+              event.root = root;
+              event.time = anEvent.mTime;
+              event.x = pluginPoint.x;
+              event.y = pluginPoint.y;
+              event.x_root = rootPoint.x;
+              event.y_root = rootPoint.y;
+              event.state = XInputEventState(mouseEvent);
+              // information lost
+              event.subwindow = X11None;
+              event.is_hint = NotifyNormal;
+              event.same_screen = True;
+            }
+            break;
+          case eMouseDown:
+          case eMouseUp:
+            {
+              XButtonEvent& event = pluginEvent.xbutton;
+              event.type = anEvent.mMessage == eMouseDown ?
+                ButtonPress : ButtonRelease;
+              event.root = root;
+              event.time = anEvent.mTime;
+              event.x = pluginPoint.x;
+              event.y = pluginPoint.y;
+              event.x_root = rootPoint.x;
+              event.y_root = rootPoint.y;
+              event.state = XInputEventState(mouseEvent);
+              switch (mouseEvent.button)
+                {
+                case WidgetMouseEvent::eMiddleButton:
+                  event.button = 2;
+                  break;
+                case WidgetMouseEvent::eRightButton:
+                  event.button = 3;
+                  break;
+                default: // WidgetMouseEvent::eLeftButton;
+                  event.button = 1;
+                  break;
+                }
+              // information lost:
+              event.subwindow = X11None;
+              event.same_screen = True;
+            }
+            break;
+          default:
+            break;
+          }
+      }
+      break;
+
+   //XXX case eMouseScrollEventClass: not received.
+
+   case eKeyboardEventClass:
+      if (anEvent.mPluginEvent)
+        {
+          XKeyEvent &event = pluginEvent.xkey;
+#ifdef MOZ_WIDGET_GTK
+          event.root = GDK_ROOT_WINDOW();
+          event.time = anEvent.mTime;
+          const GdkEventKey* gdkEvent =
+            static_cast<const GdkEventKey*>(anEvent.mPluginEvent);
+          event.keycode = gdkEvent->hardware_keycode;
+          event.state = gdkEvent->state;
+          switch (anEvent.mMessage)
+            {
+            case eKeyDown:
+              // Handle eKeyDown for modifier key presses
+              // For non-modifiers we get eKeyPress
+              if (gdkEvent->is_modifier)
+                event.type = XKeyPress;
+              break;
+            case eKeyPress:
+              event.type = XKeyPress;
+              break;
+            case eKeyUp:
+              event.type = KeyRelease;
+              break;
+            default:
+              break;
+            }
+#endif
+
+          // Information that could be obtained from pluginEvent but we may not
+          // want to promise to provide:
+          event.subwindow = X11None;
+          event.x = 0;
+          event.y = 0;
+          event.x_root = -1;
+          event.y_root = -1;
+          event.same_screen = False;
+        }
+      else
+        {
+          // If we need to send synthesized key events, then
+          // DOMKeyCodeToGdkKeyCode(keyEvent.keyCode) and
+          // gdk_keymap_get_entries_for_keyval will be useful, but the
+          // mappings will not be unique.
+          NS_WARNING("Synthesized key event not sent to plugin");
+        }
+      break;
+
+    default:
+      switch (anEvent.mMessage) {
+        case eFocus:
+        case eBlur:
+          {
+            XFocusChangeEvent &event = pluginEvent.xfocus;
+            event.type = anEvent.mMessage == eFocus ? FocusIn : FocusOut;
+            // information lost:
+            event.mode = -1;
+            event.detail = NotifyDetailNone;
+          }
+          break;
+        default:
+          break;
+      }
+    }
+
+  if (!pluginEvent.type) {
+    return rv;
+  }
+
+  // Fill in (useless) generic event information.
+  XAnyEvent& event = pluginEvent.xany;
+  event.display = widget ?
+    static_cast<Display*>(widget->GetNativeData(NS_NATIVE_DISPLAY)) : nullptr;
+  event.window = X11None; // not a real window
+  // information lost:
+  event.serial = 0;
+  event.send_event = False;
+
+  int16_t response = kNPEventNotHandled;
+  mInstance->HandleEvent(&pluginEvent, &response, NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+  if (response == kNPEventHandled)
+    rv = nsEventStatus_eConsumeNoDefault;
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+  // this code supports windowless plugins
+  {
+    // The plugin needs focus to receive keyboard and touch events
+    nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+    if (fm) {
+      nsCOMPtr<nsIDOMElement> elem = do_QueryReferent(mContent);
+      fm->SetFocus(elem, 0);
+    }
+  }
+  switch(anEvent.mClass) {
+    case eMouseEventClass:
+      {
+        switch (anEvent.mMessage) {
+          case eMouseClick:
+          case eMouseDoubleClick:
+            // Button up/down events sent instead.
+            return rv;
+          default:
+            break;
+          }
+
+        // Get reference point relative to plugin origin.
+        const nsPresContext* presContext = mPluginFrame->PresContext();
+        nsPoint appPoint =
+          nsLayoutUtils::GetEventCoordinatesRelativeTo(&anEvent, mPluginFrame) -
+          mPluginFrame->GetContentRectRelativeToSelf().TopLeft();
+        nsIntPoint pluginPoint(presContext->AppUnitsToDevPixels(appPoint.x),
+                               presContext->AppUnitsToDevPixels(appPoint.y));
+
+        switch (anEvent.mMessage) {
+          case eMouseMove:
+            {
+              // are these going to be touch events?
+              // pluginPoint.x;
+              // pluginPoint.y;
+            }
+            break;
+          case eMouseDown:
+            {
+              ANPEvent event;
+              event.inSize = sizeof(ANPEvent);
+              event.eventType = kMouse_ANPEventType;
+              event.data.mouse.action = kDown_ANPMouseAction;
+              event.data.mouse.x = pluginPoint.x;
+              event.data.mouse.y = pluginPoint.y;
+              mInstance->HandleEvent(&event, nullptr, NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+            }
+            break;
+          case eMouseUp:
+            {
+              ANPEvent event;
+              event.inSize = sizeof(ANPEvent);
+              event.eventType = kMouse_ANPEventType;
+              event.data.mouse.action = kUp_ANPMouseAction;
+              event.data.mouse.x = pluginPoint.x;
+              event.data.mouse.y = pluginPoint.y;
+              mInstance->HandleEvent(&event, nullptr, NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+            }
+            break;
+          default:
+            break;
+          }
+      }
+      break;
+
+    case eKeyboardEventClass:
+     {
+       const WidgetKeyboardEvent& keyEvent = *anEvent.AsKeyboardEvent();
+       LOG("Firing eKeyboardEventClass %d %d\n",
+           keyEvent.mKeyCode, keyEvent.mCharCode);
+       // pluginEvent is initialized by nsWindow::InitKeyEvent().
+       const ANPEvent* pluginEvent = static_cast<const ANPEvent*>(keyEvent.mPluginEvent);
+       if (pluginEvent) {
+         MOZ_ASSERT(pluginEvent->inSize == sizeof(ANPEvent));
+         MOZ_ASSERT(pluginEvent->eventType == kKey_ANPEventType);
+         mInstance->HandleEvent(const_cast<ANPEvent*>(pluginEvent),
+                                nullptr,
+                                NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+       }
+     }
+     break;
+
+    default:
+      break;
+    }
+    rv = nsEventStatus_eConsumeNoDefault;
+#endif
+
+  return rv;
+}
+
+nsresult
+nsPluginInstanceOwner::Destroy()
+{
+  SetFrame(nullptr);
+
+#ifdef XP_MACOSX
+  RemoveFromCARefreshTimer();
+#endif
+
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+
+  // unregister context menu listener
+  if (mCXMenuListener) {
+    mCXMenuListener->Destroy(content);
+    mCXMenuListener = nullptr;
+  }
+
+  content->RemoveEventListener(NS_LITERAL_STRING("focus"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("blur"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("mouseup"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("mousedown"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("mousemove"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("click"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("dblclick"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("mouseover"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("mouseout"), this, false);
+  content->RemoveEventListener(NS_LITERAL_STRING("keypress"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("keydown"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("keyup"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("drop"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("drag"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragenter"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragover"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragleave"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragexit"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragstart"), this, true);
+  content->RemoveEventListener(NS_LITERAL_STRING("dragend"), this, true);
+  content->RemoveSystemEventListener(NS_LITERAL_STRING("compositionstart"),
+                                     this, true);
+  content->RemoveSystemEventListener(NS_LITERAL_STRING("compositionend"),
+                                     this, true);
+  content->RemoveSystemEventListener(NS_LITERAL_STRING("text"), this, true);
+
+#if MOZ_WIDGET_ANDROID
+  RemovePluginView();
+#endif
+
+  if (mWidget) {
+    if (mPluginWindow) {
+      mPluginWindow->SetPluginWidget(nullptr);
+    }
+
+    nsCOMPtr<nsIPluginWidget> pluginWidget = do_QueryInterface(mWidget);
+    if (pluginWidget) {
+      pluginWidget->SetPluginInstanceOwner(nullptr);
+    }
+    mWidget->Destroy();
+  }
+
+  return NS_OK;
+}
+
+// Paints are handled differently, so we just simulate an update event.
+
+#ifdef XP_MACOSX
+void nsPluginInstanceOwner::Paint(const gfxRect& aDirtyRect, CGContextRef cgContext)
+{
+  if (!mInstance || !mPluginFrame)
+    return;
+
+  gfxRect dirtyRectCopy = aDirtyRect;
+  double scaleFactor = 1.0;
+  GetContentsScaleFactor(&scaleFactor);
+  if (scaleFactor != 1.0) {
+    ::CGContextScaleCTM(cgContext, scaleFactor, scaleFactor);
+    // Convert aDirtyRect from device pixels to "display pixels"
+    // for HiDPI modes
+    dirtyRectCopy.ScaleRoundOut(1.0 / scaleFactor);
+  }
+
+  DoCocoaEventDrawRect(dirtyRectCopy, cgContext);
+}
+
+void nsPluginInstanceOwner::DoCocoaEventDrawRect(const gfxRect& aDrawRect, CGContextRef cgContext)
+{
+  if (!mInstance || !mPluginFrame)
+    return;
+
+  // The context given here is only valid during the HandleEvent call.
+  NPCocoaEvent updateEvent;
+  InitializeNPCocoaEvent(&updateEvent);
+  updateEvent.type = NPCocoaEventDrawRect;
+  updateEvent.data.draw.context = cgContext;
+  updateEvent.data.draw.x = aDrawRect.X();
+  updateEvent.data.draw.y = aDrawRect.Y();
+  updateEvent.data.draw.width = aDrawRect.Width();
+  updateEvent.data.draw.height = aDrawRect.Height();
+
+  mInstance->HandleEvent(&updateEvent, nullptr);
+}
+#endif
+
+#ifdef XP_WIN
+void nsPluginInstanceOwner::Paint(const RECT& aDirty, HDC aDC)
+{
+  if (!mInstance || !mPluginFrame)
+    return;
+
+  NPEvent pluginEvent;
+  pluginEvent.event = WM_PAINT;
+  pluginEvent.wParam = WPARAM(aDC);
+  pluginEvent.lParam = LPARAM(&aDirty);
+  mInstance->HandleEvent(&pluginEvent, nullptr);
+}
+#endif
+
+#ifdef MOZ_WIDGET_ANDROID
+
+void nsPluginInstanceOwner::Paint(gfxContext* aContext,
+                                  const gfxRect& aFrameRect,
+                                  const gfxRect& aDirtyRect)
+{
+  if (!mInstance || !mPluginFrame || !mPluginDocumentActiveState || mFullScreen)
+    return;
+
+  int32_t model = mInstance->GetANPDrawingModel();
+
+  if (model == kSurface_ANPDrawingModel) {
+    if (!AddPluginView(GetPluginRect())) {
+      Invalidate();
+    }
+    return;
+  }
+
+  if (model != kBitmap_ANPDrawingModel)
+    return;
+
+#ifdef ANP_BITMAP_DRAWING_MODEL
+  static RefPtr<gfxImageSurface> pluginSurface;
+
+  if (pluginSurface == nullptr ||
+      aFrameRect.width  != pluginSurface->Width() ||
+      aFrameRect.height != pluginSurface->Height()) {
+
+    pluginSurface = new gfxImageSurface(gfx::IntSize(aFrameRect.width, aFrameRect.height),
+                                        SurfaceFormat::A8R8G8B8_UINT32);
+    if (!pluginSurface)
+      return;
+  }
+
+  // Clears buffer.  I think this is needed.
+  gfxUtils::ClearThebesSurface(pluginSurface);
+
+  ANPEvent event;
+  event.inSize = sizeof(ANPEvent);
+  event.eventType = 4;
+  event.data.draw.model = 1;
+
+  event.data.draw.clip.top     = 0;
+  event.data.draw.clip.left    = 0;
+  event.data.draw.clip.bottom  = aFrameRect.width;
+  event.data.draw.clip.right   = aFrameRect.height;
+
+  event.data.draw.data.bitmap.format   = kRGBA_8888_ANPBitmapFormat;
+  event.data.draw.data.bitmap.width    = aFrameRect.width;
+  event.data.draw.data.bitmap.height   = aFrameRect.height;
+  event.data.draw.data.bitmap.baseAddr = pluginSurface->Data();
+  event.data.draw.data.bitmap.rowBytes = aFrameRect.width * 4;
+
+  if (!mInstance)
+    return;
+
+  mInstance->HandleEvent(&event, nullptr);
+
+  aContext->SetOp(gfx::CompositionOp::OP_SOURCE);
+  aContext->SetSource(pluginSurface, gfxPoint(aFrameRect.x, aFrameRect.y));
+  aContext->Clip(aFrameRect);
+  aContext->Paint();
+#endif
+}
+#endif
+
+#if defined(MOZ_X11)
+void nsPluginInstanceOwner::Paint(gfxContext* aContext,
+                                  const gfxRect& aFrameRect,
+                                  const gfxRect& aDirtyRect)
+{
+  if (!mInstance || !mPluginFrame)
+    return;
+
+  // to provide crisper and faster drawing.
+  gfxRect pluginRect = aFrameRect;
+  if (aContext->UserToDevicePixelSnapped(pluginRect)) {
+    pluginRect = aContext->DeviceToUser(pluginRect);
+  }
+
+  // Round out the dirty rect to plugin pixels to ensure the plugin draws
+  // enough pixels for interpolation to device pixels.
+  gfxRect dirtyRect = aDirtyRect - pluginRect.TopLeft();
+  dirtyRect.RoundOut();
+
+  // Plugins can only draw an integer number of pixels.
+  //
+  // With translation-only transformation matrices, pluginRect is already
+  // pixel-aligned.
+  //
+  // With more complex transformations, modifying the scales in the
+  // transformation matrix could retain subpixel accuracy and let the plugin
+  // draw a suitable number of pixels for interpolation to device pixels in
+  // Renderer::Draw, but such cases are not common enough to warrant the
+  // effort now.
+  nsIntSize pluginSize(NS_lround(pluginRect.width),
+                       NS_lround(pluginRect.height));
+
+  // Determine what the plugin needs to draw.
+  nsIntRect pluginDirtyRect(int32_t(dirtyRect.x),
+                            int32_t(dirtyRect.y),
+                            int32_t(dirtyRect.width),
+                            int32_t(dirtyRect.height));
+  if (!pluginDirtyRect.
+      IntersectRect(nsIntRect(0, 0, pluginSize.width, pluginSize.height),
+                    pluginDirtyRect))
+    return;
+
+  NPWindow* window;
+  GetWindow(window);
+
+  uint32_t rendererFlags = 0;
+  if (!mFlash10Quirks) {
+    rendererFlags |=
+      Renderer::DRAW_SUPPORTS_CLIP_RECT |
+      Renderer::DRAW_SUPPORTS_ALTERNATE_VISUAL;
+  }
+
+  bool transparent;
+  mInstance->IsTransparent(&transparent);
+  if (!transparent)
+    rendererFlags |= Renderer::DRAW_IS_OPAQUE;
+
+  // Renderer::Draw() draws a rectangle with top-left at the aContext origin.
+  gfxContextAutoSaveRestore autoSR(aContext);
+  aContext->SetMatrix(
+    aContext->CurrentMatrix().Translate(pluginRect.TopLeft()));
+
+  Renderer renderer(window, this, pluginSize, pluginDirtyRect);
+
+  Display* dpy = mozilla::DefaultXDisplay();
+  Screen* screen = DefaultScreenOfDisplay(dpy);
+  Visual* visual = DefaultVisualOfScreen(screen);
+
+  renderer.Draw(aContext, nsIntSize(window->width, window->height),
+                rendererFlags, screen, visual);
+}
+nsresult
+nsPluginInstanceOwner::Renderer::DrawWithXlib(cairo_surface_t* xsurface,
+                                              nsIntPoint offset,
+                                              nsIntRect *clipRects,
+                                              uint32_t numClipRects)
+{
+  Screen *screen = cairo_xlib_surface_get_screen(xsurface);
+  Colormap colormap;
+  Visual* visual;
+  if (!gfxXlibSurface::GetColormapAndVisual(xsurface, &colormap, &visual)) {
+    NS_ERROR("Failed to get visual and colormap");
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  nsNPAPIPluginInstance *instance = mInstanceOwner->mInstance;
+  if (!instance)
+    return NS_ERROR_FAILURE;
+
+  // See if the plugin must be notified of new window parameters.
+  bool doupdatewindow = false;
+
+  if (mWindow->x != offset.x || mWindow->y != offset.y) {
+    mWindow->x = offset.x;
+    mWindow->y = offset.y;
+    doupdatewindow = true;
+  }
+
+  if (nsIntSize(mWindow->width, mWindow->height) != mPluginSize) {
+    mWindow->width = mPluginSize.width;
+    mWindow->height = mPluginSize.height;
+    doupdatewindow = true;
+  }
+
+  // The clip rect is relative to drawable top-left.
+  NS_ASSERTION(numClipRects <= 1, "We don't support multiple clip rectangles!");
+  nsIntRect clipRect;
+  if (numClipRects) {
+    clipRect.x = clipRects[0].x;
+    clipRect.y = clipRects[0].y;
+    clipRect.width  = clipRects[0].width;
+    clipRect.height = clipRects[0].height;
+    // NPRect members are unsigned, but clip rectangles should be contained by
+    // the surface.
+    NS_ASSERTION(clipRect.x >= 0 && clipRect.y >= 0,
+                 "Clip rectangle offsets are negative!");
+  }
+  else {
+    clipRect.x = offset.x;
+    clipRect.y = offset.y;
+    clipRect.width  = mWindow->width;
+    clipRect.height = mWindow->height;
+    // Don't ask the plugin to draw outside the drawable.
+    // This also ensures that the unsigned clip rectangle offsets won't be -ve.
+    clipRect.IntersectRect(clipRect,
+                           nsIntRect(0, 0,
+                                     cairo_xlib_surface_get_width(xsurface),
+                                     cairo_xlib_surface_get_height(xsurface)));
+  }
+
+  NPRect newClipRect;
+  newClipRect.left = clipRect.x;
+  newClipRect.top = clipRect.y;
+  newClipRect.right = clipRect.XMost();
+  newClipRect.bottom = clipRect.YMost();
+  if (mWindow->clipRect.left    != newClipRect.left   ||
+      mWindow->clipRect.top     != newClipRect.top    ||
+      mWindow->clipRect.right   != newClipRect.right  ||
+      mWindow->clipRect.bottom  != newClipRect.bottom) {
+    mWindow->clipRect = newClipRect;
+    doupdatewindow = true;
+  }
+
+  NPSetWindowCallbackStruct* ws_info =
+    static_cast<NPSetWindowCallbackStruct*>(mWindow->ws_info);
+#ifdef MOZ_X11
+  if (ws_info->visual != visual || ws_info->colormap != colormap) {
+    ws_info->visual = visual;
+    ws_info->colormap = colormap;
+    ws_info->depth = gfxXlibSurface::DepthOfVisual(screen, visual);
+    doupdatewindow = true;
+  }
+#endif
+
+  {
+    if (doupdatewindow)
+      instance->SetWindow(mWindow);
+  }
+
+  // Translate the dirty rect to drawable coordinates.
+  nsIntRect dirtyRect = mDirtyRect + offset;
+  if (mInstanceOwner->mFlash10Quirks) {
+    // Work around a bug in Flash up to 10.1 d51 at least, where expose event
+    // top left coordinates within the plugin-rect and not at the drawable
+    // origin are misinterpreted.  (We can move the top left coordinate
+    // provided it is within the clipRect.)
+    dirtyRect.SetRect(offset.x, offset.y,
+                      mDirtyRect.XMost(), mDirtyRect.YMost());
+  }
+  // Intersect the dirty rect with the clip rect to ensure that it lies within
+  // the drawable.
+  if (!dirtyRect.IntersectRect(dirtyRect, clipRect))
+    return NS_OK;
+
+  {
+    XEvent pluginEvent = XEvent();
+    XGraphicsExposeEvent& exposeEvent = pluginEvent.xgraphicsexpose;
+    // set the drawing info
+    exposeEvent.type = GraphicsExpose;
+    exposeEvent.display = DisplayOfScreen(screen);
+    exposeEvent.drawable = cairo_xlib_surface_get_drawable(xsurface);
+    exposeEvent.x = dirtyRect.x;
+    exposeEvent.y = dirtyRect.y;
+    exposeEvent.width  = dirtyRect.width;
+    exposeEvent.height = dirtyRect.height;
+    exposeEvent.count = 0;
+    // information not set:
+    exposeEvent.serial = 0;
+    exposeEvent.send_event = False;
+    exposeEvent.major_code = 0;
+    exposeEvent.minor_code = 0;
+
+    instance->HandleEvent(&pluginEvent, nullptr);
+  }
+  return NS_OK;
+}
+#endif
+
+nsresult nsPluginInstanceOwner::Init(nsIContent* aContent)
+{
+  mLastEventloopNestingLevel = GetEventloopNestingLevel();
+
+  mContent = do_GetWeakReference(aContent);
+
+  // Get a frame, don't reflow. If a reflow was necessary it should have been
+  // done at a higher level than this (content).
+  nsIFrame* frame = aContent->GetPrimaryFrame();
+  nsIObjectFrame* iObjFrame = do_QueryFrame(frame);
+  nsPluginFrame* objFrame =  static_cast<nsPluginFrame*>(iObjFrame);
+  if (objFrame) {
+    SetFrame(objFrame);
+    // Some plugins require a specific sequence of shutdown and startup when
+    // a page is reloaded. Shutdown happens usually when the last instance
+    // is destroyed. Here we make sure the plugin instance in the old
+    // document is destroyed before we try to create the new one.
+    objFrame->PresContext()->EnsureVisible();
+  } else {
+    NS_NOTREACHED("Should not be initializing plugin without a frame");
+    return NS_ERROR_FAILURE;
+  }
+
+  // register context menu listener
+  mCXMenuListener = new nsPluginDOMContextMenuListener(aContent);
+
+  aContent->AddEventListener(NS_LITERAL_STRING("focus"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("blur"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("mouseup"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("mousedown"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("mousemove"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("click"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("dblclick"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("mouseover"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("mouseout"), this, false,
+                             false);
+  aContent->AddEventListener(NS_LITERAL_STRING("keypress"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("keydown"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("keyup"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("drop"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("drag"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragenter"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragover"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragleave"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragexit"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragstart"), this, true);
+  aContent->AddEventListener(NS_LITERAL_STRING("dragend"), this, true);
+  aContent->AddSystemEventListener(NS_LITERAL_STRING("compositionstart"),
+    this, true);
+  aContent->AddSystemEventListener(NS_LITERAL_STRING("compositionend"), this,
+    true);
+  aContent->AddSystemEventListener(NS_LITERAL_STRING("text"), this, true);
+
+  return NS_OK;
+}
+
+void* nsPluginInstanceOwner::GetPluginPort()
+{
+  void* result = nullptr;
+  if (mWidget) {
+#ifdef XP_WIN
+    if (!mPluginWindow || mPluginWindow->type == NPWindowTypeWindow)
+#endif
+      result = mWidget->GetNativeData(NS_NATIVE_PLUGIN_PORT); // HWND/gdk window
+  }
+
+  return result;
+}
+
+void nsPluginInstanceOwner::ReleasePluginPort(void * pluginPort)
+{
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::CreateWidget(void)
+{
+  NS_ENSURE_TRUE(mPluginWindow, NS_ERROR_NULL_POINTER);
+
+  nsresult rv = NS_ERROR_FAILURE;
+
+  // Can't call this twice!
+  if (mWidget) {
+    NS_WARNING("Trying to create a plugin widget twice!");
+    return NS_ERROR_FAILURE;
+  }
+
+  bool windowless = false;
+  mInstance->IsWindowless(&windowless);
+  if (!windowless) {
+    // Try to get a parent widget, on some platforms widget creation will fail without
+    // a parent.
+    nsCOMPtr<nsIWidget> parentWidget;
+    nsIDocument *doc = nullptr;
+    nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+    if (content) {
+      doc = content->OwnerDoc();
+      parentWidget = nsContentUtils::WidgetForDocument(doc);
+#ifndef XP_MACOSX
+      // If we're running in the content process, we need a remote widget created in chrome.
+      if (XRE_IsContentProcess()) {
+        if (nsCOMPtr<nsPIDOMWindowOuter> window = doc->GetWindow()) {
+          if (nsCOMPtr<nsPIDOMWindowOuter> topWindow = window->GetTop()) {
+            dom::TabChild* tc = dom::TabChild::GetFrom(topWindow);
+            if (tc) {
+              // This returns a PluginWidgetProxy which remotes a number of calls.
+              rv = tc->CreatePluginWidget(parentWidget.get(), getter_AddRefs(mWidget));
+              if (NS_FAILED(rv)) {
+                return rv;
+              }
+            }
+          }
+        }
+      }
+#endif // XP_MACOSX
+    }
+
+#ifndef XP_MACOSX
+    // A failure here is terminal since we can't fall back on the non-e10s code
+    // path below.
+    if (!mWidget && XRE_IsContentProcess()) {
+      return NS_ERROR_UNEXPECTED;
+    }
+#endif // XP_MACOSX
+
+    if (!mWidget) {
+      // native (single process)
+      mWidget = do_CreateInstance(kWidgetCID, &rv);
+      nsWidgetInitData initData;
+      initData.mWindowType = eWindowType_plugin;
+      initData.mUnicode = false;
+      initData.clipChildren = true;
+      initData.clipSiblings = true;
+      rv = mWidget->Create(parentWidget.get(), nullptr,
+                           LayoutDeviceIntRect(0, 0, 0, 0), &initData);
+      if (NS_FAILED(rv)) {
+        mWidget->Destroy();
+        mWidget = nullptr;
+        return rv;
+      }
+    }
+
+    mWidget->EnableDragDrop(true);
+    mWidget->Show(false);
+    mWidget->Enable(false);
+  }
+
+  if (mPluginFrame) {
+    // nullptr widget is fine, will result in windowless setup.
+    mPluginFrame->PrepForDrawing(mWidget);
+  }
+
+  if (windowless) {
+    mPluginWindow->type = NPWindowTypeDrawable;
+
+    // this needs to be a HDC according to the spec, but I do
+    // not see the right way to release it so let's postpone
+    // passing HDC till paint event when it is really
+    // needed. Change spec?
+    mPluginWindow->window = nullptr;
+#ifdef MOZ_X11
+    // Fill in the display field.
+    NPSetWindowCallbackStruct* ws_info =
+    static_cast<NPSetWindowCallbackStruct*>(mPluginWindow->ws_info);
+    ws_info->display = DefaultXDisplay();
+
+    nsAutoCString description;
+    GetPluginDescription(description);
+    NS_NAMED_LITERAL_CSTRING(flash10Head, "Shockwave Flash 10.");
+    mFlash10Quirks = StringBeginsWith(description, flash10Head);
+#endif
+  } else if (mWidget) {
+    // mPluginWindow->type is used in |GetPluginPort| so it must
+    // be initialized first
+    mPluginWindow->type = NPWindowTypeWindow;
+    mPluginWindow->window = GetPluginPort();
+    // tell the plugin window about the widget
+    mPluginWindow->SetPluginWidget(mWidget);
+
+    // tell the widget about the current plugin instance owner.
+    nsCOMPtr<nsIPluginWidget> pluginWidget = do_QueryInterface(mWidget);
+    if (pluginWidget) {
+      pluginWidget->SetPluginInstanceOwner(this);
+    }
+  }
+
+#ifdef XP_MACOSX
+  if (GetDrawingModel() == NPDrawingModelCoreAnimation) {
+    AddToCARefreshTimer();
+  }
+#endif
+
+  mWidgetCreationComplete = true;
+
+  return NS_OK;
+}
+
+// Mac specific code to fix up the port location and clipping region
+#ifdef XP_MACOSX
+
+void nsPluginInstanceOwner::FixUpPluginWindow(int32_t inPaintState)
+{
+  if (!mPluginWindow || !mInstance || !mPluginFrame) {
+    return;
+  }
+
+  SetPluginPort();
+
+  LayoutDeviceIntSize widgetClip = mPluginFrame->GetWidgetlessClipRect().Size();
+
+  mPluginWindow->x = 0;
+  mPluginWindow->y = 0;
+
+  NPRect oldClipRect = mPluginWindow->clipRect;
+
+  // fix up the clipping region
+  mPluginWindow->clipRect.top  = 0;
+  mPluginWindow->clipRect.left = 0;
+
+  if (inPaintState == ePluginPaintDisable) {
+    mPluginWindow->clipRect.bottom = mPluginWindow->clipRect.top;
+    mPluginWindow->clipRect.right  = mPluginWindow->clipRect.left;
+  }
+  else if (inPaintState == ePluginPaintEnable)
+  {
+    mPluginWindow->clipRect.bottom = mPluginWindow->clipRect.top + widgetClip.height;
+    mPluginWindow->clipRect.right  = mPluginWindow->clipRect.left + widgetClip.width;
+  }
+
+  // if the clip rect changed, call SetWindow()
+  // (RealPlayer needs this to draw correctly)
+  if (mPluginWindow->clipRect.left    != oldClipRect.left   ||
+      mPluginWindow->clipRect.top     != oldClipRect.top    ||
+      mPluginWindow->clipRect.right   != oldClipRect.right  ||
+      mPluginWindow->clipRect.bottom  != oldClipRect.bottom)
+  {
+    if (UseAsyncRendering()) {
+      mInstance->AsyncSetWindow(mPluginWindow);
+    }
+    else {
+      mPluginWindow->CallSetWindow(mInstance);
+    }
+  }
+
+  // After the first NPP_SetWindow call we need to send an initial
+  // top-level window focus event.
+  if (!mSentInitialTopLevelWindowEvent) {
+    // Set this before calling ProcessEvent to avoid endless recursion.
+    mSentInitialTopLevelWindowEvent = true;
+
+    bool isActive = WindowIsActive();
+    SendWindowFocusChanged(isActive);
+    mLastWindowIsActive = isActive;
+  }
+}
+
+void
+nsPluginInstanceOwner::WindowFocusMayHaveChanged()
+{
+  if (!mSentInitialTopLevelWindowEvent) {
+    return;
+  }
+
+  bool isActive = WindowIsActive();
+  if (isActive != mLastWindowIsActive) {
+    SendWindowFocusChanged(isActive);
+    mLastWindowIsActive = isActive;
+  }
+}
+
+bool
+nsPluginInstanceOwner::WindowIsActive()
+{
+  if (!mPluginFrame) {
+    return false;
+  }
+
+  EventStates docState = mPluginFrame->GetContent()->OwnerDoc()->GetDocumentState();
+  return !docState.HasState(NS_DOCUMENT_STATE_WINDOW_INACTIVE);
+}
+
+void
+nsPluginInstanceOwner::SendWindowFocusChanged(bool aIsActive)
+{
+  if (!mInstance) {
+    return;
+  }
+
+  NPCocoaEvent cocoaEvent;
+  InitializeNPCocoaEvent(&cocoaEvent);
+  cocoaEvent.type = NPCocoaEventWindowFocusChanged;
+  cocoaEvent.data.focus.hasFocus = aIsActive;
+  mInstance->HandleEvent(&cocoaEvent,
+                         nullptr,
+                         NS_PLUGIN_CALL_SAFE_TO_REENTER_GECKO);
+}
+
+void
+nsPluginInstanceOwner::HidePluginWindow()
+{
+  if (!mPluginWindow || !mInstance) {
+    return;
+  }
+
+  mPluginWindow->clipRect.bottom = mPluginWindow->clipRect.top;
+  mPluginWindow->clipRect.right  = mPluginWindow->clipRect.left;
+  mWidgetVisible = false;
+  if (UseAsyncRendering()) {
+    mInstance->AsyncSetWindow(mPluginWindow);
+  } else {
+    mInstance->SetWindow(mPluginWindow);
+  }
+}
+
+#else // XP_MACOSX
+
+void nsPluginInstanceOwner::UpdateWindowPositionAndClipRect(bool aSetWindow)
+{
+  if (!mPluginWindow)
+    return;
+
+  // For windowless plugins a non-empty clip rectangle will be
+  // passed to the plugin during paint, an additional update
+  // of the the clip rectangle here is not required
+  if (aSetWindow && !mWidget && mPluginWindowVisible && !UseAsyncRendering())
+    return;
+
+  const NPWindow oldWindow = *mPluginWindow;
+
+  bool windowless = (mPluginWindow->type == NPWindowTypeDrawable);
+  nsIntPoint origin = mPluginFrame->GetWindowOriginInPixels(windowless);
+
+  mPluginWindow->x = origin.x;
+  mPluginWindow->y = origin.y;
+
+  mPluginWindow->clipRect.left = 0;
+  mPluginWindow->clipRect.top = 0;
+
+  if (mPluginWindowVisible && mPluginDocumentActiveState) {
+    mPluginWindow->clipRect.right = mPluginWindow->width;
+    mPluginWindow->clipRect.bottom = mPluginWindow->height;
+  } else {
+    mPluginWindow->clipRect.right = 0;
+    mPluginWindow->clipRect.bottom = 0;
+  }
+
+  if (!aSetWindow)
+    return;
+
+  if (mPluginWindow->x               != oldWindow.x               ||
+      mPluginWindow->y               != oldWindow.y               ||
+      mPluginWindow->clipRect.left   != oldWindow.clipRect.left   ||
+      mPluginWindow->clipRect.top    != oldWindow.clipRect.top    ||
+      mPluginWindow->clipRect.right  != oldWindow.clipRect.right  ||
+      mPluginWindow->clipRect.bottom != oldWindow.clipRect.bottom) {
+    CallSetWindow();
+  }
+}
+
+void
+nsPluginInstanceOwner::UpdateWindowVisibility(bool aVisible)
+{
+  mPluginWindowVisible = aVisible;
+  UpdateWindowPositionAndClipRect(true);
+}
+#endif // XP_MACOSX
+
+void
+nsPluginInstanceOwner::ResolutionMayHaveChanged()
+{
+#if defined(XP_MACOSX) || defined(XP_WIN)
+  double scaleFactor = 1.0;
+  GetContentsScaleFactor(&scaleFactor);
+  if (scaleFactor != mLastScaleFactor) {
+    ContentsScaleFactorChanged(scaleFactor);
+    mLastScaleFactor = scaleFactor;
+  }
+#endif
+  float zoomFactor = 1.0;
+  GetCSSZoomFactor(&zoomFactor);
+  if (zoomFactor != mLastCSSZoomFactor) {
+    if (mInstance) {
+      mInstance->CSSZoomFactorChanged(zoomFactor);
+    }
+    mLastCSSZoomFactor = zoomFactor;
+  }
+
+}
+
+void
+nsPluginInstanceOwner::UpdateDocumentActiveState(bool aIsActive)
+{
+  PROFILER_LABEL_FUNC(js::ProfileEntry::Category::OTHER);
+
+  mPluginDocumentActiveState = aIsActive;
+#ifndef XP_MACOSX
+  UpdateWindowPositionAndClipRect(true);
+
+#ifdef MOZ_WIDGET_ANDROID
+  if (mInstance) {
+    if (!mPluginDocumentActiveState) {
+      RemovePluginView();
+    }
+
+    mInstance->NotifyOnScreen(mPluginDocumentActiveState);
+
+    // This is, perhaps, incorrect. It is supposed to be sent
+    // when "the webview has paused or resumed". The side effect
+    // is that Flash video players pause or resume (if they were
+    // playing before) based on the value here. I personally think
+    // we want that on Android when switching to another tab, so
+    // that's why we call it here.
+    mInstance->NotifyForeground(mPluginDocumentActiveState);
+  }
+#endif // #ifdef MOZ_WIDGET_ANDROID
+
+  // We don't have a connection to PluginWidgetParent in the chrome
+  // process when dealing with tab visibility changes, so this needs
+  // to be forwarded over after the active state is updated. If we
+  // don't hide plugin widgets in hidden tabs, the native child window
+  // in chrome will remain visible after a tab switch.
+  if (mWidget && XRE_IsContentProcess()) {
+    mWidget->Show(aIsActive);
+    mWidget->Enable(aIsActive);
+  }
+#endif // #ifndef XP_MACOSX
+}
+
+NS_IMETHODIMP
+nsPluginInstanceOwner::CallSetWindow()
+{
+  if (!mWidgetCreationComplete) {
+    // No widget yet, we can't run this code
+    return NS_OK;
+  }
+  if (mPluginFrame) {
+    mPluginFrame->CallSetWindow(false);
+  } else if (mInstance) {
+    if (UseAsyncRendering()) {
+      mInstance->AsyncSetWindow(mPluginWindow);
+    } else {
+      mInstance->SetWindow(mPluginWindow);
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPluginInstanceOwner::GetContentsScaleFactor(double *result)
+{
+  NS_ENSURE_ARG_POINTER(result);
+  double scaleFactor = 1.0;
+  // On Mac, device pixels need to be translated to (and from) "display pixels"
+  // for plugins. On other platforms, plugin coordinates are always in device
+  // pixels.
+#if defined(XP_MACOSX) || defined(XP_WIN)
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  nsIPresShell* presShell = nsContentUtils::FindPresShellForDocument(content->OwnerDoc());
+  if (presShell) {
+    scaleFactor = double(nsPresContext::AppUnitsPerCSSPixel())/
+      presShell->GetPresContext()->DeviceContext()->AppUnitsPerDevPixelAtUnitFullZoom();
+  }
+#endif
+  *result = scaleFactor;
+  return NS_OK;
+}
+
+void
+nsPluginInstanceOwner::GetCSSZoomFactor(float *result)
+{
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  nsIPresShell* presShell = nsContentUtils::FindPresShellForDocument(content->OwnerDoc());
+  if (presShell) {
+    *result = presShell->GetPresContext()->DeviceContext()->GetFullZoom();
+  } else {
+    *result = 1.0;
+  }
+}
+
+void nsPluginInstanceOwner::SetFrame(nsPluginFrame *aFrame)
+{
+  // Don't do anything if the frame situation hasn't changed.
+  if (mPluginFrame == aFrame) {
+    return;
+  }
+
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+
+  // If we already have a frame that is changing or going away...
+  if (mPluginFrame) {
+    if (content && content->OwnerDoc() && content->OwnerDoc()->GetWindow()) {
+      nsCOMPtr<EventTarget> windowRoot = content->OwnerDoc()->GetWindow()->GetTopWindowRoot();
+      if (windowRoot) {
+        windowRoot->RemoveEventListener(NS_LITERAL_STRING("activate"),
+                                              this, false);
+        windowRoot->RemoveEventListener(NS_LITERAL_STRING("deactivate"),
+                                              this, false);
+        windowRoot->RemoveEventListener(NS_LITERAL_STRING("MozPerformDelayedBlur"),
+                                              this, false);
+      }
+    }
+
+    // Make sure the old frame isn't holding a reference to us.
+    mPluginFrame->SetInstanceOwner(nullptr);
+  }
+
+  // Swap in the new frame (or no frame)
+  mPluginFrame = aFrame;
+
+  // Set up a new frame
+  if (mPluginFrame) {
+    mPluginFrame->SetInstanceOwner(this);
+    // Can only call PrepForDrawing on an object frame once. Don't do it here unless
+    // widget creation is complete. Doesn't matter if we actually have a widget.
+    if (mWidgetCreationComplete) {
+      mPluginFrame->PrepForDrawing(mWidget);
+    }
+    mPluginFrame->FixupWindow(mPluginFrame->GetContentRectRelativeToSelf().Size());
+    mPluginFrame->InvalidateFrame();
+
+    nsFocusManager* fm = nsFocusManager::GetFocusManager();
+    const nsIContent* content = aFrame->GetContent();
+    if (fm && content) {
+      mContentFocused = (content == fm->GetFocusedContent());
+    }
+
+    // Register for widget-focus events on the window root.
+    if (content && content->OwnerDoc() && content->OwnerDoc()->GetWindow()) {
+      nsCOMPtr<EventTarget> windowRoot = content->OwnerDoc()->GetWindow()->GetTopWindowRoot();
+      if (windowRoot) {
+        windowRoot->AddEventListener(NS_LITERAL_STRING("activate"),
+                                           this, false, false);
+        windowRoot->AddEventListener(NS_LITERAL_STRING("deactivate"),
+                                           this, false, false);
+        windowRoot->AddEventListener(NS_LITERAL_STRING("MozPerformDelayedBlur"),
+                                           this, false, false);
+      }
+    }
+  }
+}
+
+nsPluginFrame* nsPluginInstanceOwner::GetFrame()
+{
+  return mPluginFrame;
+}
+
+NS_IMETHODIMP nsPluginInstanceOwner::PrivateModeChanged(bool aEnabled)
+{
+  return mInstance ? mInstance->PrivateModeStateChanged(aEnabled) : NS_OK;
+}
+
+already_AddRefed<nsIURI> nsPluginInstanceOwner::GetBaseURI() const
+{
+  nsCOMPtr<nsIContent> content = do_QueryReferent(mContent);
+  if (!content) {
+    return nullptr;
+  }
+  return content->GetBaseURI();
+}
+
+// static
+void
+nsPluginInstanceOwner::GeneratePluginEvent(
+  const WidgetCompositionEvent* aSrcCompositionEvent,
+  WidgetCompositionEvent* aDistCompositionEvent)
+{
+#ifdef XP_WIN
+  NPEvent newEvent;
+  switch (aDistCompositionEvent->mMessage) {
+    case eCompositionChange: {
+      newEvent.event = WM_IME_COMPOSITION;
+      newEvent.wParam = 0;
+      if (aSrcCompositionEvent &&
+          (aSrcCompositionEvent->mMessage == eCompositionCommit ||
+           aSrcCompositionEvent->mMessage == eCompositionCommitAsIs)) {
+        newEvent.lParam = GCS_RESULTSTR;
+      } else {
+        newEvent.lParam = GCS_COMPSTR | GCS_COMPATTR | GCS_COMPCLAUSE;
+      }
+      TextRangeArray* ranges = aDistCompositionEvent->mRanges;
+      if (ranges && ranges->HasCaret()) {
+        newEvent.lParam |= GCS_CURSORPOS;
+      }
+      break;
+    }
+
+    case eCompositionStart:
+      newEvent.event = WM_IME_STARTCOMPOSITION;
+      newEvent.wParam = 0;
+      newEvent.lParam = 0;
+      break;
+
+    case eCompositionEnd:
+      newEvent.event = WM_IME_ENDCOMPOSITION;
+      newEvent.wParam = 0;
+      newEvent.lParam = 0;
+      break;
+
+    default:
+      return;
+  }
+  aDistCompositionEvent->mPluginEvent.Copy(newEvent);
+#endif
+}
+
+// nsPluginDOMContextMenuListener class implementation
+
+nsPluginDOMContextMenuListener::nsPluginDOMContextMenuListener(nsIContent* aContent)
+{
+  aContent->AddEventListener(NS_LITERAL_STRING("contextmenu"), this, true);
+}
+
+nsPluginDOMContextMenuListener::~nsPluginDOMContextMenuListener()
+{
+}
+
+NS_IMPL_ISUPPORTS(nsPluginDOMContextMenuListener,
+                  nsIDOMEventListener)
+
+NS_IMETHODIMP
+nsPluginDOMContextMenuListener::HandleEvent(nsIDOMEvent* aEvent)
+{
+  aEvent->PreventDefault(); // consume event
+
+  return NS_OK;
+}
+
+void nsPluginDOMContextMenuListener::Destroy(nsIContent* aContent)
+{
+  // Unregister context menu listener
+  aContent->RemoveEventListener(NS_LITERAL_STRING("contextmenu"), this, true);
+}