Bug 663259 - Part 2: Restore Synchronous plugin rendering, with preference for async rendering. r=smichaud

dom/plugins/base/nsNPAPIPluginInstance.cpp

@@ -88,7 +88,7 @@ nsNPAPIPluginInstance::nsNPAPIPluginInstance(nsNPAPIPlugin* plugin)
     mMIMEType(nsnull),
     mOwner(nsnull),
     mCurrentPluginEvent(nsnull),
-#if defined(MOZ_X11) || defined(XP_WIN) || defined(XP_MACOSX)
+#if defined(MOZ_X11) || defined(XP_WIN)
     mUsePluginLayersPref(PR_TRUE)
 #else
     mUsePluginLayersPref(PR_FALSE)
@@ -722,6 +722,22 @@ nsresult nsNPAPIPluginInstance::GetDrawingModel(PRInt32* aModel)
 #endif
 }
 
+nsresult nsNPAPIPluginInstance::IsRemoteDrawingCoreAnimation(PRBool* aDrawing)
+{
+#ifdef XP_MACOSX
+  if (!mPlugin)
+      return NS_ERROR_FAILURE;
+
+  PluginLibrary* library = mPlugin->GetLibrary();
+  if (!library)
+      return NS_ERROR_FAILURE;
+  
+  return library->IsRemoteDrawingCoreAnimation(&mNPP, aDrawing);
+#else
+  return NS_ERROR_FAILURE;
+#endif
+}
+
 nsresult
 nsNPAPIPluginInstance::GetJSObject(JSContext *cx, JSObject** outObject)
 {