Merge the fullscreen event queues

Source/core/dom/FullscreenElementStack.h

Index: Source/core/dom/FullscreenElementStack.h
diff --git a/Source/core/dom/FullscreenElementStack.h b/Source/core/dom/FullscreenElementStack.h
index 65f70ae4913fa330ecc9324de14e8873fe0cbd5e..ad7ac575d9c32fbfe7b52a8b2b01708c30586e22 100644
--- a/Source/core/dom/FullscreenElementStack.h
+++ b/Source/core/dom/FullscreenElementStack.h
@@ -105,8 +105,10 @@ private:
     void clearFullscreenElementStack();
     void popFullscreenElementStack();
     void pushFullscreenElementStack(Element&);
-    void addDocumentToFullScreenChangeEventQueue(Document&);
-    void fullScreenChangeDelayTimerFired(Timer<FullscreenElementStack>*);
+
+    void enqueueChangeEvent(Document&);
+    void enqueueErrorEvent(Element&);
+    void eventQueueTimerFired(Timer<FullscreenElementStack>*);
 
     void fullScreenElementRemoved();
 
@@ -114,9 +116,8 @@ private:
     RefPtrWillBeMember<Element> m_fullScreenElement;
     WillBeHeapVector<RefPtrWillBeMember<Element> > m_fullScreenElementStack;
     RenderFullScreen* m_fullScreenRenderer;
-    Timer<FullscreenElementStack> m_fullScreenChangeDelayTimer;
-    WillBeHeapDeque<RefPtrWillBeMember<Node> > m_fullScreenChangeEventTargetQueue;
-    WillBeHeapDeque<RefPtrWillBeMember<Node> > m_fullScreenErrorEventTargetQueue;
+    Timer<FullscreenElementStack> m_eventQueueTimer;
+    WillBeHeapDeque<RefPtrWillBeMember<Event> > m_eventQueue;
     LayoutRect m_savedPlaceholderFrameRect;
     RefPtr<RenderStyle> m_savedPlaceholderRenderStyle;
 };