Merge the fullscreen event queues

Source/core/dom/FullscreenElementStack.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 87 matching lines @@
 private:
     static FullscreenElementStack* fromIfExistsSlow(Document&);
 
     explicit FullscreenElementStack(Document&);
 
     Document* document();
 
     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();
 
     bool m_areKeysEnabledInFullScreen;
     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;
 };
 
 inline bool FullscreenElementStack::isActiveFullScreenElement(const Element& element)
 {
     FullscreenElementStack* controller = fromIfExists(element.document());
     if (!controller)
         return false;
     return controller->webkitIsFullScreen() && controller->webkitCurrentFullScreenElement() == element;
 }
 
 inline FullscreenElementStack* FullscreenElementStack::fromIfExists(Document& document)
 {
     if (!document.hasFullscreenElementStack())
         return 0;
     return fromIfExistsSlow(document);
 }
 
 } // namespace WebCore
 
 #endif // FullscreenElementStack_h