Fire overflowchanged events at raf timing

Source/core/dom/Document.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) 2011 Google Inc. All rights reserved.
  *
@@ skipping 872 matching lines @@
 
     void setContainsPlugins() { m_containsPlugins = true; }
     bool containsPlugins() const { return m_containsPlugins; }
 
     virtual bool isContextThread() const;
     virtual bool isJSExecutionForbidden() const { return false; }
 
     bool containsValidityStyleRules() const { return m_containsValidityStyleRules; }
     void setContainsValidityStyleRules() { m_containsValidityStyleRules = true; }
 
+    void enqueueResizeEvent();
     void enqueueScrollEventForNode(Node*);
-    void scheduleAnimationFrameEvent(PassRefPtr<Event>);
+    void enqueueAnimationFrameEvent(PassRefPtr<Event>);
 
     const QualifiedName& idAttributeName() const { return m_idAttributeName; }
 
     bool hasFullscreenElementStack() const { return m_hasFullscreenElementStack; }
     void setHasFullscreenElementStack() { m_hasFullscreenElementStack = true; }
 
     void webkitExitPointerLock();
     Element* webkitPointerLockElement() const;
 
     // Used to allow element that loads data without going through a FrameLoader to delay the 'load' event.
@@ skipping 451 matching lines @@
 inline bool Node::isDocumentNode() const
 {
     return this == documentInternal();
 }
 
 Node* eventTargetNodeForDocument(Document*);
 
 } // namespace WebCore
 
 #endif // Document_h