Merge 143840

Source/WebCore/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 230 matching lines @@
     virtual bool isWebVTTElement() const { return false; }
 #endif
     bool isStyledElement() const { return getFlag(IsStyledElementFlag); }
     virtual bool isAttributeNode() const { return false; }
     virtual bool isCharacterDataNode() const { return false; }
     virtual bool isFrameOwnerElement() const { return false; }
     virtual bool isPluginElement() const { return false; }
     virtual bool isInsertionPointNode() const { return false; }
 
     bool isDocumentNode() const;
-    bool isTreeScope() const;
+    bool isTreeScope() const { return treeScope()->rootNode() == this; }
     bool isDocumentFragment() const { return getFlag(IsDocumentFragmentFlag); }
     bool isShadowRoot() const { return isDocumentFragment() && isTreeScope(); }
     bool isInsertionPoint() const { return getFlag(NeedsShadowTreeWalkerFlag) && isInsertionPointNode(); }
 
     bool needsShadowTreeWalker() const;
     bool needsShadowTreeWalkerSlow() const;
     void setNeedsShadowTreeWalker() { setFlag(NeedsShadowTreeWalkerFlag); }
     void resetNeedsShadowTreeWalker() { setFlag(needsShadowTreeWalkerSlow(), NeedsShadowTreeWalkerFlag); }
 
     bool inNamedFlow() const { return getFlag(InNamedFlowFlag); }
@@ skipping 635 matching lines @@
 
 } //namespace
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::Node*);
 void showNodePath(const WebCore::Node*);
 #endif
 
 #endif