Fix DUMP_NODE_STATISTICS compilation.

third_party/WebKit/Source/core/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) 2004-2011, 2014 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 20 matching lines @@
 #include "core/dom/MutationObserver.h"
 #include "core/dom/SimulatedClickOptions.h"
 #include "core/dom/TreeScope.h"
 #include "core/editing/EditingBoundary.h"
 #include "core/events/EventTarget.h"
 #include "core/style/ComputedStyleConstants.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 
-// This needs to be here because Document.h also depends on it.
+// This needs to be here because Element.cpp also depends on it.
 #define DUMP_NODE_STATISTICS 0
 
 namespace blink {
 
 class Attribute;
 class ClassCollection;
 class ContainerNode;
 class DOMTokenList;
 class Document;
 class Element;
@@ skipping 868 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h