[oilpan] The Node hierarchy should have correct accept method chains

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 1103 matching lines @@
     void didAssociateFormControl(Element*);
 
     virtual void addConsoleMessage(MessageSource, MessageLevel, const String& message, unsigned long requestIdentifier = 0);
 
     virtual const SecurityOrigin* topOrigin() const OVERRIDE;
 
     PassRefPtr<FontLoader> fontloader();
 
     virtual void visitWith(Visitor*) const;
 
-    virtual void acceptHeapVisitor(Visitor*) const;
-
     using Node::accept;
 
     void clearWeakPointers(Visitor*);
 
 protected:
     Document(Frame*, const KURL&, bool isXHTML, bool isHTML);
 
     virtual void didUpdateSecurityOrigin() OVERRIDE;
 
     void clearXMLVersion() { m_xmlVersion = String(); }
 
     Handle<Document> selfHandle() { return adoptRawResult(this); }
     Handle<const Document> selfHandle() const { return adoptRawResult(this); }
 
+    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
+
 private:
     friend class Node;
     friend class IgnoreDestructiveWriteCountIncrementer;
 
     void detachParser();
 
     typedef void (*ArgumentsCallback)(const String& keyString, const String& valueString, Handle<Document>, void* data);
     void processArguments(const String& features, void* data, ArgumentsCallback);
 
     virtual bool isDocument() const OVERRIDE { return true; }
@@ skipping 378 matching lines @@
     trackForDebugging();
 #endif
     InspectorCounters::incrementCounter(InspectorCounters::NodeCounter);
 }
 
 Node* eventTargetNodeForDocument(Handle<Document>);
 
 } // namespace WebCore
 
 #endif // Document_h