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

Source/core/html/HTMLFormControlElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 87 matching lines @@
     bool hasAutofocused() { return m_hasAutofocused; }
     void setAutofocused() { m_hasAutofocused = true; }
 
     static Result<HTMLFormControlElement> enclosingFormControlElement(Node*);
 
     using Node::ref;
     using Node::deref;
 
     virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
 
-    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
-
 protected:
     HTMLFormControlElement(const QualifiedName& tagName, Handle<Document>, HTMLFormElement*);
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void requiredAttributeChanged();
     virtual void disabledAttributeChanged();
     virtual void attach();
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void removedFrom(ContainerNode*) OVERRIDE;
     virtual void didMoveToNewDocument(Handle<Document> oldDocument) OVERRIDE;
 
     virtual bool supportsFocus() const;
     virtual bool isKeyboardFocusable(KeyboardEvent*) const;
     virtual bool isMouseFocusable() const;
 
     virtual void didRecalcStyle(StyleChange) OVERRIDE;
 
     virtual void dispatchBlurEvent(PassRefPtr<Node> newFocusedNode);
 
     // This must be called any time the result of willValidate() has changed.
     void setNeedsWillValidateCheck();
     virtual bool recalcWillValidate() const;
 
     bool validationMessageShadowTreeContains(Node*) const;
 
+    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
+
 private:
     virtual void refFormAssociatedElement() { ref(); }
     virtual void derefFormAssociatedElement() { deref(); }
 
     virtual bool isFormControlElement() const { return true; }
     virtual bool alwaysCreateUserAgentShadowRoot() const OVERRIDE { return true; }
 
     virtual short tabIndex() const;
 
     virtual HTMLFormElement* virtualForm() const;
@@ skipping 23 matching lines @@
     bool m_isValid : 1;
 
     bool m_wasChangedSinceLastFormControlChangeEvent : 1;
 
     bool m_hasAutofocused : 1;
 };
 
 } // namespace
 
 #endif