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

Source/core/html/HTMLFormControlElementWithState.h

Index: Source/core/html/HTMLFormControlElementWithState.h
diff --git a/Source/core/html/HTMLFormControlElementWithState.h b/Source/core/html/HTMLFormControlElementWithState.h
index 869d1717a8c41941850200c20b6f1015c274db7f..a8062e828b2d1464384d7374d1f69df997ee0c04 100644
--- a/Source/core/html/HTMLFormControlElementWithState.h
+++ b/Source/core/html/HTMLFormControlElementWithState.h
@@ -42,8 +42,6 @@ public:
     virtual void restoreFormControlState(const FormControlState&) { }
     void notifyFormStateChanged();
 
-    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
-
 protected:
     HTMLFormControlElementWithState(const QualifiedName& tagName, Handle<Document>, HTMLFormElement*);
 
@@ -51,6 +49,8 @@ protected:
     virtual void finishParsingChildren();
     virtual void didMoveToNewDocument(Handle<Document> oldDocument) OVERRIDE;
     virtual bool isFormControlElementWithState() const OVERRIDE;
+
+    virtual void acceptHeapVisitor(Visitor*) const OVERRIDE;
 };
 
 } // namespace