[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/html/FormController.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010, 2011, 2012 Google 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 66 matching lines @@
     WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassOwnPtr<FormController> create()
     {
         return adoptPtr(new FormController);
     }
     ~FormController();
 
     CheckedRadioButtons& checkedRadioButtons() { return m_checkedRadioButtons; }
     
-    void registerFormElementWithState(HTMLFormControlElementWithState* control) { m_formElementsWithState.add(control); }
-    void unregisterFormElementWithState(HTMLFormControlElementWithState* control) { m_formElementsWithState.remove(control); }
+    void registerFormElementWithState(Handle<HTMLFormControlElementWithState> control) { m_formElementsWithState.add(control.raw()); }
+    void unregisterFormElementWithState(Handle<HTMLFormControlElementWithState> control) { m_formElementsWithState.remove(control.raw()); }
     // This should be callled only by Document::formElementsState().
     Vector<String> formElementsState() const;
     // This should be callled only by Document::setStateForNewFormElements().
     void setStateForNewFormElements(const Vector<String>&);
     void willDeleteForm(HTMLFormElement*);
-    void restoreControlStateFor(HTMLFormControlElementWithState&);
+    void restoreControlStateFor(Handle<HTMLFormControlElementWithState>);
     void restoreControlStateIn(HTMLFormElement&);
 
     static Vector<String> getReferencedFilePaths(const Vector<String>& stateVector);
 
     void clearWeakPointers(Visitor*);
 
 private:
+    // FIXME(oilpan): This should be a weak hash set.
     typedef ListHashSet<HTMLFormControlElementWithState*, 64> FormElementListHashSet;
     typedef HashMap<RefPtr<AtomicStringImpl>, OwnPtr<SavedFormState> > SavedFormStateMap;
 
     FormController();
     static PassOwnPtr<SavedFormStateMap> createSavedFormStateMap(const FormElementListHashSet&);
-    FormControlState takeStateForFormElement(const HTMLFormControlElementWithState&);
+    FormControlState takeStateForFormElement(Handle<const HTMLFormControlElementWithState>);
     static void formStatesFromStateVector(const Vector<String>&, SavedFormStateMap&);
 
     CheckedRadioButtons m_checkedRadioButtons;
     FormElementListHashSet m_formElementsWithState;
     SavedFormStateMap m_savedFormStateMap;
     OwnPtr<FormKeyGenerator> m_formKeyGenerator;
 };
 
 } // namespace WebCore
 #endif