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

Source/core/html/shadow/TextFieldDecorationElement.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 class CachedImage;
 class HTMLInputElement;
 class ShadowRoot;
 
 // A TextFieldDecorator object must live until all of text fields which were
 // decorated by it die.
 class TextFieldDecorator {
 public:
     // Returns true if this TextFieldDecorator wants to add a
     // decoration to the specified text field.
-    virtual bool willAddDecorationTo(HTMLInputElement*) = 0;
+    virtual bool willAddDecorationTo(Handle<HTMLInputElement>) = 0;
     virtual bool visibleByDefault() = 0;
 
     // A TextFieldDecorator object should own the CachedImage objects.
     virtual CachedImage* imageForNormalState() = 0;
     virtual CachedImage* imageForDisabledState() = 0;
     virtual CachedImage* imageForReadonlyState() = 0;
     virtual CachedImage* imageForHoverState() = 0;
 
-    virtual void handleClick(HTMLInputElement*) = 0;
+    virtual void handleClick(Handle<HTMLInputElement>) = 0;
     // This function is called just before detaching the decoration. It must not
     // call functions which updating state of the specified HTMLInputElement
     // object.
-    virtual void willDetach(HTMLInputElement*) = 0;
+    virtual void willDetach(Handle<HTMLInputElement>) = 0;
 
     virtual ~TextFieldDecorator();
 };
 
 // A TextFieldDecorationElement object must be in a shadow tree of an
 // HTMLInputElement.
 class TextFieldDecorationElement : public HTMLDivElement {
 public:
     static PassRefPtr<TextFieldDecorationElement> create(Document*, TextFieldDecorator*);
     static TextFieldDecorationElement* fromShadowRoot(ShadowRoot*);
     TextFieldDecorator* textFieldDecorator() { return m_textFieldDecorator; }
-    void decorate(HTMLInputElement*, bool visible);
+    void decorate(Handle<HTMLInputElement>, bool visible);
 
     virtual bool willRespondToMouseMoveEvents() OVERRIDE;
     virtual bool willRespondToMouseClickEvents() OVERRIDE;
 
 private:
     TextFieldDecorationElement(Document*, TextFieldDecorator*);
     virtual bool isTextFieldDecoration() const OVERRIDE;
     virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
     virtual RenderObject* createRenderer(RenderArena*, RenderStyle*) OVERRIDE;
     virtual void attach() OVERRIDE;
     virtual void detach() OVERRIDE;
     virtual bool isMouseFocusable() const OVERRIDE;
     virtual void defaultEventHandler(Event*) OVERRIDE;
 
-    HTMLInputElement* hostInput();
+    Result<HTMLInputElement> hostInput();
     void updateImage();
 
     TextFieldDecorator* m_textFieldDecorator;
     bool m_isInHoverState;
 };
 
 inline TextFieldDecorationElement* toTextFieldDecorationElement(Node* node)
 {
     ASSERT(node);
     ASSERT_WITH_SECURITY_IMPLICATION(node->isElementNode());
     ASSERT_WITH_SECURITY_IMPLICATION(toElement(node)->isTextFieldDecoration());
     return static_cast<TextFieldDecorationElement*>(node);
 }
 
 }
 #endif