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

Source/WebKit/chromium/src/WebInputElement.cpp

 /*
  * Copyright (C) 2009 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 23 matching lines @@
 #include "HTMLNames.h"
 #include "TextFieldDecoratorImpl.h"
 #include "WebNodeCollection.h"
 #include "WebTextFieldDecoratorClient.h"
 #include "core/dom/ElementShadow.h"
 #include "core/dom/ShadowRoot.h"
 #include "core/html/HTMLDataListElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/shadow/TextControlInnerElements.h"
 #include "core/html/shadow/TextFieldDecorationElement.h"
+#include "heap/Handle.h"
 #include <public/WebString.h>
 #include <wtf/PassRefPtr.h>
 
 using namespace WebCore;
 
 namespace WebKit {
 
 bool WebInputElement::isTextField() const
 {
     return constUnwrap<HTMLInputElement>()->isTextField();
@@ skipping 197 matching lines @@
     ShadowRoot* shadowRoot = unwrap<HTMLInputElement>()->youngestShadowRoot();
     while (shadowRoot) {
         TextFieldDecorationElement* decoration = TextFieldDecorationElement::fromShadowRoot(shadowRoot);
         if (decoration && decoratorClient->isClientFor(decoration->textFieldDecorator()))
             return WebElement(decoration);
         shadowRoot = shadowRoot->olderShadowRoot();
     }
     return WebElement();
 }
 
-WebInputElement::WebInputElement(const PassRefPtr<HTMLInputElement>& elem)
+WebInputElement::WebInputElement(Handle<HTMLInputElement> elem)
     : WebFormControlElement(elem)
 {
 }
 
-WebInputElement& WebInputElement::operator=(const PassRefPtr<HTMLInputElement>& elem)
+WebInputElement& WebInputElement::operator=(Handle<HTMLInputElement> elem)
 {
-    m_private = elem;
+    m_private = elem.passRefPtr();
     return *this;
 }
 
-WebInputElement::operator PassRefPtr<HTMLInputElement>() const
+WebInputElement::operator Handle<HTMLInputElement>() const
 {
-    return static_cast<HTMLInputElement*>(m_private.get());
+    return Handle<HTMLInputElement>(static_cast<HTMLInputElement*>(m_private.get()));
 }
 
 WebInputElement* toWebInputElement(WebElement* webElement)
 {
-    HTMLInputElement* inputElement = webElement->unwrap<Element>()->toInputElement();
+    Handle<HTMLInputElement> inputElement = webElement->unwrap<Element>()->toInputElement();
     if (!inputElement)
         return 0;
 
     return static_cast<WebInputElement*>(webElement);
 }
 } // namespace WebKit