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

Source/WebKit/chromium/public/WebSelectElement.h

 /*
  * Copyright (C) 2010 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 18 matching lines @@
  */
 
 #ifndef WebSelectElement_h
 #define WebSelectElement_h
 
 #include "../../../Platform/chromium/public/WebVector.h"
 #include "WebFormControlElement.h"
 #include "WebOptionElement.h"
 
 #if WEBKIT_IMPLEMENTATION
-namespace WebCore { class HTMLSelectElement; }
+namespace WebCore {
+class HTMLSelectElement;
+template<typename T> class Handle;
+}
 #endif
 
 namespace WebKit {
 
 // Provides readonly access to some properties of a DOM select element node.
 class WebSelectElement : public WebFormControlElement {
 public:
     WebSelectElement() : WebFormControlElement() { }
     WebSelectElement(const WebSelectElement& element) : WebFormControlElement(element) { }
 
     WebSelectElement& operator=(const WebSelectElement& element)
     {
         WebFormControlElement::assign(element);
         return *this;
     }
     void assign(const WebSelectElement& element) { WebFormControlElement::assign(element); }
 
     WEBKIT_EXPORT void setValue(const WebString&);
     WEBKIT_EXPORT WebString value() const;
     WEBKIT_EXPORT WebVector<WebElement> listItems() const;
 
 #if WEBKIT_IMPLEMENTATION
-    WebSelectElement(const WTF::PassRefPtr<WebCore::HTMLSelectElement>&);
-    WebSelectElement& operator=(const WTF::PassRefPtr<WebCore::HTMLSelectElement>&);
-    operator WTF::PassRefPtr<WebCore::HTMLSelectElement>() const;
+    WebSelectElement(WebCore::Handle<WebCore::HTMLSelectElement>);
+    WebSelectElement& operator=(WebCore::Handle<WebCore::HTMLSelectElement>);
+    operator WebCore::Handle<WebCore::HTMLSelectElement>() const;
 #endif
 };
 
 } // namespace WebKit
 
 #endif