Oilpan: turn DOMWindow into a heap supplementable.

Source/core/page/DOMWindowPagePopup.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 22 matching lines @@
 
 #include "heap/Handle.h"
 #include "platform/Supplementable.h"
 
 namespace WebCore {
 
 class DOMWindow;
 class PagePopupClient;
 class PagePopupController;
 
-class DOMWindowPagePopup FINAL : public Supplement<DOMWindow> {
+class DOMWindowPagePopup FINAL : public NoBaseWillBeGarbageCollected<DOMWindowPagePopup>, public WillBeHeapSupplement<DOMWindow> {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindowPagePopup);
 public:
     static PagePopupController* pagePopupController(DOMWindow&);
     static void install(DOMWindow&, PagePopupClient*);
     static void uninstall(DOMWindow&);
-    virtual ~DOMWindowPagePopup();
+    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowPagePopup);
+
+    void trace(Visitor*);
 
 private:
     explicit DOMWindowPagePopup(PagePopupClient*);
     static const char* supplementName();
 
-    RefPtrWillBePersistent<PagePopupController> m_controller;
+    RefPtrWillBeMember<PagePopupController> m_controller;
 };
 
 }
 #endif