Oilpan: Allocate all EventTarget derived types on the manged heap.

Source/core/frame/DOMWindow.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 76 matching lines @@
 
 enum PageshowEventPersistence {
     PageshowEventNotPersisted = 0,
     PageshowEventPersisted = 1
 };
 
     enum SetLocationLocking { LockHistoryBasedOnGestureState, LockHistoryAndBackForwardList };
 
     class DOMWindow FINAL : public RefCountedWillBeRefCountedGarbageCollected<DOMWindow>, public ScriptWrappable, public EventTargetWithInlineData, public DOMWindowBase64, public FrameDestructionObserver, public WillBeHeapSupplementable<DOMWindow>, public LifecycleContext<DOMWindow> {
         WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindow);
-        DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<DOMWindow>);
+        REFCOUNTED_EVENT_TARGET(DOMWindow);
     public:
         static PassRefPtrWillBeRawPtr<Document> createDocument(const String& mimeType, const DocumentInit&, bool forceXHTML);
         static PassRefPtrWillBeRawPtr<DOMWindow> create(LocalFrame& frame)
         {
             return adoptRefWillBeRefCountedGarbageCollected(new DOMWindow(frame));
         }
         virtual ~DOMWindow();
 
         PassRefPtrWillBeRawPtr<Document> installNewDocument(const String& mimeType, const DocumentInit&, bool forceXHTML = false);
 
@@ skipping 211 matching lines @@
         void enqueuePageshowEvent(PageshowEventPersistence);
         void enqueueHashchangeEvent(const String& oldURL, const String& newURL);
         void enqueuePopstateEvent(PassRefPtr<SerializedScriptValue>);
         void dispatchWindowLoadEvent();
         void documentWasClosed();
         void statePopped(PassRefPtr<SerializedScriptValue>);
 
         // FIXME: This shouldn't be public once DOMWindow becomes ExecutionContext.
         void clearEventQueue();
 
-        void trace(Visitor*);
+        virtual void trace(Visitor*) OVERRIDE;
 
     protected:
         DOMWindowLifecycleNotifier& lifecycleNotifier();
 
     private:
         explicit DOMWindow(LocalFrame&);
 
         Page* page();
 
         virtual void frameDestroyed() OVERRIDE;
@@ skipping 58 matching lines @@
     }
 
     inline String DOMWindow::defaultStatus() const
     {
         return m_defaultStatus;
     }
 
 } // namespace WebCore
 
 #endif // DOMWindow_h