Oilpan: make DOMWindowProperty a GC mixin.

Source/core/loader/appcache/ApplicationCache.h

 /*
  * Copyright (C) 2008, 2009 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 31 matching lines @@
 
 class ApplicationCache FINAL : public RefCountedWillBeGarbageCollectedFinalized<ApplicationCache>, public EventTargetWithInlineData, public DOMWindowProperty {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_EVENT_TARGET(ApplicationCache);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ApplicationCache);
 public:
     static PassRefPtrWillBeRawPtr<ApplicationCache> create(LocalFrame* frame)
     {
         return adoptRefWillBeNoop(new ApplicationCache(frame));
     }
-    virtual ~ApplicationCache() { ASSERT(!m_frame); }
+    virtual ~ApplicationCache()
+    {
+#if !ENABLE(OILPAN)

[haraken, 2014/09/10 02:49:36]

I'm OK with this, but the ASSERT(!m_frame) is still valid until you move the
Frame to the heap in the next patch, right?

[sof, 2014/09/10 05:49:40]

It should be.

+        ASSERT(!m_frame);
+#endif
+    }
 
     virtual void willDestroyGlobalObjectInFrame() OVERRIDE;
 
     unsigned short status() const;
     void update(ExceptionState&);
     void swapCache(ExceptionState&);
     void abort();
 
     // Explicitly named attribute event listener helpers
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(checking);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(noupdate);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(downloading);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(updateready);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(cached);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(obsolete);
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
     static const AtomicString& toEventType(ApplicationCacheHost::EventID);
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     explicit ApplicationCache(LocalFrame*);
 
     ApplicationCacheHost* applicationCacheHost() const;
 };
 
 } // namespace blink
 
 #endif // ApplicationCache_h