Remove more oilpan.

sky/engine/core/css/MediaQueryList.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 29 matching lines @@
 class MediaQuerySet;
 
 // MediaQueryList interface is specified at http://dev.w3.org/csswg/cssom-view/#the-mediaquerylist-interface
 // The objects of this class are returned by window.matchMedia. They may be used to
 // retrieve the current value of the given media query and to add/remove listeners that
 // will be called whenever the value of the query changes.
 
 class MediaQueryList final : public RefCounted<MediaQueryList>, public EventTargetWithInlineData, public ActiveDOMObject {
     DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCounted<MediaQueryList>);
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaQueryList);
 public:
     static PassRefPtr<MediaQueryList> create(ExecutionContext*, PassRefPtr<MediaQueryMatcher>, PassRefPtr<MediaQuerySet>);
     virtual ~MediaQueryList();
 
     String media() const;
     bool matches();
 
     // These two functions are provided for compatibility with JS code
     // written before the change listener became a DOM event.
     void addDeprecatedListener(PassRefPtr<EventListener>);
@@ skipping 24 matching lines @@
     RefPtr<MediaQuerySet> m_media;
     typedef ListHashSet<RefPtr<MediaQueryListListener> > ListenerList;
     ListenerList m_listeners;
     bool m_matchesDirty;
     bool m_matches;
 };
 
 } // namespace blink
 
 #endif // MediaQueryList_h