Oilpan: Remove GC_INFO_{DEFINE,DECLARE} macros

Source/modules/mediasource/MediaSourceBase.h

 /*
  * Copyright (C) 2013 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 32 matching lines @@
 class WebMediaSource;
 class WebSourceBuffer;
 }
 
 namespace WebCore {
 
 class ExceptionState;
 class GenericEventQueue;
 
 class MediaSourceBase : public RefCountedWillBeRefCountedGarbageCollected<MediaSourceBase>, public HTMLMediaSource, public ActiveDOMObject, public EventTargetWithInlineData {
-    DECLARE_GC_INFO;
     DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<MediaSourceBase>);
 public:
     static const AtomicString& openKeyword();
     static const AtomicString& closedKeyword();
     static const AtomicString& endedKeyword();
 
     virtual ~MediaSourceBase();
 
     void addedToRegistry();
     void removedFromRegistry();
@@ skipping 44 matching lines @@
     OwnPtr<blink::WebMediaSource> m_webMediaSource;
     AtomicString m_readyState;
     OwnPtr<GenericEventQueue> m_asyncEventQueue;
     // FIXME: oilpan: This should become a Member. For now, m_attachedElement will be cleared by the HTMLMediaElement destructor.
     HTMLMediaElement* m_attachedElement;
 };
 
 }
 
 #endif