Move mediastream module to oilpan transition types

Source/platform/mediastream/MediaStreamTrackSourcesRequest.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:
  * 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 #ifndef MediaStreamTrackSourcesRequest_h
 #define MediaStreamTrackSourcesRequest_h
 
+#include "platform/heap/Handle.h"
 #include "public/platform/WebVector.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 class WebSourceInfo;
 }
 
 namespace WebCore {
 
-class MediaStreamTrackSourcesRequest : public RefCounted<MediaStreamTrackSourcesRequest> {
+class MediaStreamTrackSourcesRequest : public RefCountedWillBeGarbageCollectedFinalized<MediaStreamTrackSourcesRequest> {
 public:
     class ExtraData {
     public:
         virtual ~ExtraData() { }
     };
 
     virtual ~MediaStreamTrackSourcesRequest() { }
 
     virtual String origin() = 0;
     virtual void requestSucceeded(const blink::WebVector<blink::WebSourceInfo>&) = 0;
 
     ExtraData* extraData() const { return m_extraData.get(); }
     void setExtraData(PassOwnPtr<ExtraData> extraData) { m_extraData = extraData; }
 
+    virtual void trace(Visitor*) { }
+
 protected:
     MediaStreamTrackSourcesRequest() { }
 
 private:
     OwnPtr<ExtraData> m_extraData;
 };
 
 } // namespace WebCore
 
 #endif // MediaStreamTrackSourcesRequest_h