Include wtf/RefCounted.h less often in modules/

Source/modules/mediastream/RTCStatsRequestImpl.h

 /*
  * Copyright (C) 2012 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
@@ skipping 11 matching lines @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef RTCStatsRequestImpl_h
 #define RTCStatsRequestImpl_h
 
 #include "core/dom/ActiveDOMObject.h"
 #include "modules/mediastream/RTCStatsResponse.h"
 #include "platform/heap/Handle.h"
 #include "platform/mediastream/RTCStatsRequest.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class MediaStreamTrack;
 class RTCPeerConnection;
 class RTCStatsCallback;
 
 class RTCStatsRequestImpl FINAL : public RTCStatsRequest, public ActiveDOMObject {
 public:
@@ skipping 16 matching lines @@
 
     OwnPtr<RTCStatsCallback> m_successCallback;
     RefPtr<MediaStreamComponent> m_component;
 
     Persistent<RTCPeerConnection> m_requester;
 };
 
 } // namespace WebCore
 
 #endif // RTCStatsRequestImpl_h