include RefCounted.h where needed, only.

third_party/WebKit/Source/platform/mediastream/MediaStreamDescriptor.h

 /*
  * Copyright (C) 2011 Ericsson AB. All rights reserved.
  * 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.
@@ skipping 17 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MediaStreamDescriptor_h
 #define MediaStreamDescriptor_h
 
 #include "platform/mediastream/MediaStreamComponent.h"
 #include "platform/mediastream/MediaStreamSource.h"
 #include "wtf/Allocator.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/Forward.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT MediaStreamDescriptorClient : public GarbageCollectedMixin {
 public:
     virtual ~MediaStreamDescriptorClient() { }
 
     virtual void streamEnded() = 0;
     virtual void addRemoteTrack(MediaStreamComponent*) = 0;
@@ skipping 59 matching lines @@
     bool m_ended;
 
     OwnPtr<ExtraData> m_extraData;
 };
 
 typedef HeapVector<Member<MediaStreamDescriptor>> MediaStreamDescriptorVector;
 
 } // namespace blink
 
 #endif // MediaStreamDescriptor_h