remoting: Cleanup class/struct fwd declarations

remoting/protocol/webrtc_video_renderer_adapter.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_WEBRTC_VIDEO_RENDERER_ADAPTER_H_
 #define REMOTING_PROTOCOL_WEBRTC_VIDEO_RENDERER_ADAPTER_H_
 
 #include <list>
 #include <memory>
 
@@ skipping 12 matching lines @@
 namespace webrtc {
 class DesktopFrame;
 class VideoFrameBuffer;
 }  // namespace webrtc
 
 namespace remoting {
 namespace protocol {
 
 class MessagePipe;
 class VideoRenderer;
-class WebrtcTransport;
 struct ClientFrameStats;
 struct HostFrameStats;
 
 class WebrtcVideoRendererAdapter
     : public rtc::VideoSinkInterface<webrtc::VideoFrame>,
       public VideoStatsStub,
       public ClientVideoStatsDispatcher::EventHandler {
  public:
   WebrtcVideoRendererAdapter(const std::string& label,
                              VideoRenderer* video_renderer);
@@ skipping 39 matching lines @@
 
   base::WeakPtrFactory<WebrtcVideoRendererAdapter> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebrtcVideoRendererAdapter);
 };
 
 }  // namespace remoting
 }  // namespace protocol
 
 #endif  // REMOTING_PROTOCOL_WEBRTC_VIDEO_RENDERER_ADAPTER_H_