remoting: Cleanup class/struct fwd declarations

remoting/client/plugin/pepper_video_renderer.h

 // Copyright 2014 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_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_H_
 
 #include "remoting/protocol/video_renderer.h"
 
 namespace webrtc {
-class DesktopSize;
-class DesktopVector;
 class DesktopRegion;
 }  // namespace webrtc
 
 namespace pp {
 class Instance;
 class View;
 }  // namespace pp
 
 namespace remoting {
 
-class ClientContext;
-
-namespace protocol {
-class FrameStatsConsumer;
-}  // namespace protocol
-
 // Interface for video renderers that render video in pepper plugin.
 class PepperVideoRenderer : public protocol::VideoRenderer {
  public:
   class EventHandler {
    public:
     EventHandler() {}
     virtual ~EventHandler() {}
 
     // Called if video decoding fails, for any reason.
     virtual void OnVideoDecodeError() = 0;
@@ skipping 16 matching lines @@
   virtual void OnViewChanged(const pp::View& view) = 0;
 
   // Enables or disables delivery of dirty region information to the
   // EventHandler, for debugging purposes.
   virtual void EnableDebugDirtyRegion(bool enable) = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_H_