remoting: Cleanup class/struct fwd declarations

remoting/protocol/connection_to_client.h

 // Copyright (c) 2012 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_CONNECTION_TO_CLIENT_H_
 #define REMOTING_PROTOCOL_CONNECTION_TO_CLIENT_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "remoting/protocol/transport.h"
 
 namespace webrtc {
 class DesktopCapturer;
 }  // namespace webrtc
 
 namespace remoting {
 
-class VideoEncoder;
-
 namespace protocol {
 
 class AudioStream;
 class AudioSource;
 class ClientStub;
 class ClipboardStub;
 class HostStub;
 class InputStub;
 class Session;
 class VideoStream;
@@ skipping 63 matching lines @@
   // must be called in EventHandler::OnConnectionAuthenticated().
   virtual void set_clipboard_stub(ClipboardStub* clipboard_stub) = 0;
   virtual void set_host_stub(HostStub* host_stub) = 0;
   virtual void set_input_stub(InputStub* input_stub) = 0;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_CONNECTION_TO_CLIENT_H_