Add remoting::protocol::NetworkStateObserver interface.

remoting/protocol/webrtc_video_stream.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_STREAM_H_
 #define REMOTING_PROTOCOL_WEBRTC_VIDEO_STREAM_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 57 matching lines @@
   void CaptureNextFrame();
 
   // Task running on the encoder thread to encode the |frame|.
   static EncodedFrameWithTimestamps EncodeFrame(
       WebrtcVideoEncoder* encoder,
       std::unique_ptr<webrtc::DesktopFrame> frame,
       WebrtcVideoEncoder::FrameParams params,
       std::unique_ptr<WebrtcVideoStream::FrameTimestamps> timestamps);
   void OnFrameEncoded(EncodedFrameWithTimestamps frame);
 
-  void SetKeyFrameRequest();
-  void SetTargetBitrate(int bitrate);
-
   // Capturer used to capture the screen.
   std::unique_ptr<webrtc::DesktopCapturer> capturer_;
   // Used to send across encoded frames.
   WebrtcTransport* webrtc_transport_ = nullptr;
   // Task runner used to run |encoder_|.
   scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_;
   // Used to encode captured frames. Always accessed on the encode thread.
   std::unique_ptr<WebrtcVideoEncoder> encoder_;
 
   scoped_refptr<webrtc::PeerConnectionInterface> peer_connection_;
   scoped_refptr<webrtc::MediaStreamInterface> stream_;
 
   HostVideoStatsDispatcher video_stats_dispatcher_;
 
   // Timestamps for the frame to be captured next.
   std::unique_ptr<FrameTimestamps> next_frame_timestamps_;
 
   // Timestamps for the frame that's being captured.
   std::unique_ptr<FrameTimestamps> captured_frame_timestamps_;
 
   std::unique_ptr<WebrtcFrameScheduler> scheduler_;
 
-  bool received_first_frame_request_ = false;
-
   webrtc::DesktopSize frame_size_;
   webrtc::DesktopVector frame_dpi_;
   Observer* observer_ = nullptr;
 
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<WebrtcVideoStream> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebrtcVideoStream);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_WEBRTC_VIDEO_STREAM_H_