Pause/resume pacer from Call instead of via SendStreams.

webrtc/video_engine/vie_channel_group.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 51 matching lines @@
   void DeleteChannel(int channel_id);
   ViEChannel* GetChannel(int channel_id) const;
   ViEEncoder* GetEncoder(int channel_id) const;
   void SetSyncInterface(VoEVideoSync* sync_interface);
   void SetBweBitrates(int min_bitrate_bps,
                       int start_bitrate_bps,
                       int max_bitrate_bps);
 
   void SetChannelRembStatus(bool sender, bool receiver, ViEChannel* channel);
 
+  void SignalNetworkState(NetworkState state);
+
   BitrateController* GetBitrateController() const;
   CallStats* GetCallStats() const;
   RemoteBitrateEstimator* GetRemoteBitrateEstimator() const;
   EncoderStateFeedback* GetEncoderStateFeedback() const;
   int64_t GetPacerQueuingDelayMs() const;
 
   // Implements BitrateObserver.
   void OnNetworkChanged(uint32_t target_bitrate_bps,
                         uint8_t fraction_loss,
                         int64_t rtt) override;
@@ skipping 30 matching lines @@
   rtc::scoped_ptr<ProcessThread> pacer_thread_;
 
   rtc::scoped_ptr<BitrateController> bitrate_controller_;
   rtc::scoped_ptr<TransportFeedbackAdapter> transport_feedback_adapter_;
   int min_bitrate_bps_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_GROUP_H_