Make the audio channel communicate network state changes to the call.

webrtc/modules/pacing/paced_sender.cc

 /*
  *  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 419 matching lines @@
     padding_needed = prober_->RecommendedPacketSize();
   } else {
     padding_needed = padding_budget_->bytes_remaining();
   }
 
   if (padding_needed > 0)
     SendPadding(static_cast<size_t>(padding_needed));
 }
 
 bool PacedSender::SendPacket(const paced_sender::Packet& packet) {
-  // TODO(holmer): Because of this bug issue 5307 we have to send audio
-  // packets even when the pacer is paused. Here we assume audio packets are
-  // always high priority and that they are the only high priority packets.
-  if (paused_ && packet.priority != kHighPriority)
+  if (paused_)
     return false;
   critsect_->Leave();
   const bool success = callback_->TimeToSendPacket(packet.ssrc,
                                                    packet.sequence_number,
                                                    packet.capture_time_ms,
                                                    packet.retransmission);
   critsect_->Enter();
 
   // TODO(holmer): High priority packets should only be accounted for if we are
   // allocating bandwidth for audio.
@@ skipping 17 matching lines @@
     media_budget_->UseBudget(bytes_sent);
     padding_budget_->UseBudget(bytes_sent);
   }
 }
 
 void PacedSender::UpdateBytesPerInterval(int64_t delta_time_ms) {
   media_budget_->IncreaseBudget(delta_time_ms);
   padding_budget_->IncreaseBudget(delta_time_ms);
 }
 }  // namespace webrtc