Ignore packets sent on old network route when receiving feedback.

webrtc/modules/congestion_controller/congestion_controller.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 203 matching lines @@
   min_bitrate_bps_ = min_bitrate_bps;
   {
     rtc::CritScope cs(&bwe_lock_);
     if (start_bitrate_bps > 0)
       delay_based_bwe_->SetStartBitrate(start_bitrate_bps);
     delay_based_bwe_->SetMinBitrate(min_bitrate_bps_);
   }
   MaybeTriggerOnNetworkChanged();
 }
 
-void CongestionController::ResetBweAndBitrates(int bitrate_bps,
-                                               int min_bitrate_bps,
-                                               int max_bitrate_bps) {
+// TODO(holmer): Split this up and use SetBweBitrates in combination with
+// OnNetworkRouteChanged.
+void CongestionController::OnNetworkRouteChanged(
+    const rtc::NetworkRoute& network_route,
+    int bitrate_bps,
+    int min_bitrate_bps,
+    int max_bitrate_bps) {
   ClampBitrates(&bitrate_bps, &min_bitrate_bps, &max_bitrate_bps);
   // TODO(honghaiz): Recreate this object once the bitrate controller is
   // no longer exposed outside CongestionController.
   bitrate_controller_->ResetBitrates(bitrate_bps, min_bitrate_bps,
                                      max_bitrate_bps);
   min_bitrate_bps_ = min_bitrate_bps;
   max_bitrate_bps_ = max_bitrate_bps;
   // TODO(honghaiz): Recreate this object once the remote bitrate estimator is
   // no longer exposed outside CongestionController.
   remote_bitrate_estimator_.SetMinBitrate(min_bitrate_bps);
 
-  transport_feedback_adapter_.ClearSendTimeHistory();
+  transport_feedback_adapter_.SetNetworkIds(network_route.local_network_id,
+                                            network_route.remote_network_id);
   {
     rtc::CritScope cs(&bwe_lock_);
     delay_based_bwe_.reset(new DelayBasedBwe(event_log_, clock_));
     delay_based_bwe_->SetStartBitrate(bitrate_bps);
     delay_based_bwe_->SetMinBitrate(min_bitrate_bps);
   }
 
   probe_controller_->Reset();
   probe_controller_->SetBitrates(min_bitrate_bps, bitrate_bps, max_bitrate_bps);
 
@@ skipping 161 matching lines @@
 bool CongestionController::IsSendQueueFull() const {
   return pacer_->ExpectedQueueTimeMs() > PacedSender::kMaxQueueLengthMs;
 }
 
 bool CongestionController::IsNetworkDown() const {
   rtc::CritScope cs(&network_state_lock_);
   return network_state_ == kNetworkDown;
 }
 
 }  // namespace webrtc