Potential fix for rtx/red issue where red is removed only from the remote description.

webrtc/video/rtp_stream_receiver.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 436 matching lines @@
   StreamStatistician* statistician =
       rtp_receive_statistics_->GetStatistician(header.ssrc);
   if (!statistician)
     return false;
   // Check if this is a retransmission.
   int64_t min_rtt = 0;
   rtp_rtcp_->RTT(rtp_receiver_->SSRC(), nullptr, nullptr, &min_rtt, nullptr);
   return !in_order &&
       statistician->IsRetransmitOfOldPacket(header, min_rtt);
 }
+
+void RtpStreamReceiver::DisableFec() {
+  LOG(LS_ERROR) << "Disable red: "
+                << static_cast<int>(rtp_payload_registry_.red_payload_type());
+  rtp_payload_registry_.DeRegisterReceivePayload(
+      rtp_payload_registry_.red_payload_type());
+}
 }  // namespace webrtc