Cast: Avoid retransmit if we sent the same packet recently (less than RTT)

media/cast/transport/cast_transport_sender_impl.cc

 // Copyright 2014 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.
 
 #include "media/cast/transport/cast_transport_sender_impl.h"
 
 #include "base/single_thread_task_runner.h"
 #include "media/cast/transport/cast_transport_config.h"
 #include "media/cast/transport/cast_transport_defines.h"
 
@@ skipping 160 matching lines @@
     LOG(ERROR) << "Sending RTCP with an invalid SSRC.";
     return;
   }
   rtcp_builder_.SendRtcpFromRtpSender(
       packet_type_flags, sender_info, dlrr, sending_ssrc, c_name);
 }
 
 void CastTransportSenderImpl::ResendPackets(
     bool is_audio,
     const MissingFramesAndPacketsMap& missing_packets,
-    bool cancel_rtx_if_not_in_list) {
+    bool cancel_rtx_if_not_in_list,
+    base::TimeDelta dedupe_window) {
   if (is_audio) {
     DCHECK(audio_sender_) << "Audio sender uninitialized";
     audio_sender_->ResendPackets(missing_packets,
-                                 cancel_rtx_if_not_in_list);
+                                 cancel_rtx_if_not_in_list,
+                                 dedupe_window);
   } else {
     DCHECK(video_sender_) << "Video sender uninitialized";
     video_sender_->ResendPackets(missing_packets,
-                                 cancel_rtx_if_not_in_list);
+                                 cancel_rtx_if_not_in_list,
+                                 dedupe_window);
   }
 }
 
 void CastTransportSenderImpl::SendRawEvents() {
   DCHECK(event_subscriber_.get());
   DCHECK(!raw_events_callback_.is_null());
   std::vector<PacketEvent> packet_events;
   event_subscriber_->GetPacketEventsAndReset(&packet_events);
   raw_events_callback_.Run(packet_events);
 }
 
 }  // namespace transport
 }  // namespace cast
 }  // namespace media