Reland of actor NACK bitrate allocation

webrtc/video/send_statistics_proxy.cc

 /*
  *  Copyright (c) 2013 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 546 matching lines @@
   rtc::CritScope lock(&crit_);
   VideoSendStream::StreamStats* stats = GetStatsEntry(ssrc);
   RTC_DCHECK(stats) << "DataCountersUpdated reported for unknown ssrc: "
                     << ssrc;
 
   stats->rtp_stats = counters;
   if (uma_container_->first_rtp_stats_time_ms_ == -1)
     uma_container_->first_rtp_stats_time_ms_ = clock_->TimeInMilliseconds();
 }
 
-void SendStatisticsProxy::Notify(const BitrateStatistics& total_stats,
-                                 const BitrateStatistics& retransmit_stats,
+void SendStatisticsProxy::Notify(uint32_t total_bitrate_bps,
+                                 uint32_t retransmit_bitrate_bps,
                                  uint32_t ssrc) {
   rtc::CritScope lock(&crit_);
   VideoSendStream::StreamStats* stats = GetStatsEntry(ssrc);
   if (!stats)
     return;
 
-  stats->total_bitrate_bps = total_stats.bitrate_bps;
-  stats->retransmit_bitrate_bps = retransmit_stats.bitrate_bps;
+  stats->total_bitrate_bps = total_bitrate_bps;
+  stats->retransmit_bitrate_bps = retransmit_bitrate_bps;
 }
 
 void SendStatisticsProxy::FrameCountUpdated(const FrameCounts& frame_counts,
                                             uint32_t ssrc) {
   rtc::CritScope lock(&crit_);
   VideoSendStream::StreamStats* stats = GetStatsEntry(ssrc);
   if (!stats)
     return;
 
   stats->frame_counts = frame_counts;
@@ skipping 40 matching lines @@
   return Fraction(min_required_samples, 1000.0f);
 }
 
 int SendStatisticsProxy::BoolSampleCounter::Fraction(
     int min_required_samples, float multiplier) const {
   if (num_samples < min_required_samples || num_samples == 0)
     return -1;
   return static_cast<int>((sum * multiplier / num_samples) + 0.5f);
 }
 }  // namespace webrtc