Move logic for calculating needed bitrate overhead used by NACK and FEC to VideoSender.

webrtc/video/send_statistics_proxy.h

 /*
  *  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 52 matching lines @@
   // how stats are collected.
   void SetContentType(VideoEncoderConfig::ContentType content_type);
 
   // Implements VideoEncoderRateObserver.
   void OnSetRates(uint32_t bitrate_bps, int framerate) override;
 
   // Implements CpuOveruseMetricsObserver.
   void OnEncodedFrameTimeMeasured(int encode_time_ms,
                                   const CpuOveruseMetrics& metrics) override;
 
+  int GetSendFrameRate() const;
+
  protected:
   // From RtcpStatisticsCallback.
   void StatisticsUpdated(const RtcpStatistics& statistics,
                          uint32_t ssrc) override;
   void CNameChanged(const char* cname, uint32_t ssrc) override;
   // From RtcpPacketTypeCounterObserver.
   void RtcpPacketTypesCounterUpdated(
       uint32_t ssrc,
       const RtcpPacketTypeCounter& packet_counter) override;
   // From StreamDataCountersCallback.
@@ skipping 96 matching lines @@
     const VideoSendStream::Stats start_stats_;
     std::map<int, QpCounters>
         qp_counters_;  // QP counters mapped by spatial idx.
   };
 
   std::unique_ptr<UmaSamplesContainer> uma_container_ GUARDED_BY(crit_);
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_VIDEO_SEND_STATISTICS_PROXY_H_