Add histogram stats for send delay for a sent video stream.

webrtc/video/video_send_stream.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 58 matching lines @@
   Stats GetStats() override;
 
   // webrtc::CpuOveruseObserver implementation.
   void OveruseDetected() override;
   void NormalUsage() override;
 
   typedef std::map<uint32_t, RtpState> RtpStateMap;
   RtpStateMap GetRtpStates() const;
 
   int GetPaddingNeededBps() const;
+  bool OnSentPacket(int packet_id);

[mflodman, 2016/04/26 06:49:11]

I'd prefer OnPacketSent, wdyt?

[åsapersson, 2016/04/28 12:26:19]

Called from Call::OnSentPacket. Maybe keep the same name.

[mflodman, 2016/05/02 07:21:10]

Ah, ok.

 
   // Implements BitrateAllocatorObserver.
   void OnBitrateUpdated(uint32_t bitrate_bps,
                         uint8_t fraction_loss,
                         int64_t rtt) override;
 
   // Implements webrtc::VCMProtectionCallback.
   int ProtectionRequest(const FecProtectionParams* delta_params,
                         const FecProtectionParams* key_params,
                         uint32_t* sent_video_rate_bps,
@@ skipping 30 matching lines @@
   const std::unique_ptr<RtcpBandwidthObserver> bandwidth_observer_;
   // RtpRtcp modules, declared here as they use other members on construction.
   const std::vector<RtpRtcp*> rtp_rtcp_modules_;
   PayloadRouter payload_router_;
   VideoCaptureInput input_;
 };
 }  // namespace internal
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIDEO_SEND_STREAM_H_