Add ToString method to AggregatedStats and log stats at the end of a call.

webrtc/video/send_delay_stats.cc

 /*
  *  Copyright (c) 2016 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 27 matching lines @@
   }
   UpdateHistograms();
 }
 
 void SendDelayStats::UpdateHistograms() {
   rtc::CritScope lock(&crit_);
   for (const auto& it : send_delay_counters_) {
     AggregatedStats stats = it.second->GetStats();
     if (stats.num_samples >= kMinRequiredPeriodicSamples) {
       RTC_HISTOGRAM_COUNTS_10000("WebRTC.Video.SendDelayInMs", stats.average);
+      LOG(LS_INFO) << "WebRTC.Video.SendDelayInMs, " << stats.ToString();
     }
   }
 }
 
 void SendDelayStats::AddSsrcs(const VideoSendStream::Config& config) {
   rtc::CritScope lock(&crit_);
   if (ssrcs_.size() > kMaxSsrcMapSize)
     return;
   for (const auto& ssrc : config.rtp.ssrcs)
     ssrcs_.insert(ssrc);
@@ skipping 51 matching lines @@
     auto it = packets->begin();
     if (now - it->second.capture_time_ms < kMaxSentPacketDelayMs)
       break;
 
     packets->erase(it);
     ++num_old_packets_;
   }
 }
 
 }  // namespace webrtc