Add reporting of googContentType via GetStats on send side

webrtc/pc/statscollector.cc

 /*
  *  Copyright 2012 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 292 matching lines @@
     { StatsReport::kStatsValueNameNacksReceived, info.nacks_rcvd },
     { StatsReport::kStatsValueNamePacketsLost, info.packets_lost },
     { StatsReport::kStatsValueNamePacketsSent, info.packets_sent },
     { StatsReport::kStatsValueNamePlisReceived, info.plis_rcvd },
     { StatsReport::kStatsValueNameFramesEncoded, info.frames_encoded },
   };
 
   for (const auto& i : ints)
     report->AddInt(i.name, i.value);
   report->AddString(StatsReport::kStatsValueNameMediaType, "video");
+  report->AddString(
+      StatsReport::kStatsValueNameContentType,
+      webrtc::videocontenttypehelpers::ToString(info.content_type));
 }
 
 void ExtractStats(const cricket::BandwidthEstimationInfo& info,
                   double stats_gathering_started,
                   StatsReport* report) {
   RTC_DCHECK(report->type() == StatsReport::kStatsReportTypeBwe);
 
   report->set_timestamp(stats_gathering_started);
   const IntForAdd ints[] = {
     { StatsReport::kStatsValueNameAvailableSendBandwidth,
@@ skipping 707 matching lines @@
     StatsReport* report = entry.second;
     report->set_timestamp(stats_gathering_started_);
   }
 }
 
 void StatsCollector::ClearUpdateStatsCacheForTest() {
   stats_gathering_started_ = 0;
 }
 
 }  // namespace webrtc