Implement googContentType GetStats metric reported on receive side.

webrtc/api/statstypes.cc

 /*
  *  Copyright 2014 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 502 matching lines @@
     case kStatsValueNameFrameRateDecoded:
       return "googFrameRateDecoded";
     case kStatsValueNameFrameRateOutput:
       return "googFrameRateOutput";
     case kStatsValueNameDecodeMs:
       return "googDecodeMs";
     case kStatsValueNameMaxDecodeMs:
       return "googMaxDecodeMs";
     case kStatsValueNameCurrentDelayMs:
       return "googCurrentDelayMs";
+    case kStatsValueNameContentType:

[tommi, 2017/08/30 15:03:27]

see for example where kStatsValueNameCurrentDelayMs is, in the header file.

[ilnik, 2017/08/30 15:30:24]

Moved it to alphabetically correct place.

+      return "googContentType";
     case kStatsValueNameTargetDelayMs:
       return "googTargetDelayMs";
     case kStatsValueNameJitterBufferMs:
       return "googJitterBufferMs";
     case kStatsValueNameMinPlayoutDelayMs:
       return "googMinPlayoutDelayMs";
     case kStatsValueNameRenderDelayMs:
       return "googRenderDelayMs";
     case kStatsValueNameCaptureStartNtpTimeMs:
       return "googCaptureStartNtpTimeMs";
@@ skipping 261 matching lines @@
 // Looks for a report with the given |id|.  If one is not found, null
 // will be returned.
 StatsReport* StatsCollection::Find(const StatsReport::Id& id) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   Container::iterator it = std::find_if(list_.begin(), list_.end(),
       [&id](const StatsReport* r)->bool { return r->id()->Equals(id); });
   return it == list_.end() ? nullptr : *it;
 }
 
 }  // namespace webrtc