Add QP stats for received video streams to StatsReport.

talk/app/webrtc/statstypes.cc

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 538 matching lines @@
     case kStatsValueNameNacksSent:
       return "googNacksSent";
     case kStatsValueNamePreemptiveExpandRate:
       return "googPreemptiveExpandRate";
     case kStatsValueNamePlisReceived:
       return "googPlisReceived";
     case kStatsValueNamePlisSent:
       return "googPlisSent";
     case kStatsValueNamePreferredJitterBufferMs:
       return "googPreferredJitterBufferMs";
+    case kStatsValueNameQpReceived:
+      return "googQpReceived";
     case kStatsValueNameReceiving:
       return "googReadable";
     case kStatsValueNameRemoteAddress:
       return "googRemoteAddress";
     case kStatsValueNameRemoteCandidateId:
       return "remoteCandidateId";
     case kStatsValueNameRemoteCandidateType:
       return "googRemoteCandidateType";
     case kStatsValueNameRemoteCertificateId:
       return "remoteCertificateId";
@@ skipping 204 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