RTCMediaStreamTrackStats.framesReceived collected by RTCStatsCollector.

webrtc/media/base/mediachannel.h

Index: webrtc/media/base/mediachannel.h
diff --git a/webrtc/media/base/mediachannel.h b/webrtc/media/base/mediachannel.h
index 70d6268e47a930c8918a5a3192761e72fd311247..ecff95a42f8b1c66b077caa6ea3b0009ca0b4fca 100644
--- a/webrtc/media/base/mediachannel.h
+++ b/webrtc/media/base/mediachannel.h
@@ -749,6 +749,7 @@ struct VideoReceiverInfo : public MediaReceiverInfo {
         framerate_output(0),
         framerate_render_input(0),
         framerate_render_output(0),
+        frames_received(0),
         frames_decoded(0),
         decode_ms(0),
         max_decode_ms(0),
@@ -776,6 +777,7 @@ struct VideoReceiverInfo : public MediaReceiverInfo {
   int framerate_render_input;
   // Framerate that the renderer reports.
   int framerate_render_output;
+  uint32_t frames_received;
   uint32_t frames_decoded;
 
   // All stats below are gathered per-VideoReceiver, but some will be correlated