Implement framesDecoded stat in video receive ssrc stats.

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 171fab494b8248a531c109771dc6d01e0cddb061..a72b553aa1d3c57cd8a047e5c6e362d7b6d37731 100644
--- a/webrtc/media/base/mediachannel.h
+++ b/webrtc/media/base/mediachannel.h
@@ -700,6 +700,7 @@ struct VideoReceiverInfo : public MediaReceiverInfo {
         framerate_output(0),
         framerate_render_input(0),
         framerate_render_output(0),
+        frames_decoded(0),
         decode_ms(0),
         max_decode_ms(0),
         jitter_buffer_ms(0),
@@ -725,6 +726,7 @@ struct VideoReceiverInfo : public MediaReceiverInfo {
   int framerate_render_input;
   // Framerate that the renderer reports.
   int framerate_render_output;
+  int frames_decoded;

[hbos, 2016/10/20 16:47:23]

Should be uint32_t

[sakal, 2016/10/21 08:43:06]

Done.

 
   // All stats below are gathered per-VideoReceiver, but some will be correlated
   // across MediaStreamTracks.  NOTE(hta): when sinking stats into per-SSRC