Report timing frames info in GetStats.

webrtc/video/video_stream_decoder.h

Index: webrtc/video/video_stream_decoder.h
diff --git a/webrtc/video/video_stream_decoder.h b/webrtc/video/video_stream_decoder.h
index b670b12659c1a8618ca686a611b9691f6a7355c4..3903fb559c045e99d441838f710e2b5115824ea9 100644
--- a/webrtc/video/video_stream_decoder.h
+++ b/webrtc/video/video_stream_decoder.h
@@ -78,6 +78,8 @@ class VideoStreamDecoder : public VCMReceiveCallback,
                                    int min_playout_delay_ms,
                                    int render_delay_ms) override;
 
+  void OnTimingFrameInfoUpdated(const TimingFrameInfo& info) override;
+
   void RegisterReceiveStatisticsProxy(
       ReceiveStatisticsProxy* receive_statistics_proxy);