Report timing frames info in GetStats.

webrtc/video/receive_statistics_proxy.h

Index: webrtc/video/receive_statistics_proxy.h
diff --git a/webrtc/video/receive_statistics_proxy.h b/webrtc/video/receive_statistics_proxy.h
index 626b56dcea7deab8307f6e4a3263082e602a50f2..1cfeca651327c61f32b36a2249ac109565cfe7fc 100644
--- a/webrtc/video/receive_statistics_proxy.h
+++ b/webrtc/video/receive_statistics_proxy.h
@@ -46,6 +46,8 @@ class ReceiveStatisticsProxy : public VCMReceiveStatisticsCallback,
 
   VideoReceiveStream::Stats GetStats() const;
 
+  rtc::Optional<TimingFrameInfo> GetAndResetTimingFrameInfo();
+
   void OnDecodedFrame(rtc::Optional<uint8_t> qp, VideoContentType content_type);
   void OnSyncOffsetUpdated(int64_t sync_offset_ms, double estimated_freq_khz);
   void OnRenderedFrame(const VideoFrame& frame);
@@ -69,6 +71,8 @@ class ReceiveStatisticsProxy : public VCMReceiveStatisticsCallback,
                                    int min_playout_delay_ms,
                                    int render_delay_ms) override;
 
+  void OnTimingFrameInfoUpdated(const TimingFrameInfo& info) override;
+
   // Overrides RtcpStatisticsCallback.
   void StatisticsUpdated(const webrtc::RtcpStatistics& statistics,
                          uint32_t ssrc) override;
@@ -157,6 +161,7 @@ class ReceiveStatisticsProxy : public VCMReceiveStatisticsCallback,
   mutable std::map<int64_t, size_t> frame_window_ GUARDED_BY(&crit_);
   VideoContentType last_content_type_ GUARDED_BY(&crit_);
   rtc::Optional<int64_t> last_decoded_frame_time_ms_;
+  rtc::Optional<TimingFrameInfo> timing_frame_info_ GUARDED_BY(&crit_);
 };
 
 }  // namespace webrtc