Add traces for some video receive statistics.

webrtc/video/receive_statistics_proxy.cc

Index: webrtc/video/receive_statistics_proxy.cc
diff --git a/webrtc/video/receive_statistics_proxy.cc b/webrtc/video/receive_statistics_proxy.cc
index 308424054b2eaf34e0535ac3c35d3d98cb04c311..61b2ad13987aae3afb41f7aed304480b07e9b81f 100644
--- a/webrtc/video/receive_statistics_proxy.cc
+++ b/webrtc/video/receive_statistics_proxy.cc
@@ -16,6 +16,7 @@
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
+#include "webrtc/base/trace_event.h"
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
 #include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/system_wrappers/include/field_trial.h"
@@ -413,6 +414,22 @@ void ReceiveStatisticsProxy::OnFrameBufferTimingsUpdated(
   // Network delay (rtt/2) + target_delay_ms (jitter delay + decode time +
   // render delay).
   delay_counter_.Add(target_delay_ms + avg_rtt_ms_ / 2);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.DecodeTimeInMs",
+                       "decode_ms", decode_ms, "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.MaxDecodeTimeInMs",
+                       "max_decode_ms", max_decode_ms, "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.CurrentDelayInMs",
+                       "current_delay_ms", current_delay_ms,
+                       "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.TargetDelayInMs",
+                       "target_delay_ms", target_delay_ms,
+                       "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.JitterBufferDelayInMs",
+                       "jitter_buffer_ms", jitter_buffer_ms,
+                       "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.RenderDelayInMs",
+                       "render_delay_ms", render_delay_ms,
+                       "ssrc", stats_.ssrc);
 }
 
 void ReceiveStatisticsProxy::RtcpPacketTypesCounterUpdated(
@@ -437,6 +454,10 @@ void ReceiveStatisticsProxy::StatisticsUpdated(
 
   if (first_report_block_time_ms_ == -1)
     first_report_block_time_ms_ = clock_->TimeInMilliseconds();
+
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.PacketsLost",
+                       "packets_lost", statistics.cumulative_lost,
+                       "ssrc", stats_.ssrc);
 }
 
 void ReceiveStatisticsProxy::CNameChanged(const char* cname, uint32_t ssrc) {
@@ -527,6 +548,13 @@ void ReceiveStatisticsProxy::OnRenderedFrame(const VideoFrame& frame) {
       }
     }
   }
+
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.ReceivedWidthInPixels",
+                       "width", width, "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.ReceivedHeightInPixels",
+                       "height", height, "ssrc", stats_.ssrc);
+  TRACE_EVENT_INSTANT1("webrtc_stats", "WebRTC.Video.OnRenderedFrame",
+                       "ssrc", stats_.ssrc);
 }
 
 void ReceiveStatisticsProxy::OnSyncOffsetUpdated(int64_t sync_offset_ms,