Give performance_browser_tests lots of love and attention.

media/cast/receiver/cast_receiver_impl.cc

Index: media/cast/receiver/cast_receiver_impl.cc
diff --git a/media/cast/receiver/cast_receiver_impl.cc b/media/cast/receiver/cast_receiver_impl.cc
index 1a4ebd83e1f13ddffd6a7faaa72d742db3e6e1cf..6c563e056c0f19cd463470bc4460e8efc997ec24 100644
--- a/media/cast/receiver/cast_receiver_impl.cc
+++ b/media/cast/receiver/cast_receiver_impl.cc
@@ -149,11 +149,9 @@ void CastReceiverImpl::DecodeEncodedVideoFrame(
   }
 
   // Used by chrome/browser/extension/api/cast_streaming/performance_test.cc
-  TRACE_EVENT_INSTANT2(
-      "cast_perf_test", "PullEncodedVideoFrame",
-      TRACE_EVENT_SCOPE_THREAD,
-      "rtp_timestamp", encoded_frame->rtp_timestamp.lower_32_bits(),
-      "render_time", encoded_frame->reference_time.ToInternalValue());
+  TRACE_EVENT_INSTANT1("cast_perf_test", "PullEncodedVideoFrame",
+                       TRACE_EVENT_SCOPE_THREAD, "rtp_timestamp",
+                       encoded_frame->rtp_timestamp.lower_32_bits());
 
   if (!video_decoder_)
     video_decoder_.reset(new VideoDecoder(cast_environment_, video_codec_));
@@ -217,10 +215,10 @@ void CastReceiverImpl::EmitDecodedVideoFrame(
     cast_environment->logger()->DispatchFrameEvent(std::move(playout_event));
 
     // Used by chrome/browser/extension/api/cast_streaming/performance_test.cc
-    TRACE_EVENT_INSTANT1(
-        "cast_perf_test", "FrameDecoded",
-        TRACE_EVENT_SCOPE_THREAD,
-        "rtp_timestamp", rtp_timestamp.lower_32_bits());
+    TRACE_EVENT_INSTANT2("cast_perf_test", "VideoFrameDecoded",
+                         TRACE_EVENT_SCOPE_THREAD, "rtp_timestamp",
+                         rtp_timestamp.lower_32_bits(), "playout_time",
+                         (playout_time - base::TimeTicks()).InMicroseconds());
   }
 
   callback.Run(video_frame, playout_time, is_continuous);