Give performance_browser_tests lots of love and attention.

media/cast/sender/video_sender.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cast/sender/video_sender.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <cmath>
 #include <cstring>
@@ skipping 127 matching lines @@
     NOTREACHED();
     return;
   }
 
   const RtpTimeTicks rtp_timestamp =
       RtpTimeTicks::FromTimeDelta(video_frame->timestamp(), kVideoFrequency);
   LogVideoCaptureTimestamps(cast_environment_.get(), *video_frame,
                             rtp_timestamp);
 
   // Used by chrome/browser/extension/api/cast_streaming/performance_test.cc
-  TRACE_EVENT_INSTANT2(
-      "cast_perf_test", "InsertRawVideoFrame",
-      TRACE_EVENT_SCOPE_THREAD,
-      "timestamp", reference_time.ToInternalValue(),
-      "rtp_timestamp", rtp_timestamp.lower_32_bits());
+  TRACE_EVENT_INSTANT2("cast_perf_test", "InsertRawVideoFrame",
+                       TRACE_EVENT_SCOPE_THREAD, "timestamp",
+                       (reference_time - base::TimeTicks()).InMicroseconds(),
+                       "rtp_timestamp", rtp_timestamp.lower_32_bits());
 
   bool low_latency_mode;
   if (video_frame->metadata()->GetBoolean(
           VideoFrameMetadata::INTERACTIVE_CONTENT, &low_latency_mode)) {
     if (low_latency_mode && !low_latency_mode_) {
       VLOG(1) << "Interactive mode playout time " << min_playout_delay_;
       playout_delay_change_cb_.Run(min_playout_delay_);
     }
     low_latency_mode_ = low_latency_mode;
   }
@@ skipping 172 matching lines @@
         media::VideoFrameMetadata::RESOURCE_UTILIZATION,
         encoded_frame->dependency == EncodedFrame::KEY ?
             std::min(1.0, attenuated_utilization) : attenuated_utilization);
   }
 
   SendEncodedFrame(encoder_bitrate, std::move(encoded_frame));
 }
 
 }  // namespace cast
 }  // namespace media