Incorporating logging into Cast

media/cast/cast_defines.h

Index: media/cast/cast_defines.h
diff --git a/media/cast/cast_defines.h b/media/cast/cast_defines.h
index defa1db6fac893fe4b897d5e3677c49d6c4bb6b8..140427a0cb1fd679765cf45f407ed2d3dee2eeeb 100644
--- a/media/cast/cast_defines.h
+++ b/media/cast/cast_defines.h
@@ -132,6 +132,13 @@ inline base::TimeTicks ConvertNtpToTimeTicks(uint32 ntp_seconds,
   return base::TimeTicks::UnixEpoch() + elapsed_since_unix_epoch;
 }
 
+inline uint32 GetVideoRtpTimestamp(const base::TimeTicks& time_ticks) {
+  base::TimeTicks zero_time;
+  base::TimeDelta recorded_delta = time_ticks - zero_time;
+  // Timestamp is in 90 KHz for video.
+  return static_cast<uint32>(recorded_delta.InMilliseconds() * 90);
+}
+
 }  // namespace cast
 }  // namespace media