CL for perf tryjob on linux

media/base/wall_clock_time_source.h

Index: media/base/wall_clock_time_source.h
diff --git a/media/base/wall_clock_time_source.h b/media/base/wall_clock_time_source.h
index 1f79ab76b1d1729fed7dfd206afc0d6125ca95de..2555918ab7e23405cd211fceb99db266734c237b 100644
--- a/media/base/wall_clock_time_source.h
+++ b/media/base/wall_clock_time_source.h
@@ -24,7 +24,7 @@ class MEDIA_EXPORT WallClockTimeSource : public TimeSource {
   void StopTicking() override;
   void SetPlaybackRate(double playback_rate) override;
   void SetMediaTime(base::TimeDelta time) override;
-  base::TimeDelta CurrentMediaTime() override;
+  base::TimeDelta CurrentMediaTime(base::TimeTicks* reference) override;
   bool GetWallClockTimes(
       const std::vector<base::TimeDelta>& media_timestamps,
       std::vector<base::TimeTicks>* wall_clock_times) override;
@@ -34,7 +34,7 @@ class MEDIA_EXPORT WallClockTimeSource : public TimeSource {
   }
 
  private:
-  base::TimeDelta CurrentMediaTime_Locked();
+  base::TimeDelta CurrentMediaTime_Locked(base::TimeTicks* reference);
 
   // Allow for an injectable tick clock for testing.
   base::DefaultTickClock default_tick_clock_;