Revert of Switch to using media::TimeSource inside media::RendererImpl.

media/base/video_renderer.h

Index: media/base/video_renderer.h
diff --git a/media/base/video_renderer.h b/media/base/video_renderer.h
index e3d64ef9680587aab661f7a73b6a648567f73daa..591e5e050a1e64be2e7acda78ab6a6c9c445835f 100644
--- a/media/base/video_renderer.h
+++ b/media/base/video_renderer.h
@@ -19,6 +19,10 @@
 
 class MEDIA_EXPORT VideoRenderer {
  public:
+  // Used to update the pipeline's clock time. The parameter is the time that
+  // the clock should not exceed.
+  typedef base::Callback<void(base::TimeDelta)> TimeCB;
+
   // Used to query the current time or duration of the media.
   typedef base::Callback<base::TimeDelta()> TimeDeltaCB;
 
@@ -33,6 +37,8 @@
   // |statistics_cb| is executed periodically with video rendering stats, such
   // as dropped frames.
   //
+  // |time_cb| is executed whenever time has advanced by way of video rendering.
+  //
   // |buffering_state_cb| is executed when video rendering has either run out of
   // data or has enough data to continue playback.
   //
@@ -41,14 +47,18 @@
   // |error_cb| is executed if an error was encountered.
   //
   // |get_time_cb| is used to query the current media playback time.
+  //
+  // |get_duration_cb| is used to query the media duration.
   virtual void Initialize(DemuxerStream* stream,
                           bool low_delay,
                           const PipelineStatusCB& init_cb,
                           const StatisticsCB& statistics_cb,
+                          const TimeCB& time_cb,
                           const BufferingStateCB& buffering_state_cb,
                           const base::Closure& ended_cb,
                           const PipelineStatusCB& error_cb,
-                          const TimeDeltaCB& get_time_cb) = 0;
+                          const TimeDeltaCB& get_time_cb,
+                          const TimeDeltaCB& get_duration_cb) = 0;
 
   // Discards any video data and stops reading from |stream|, executing
   // |callback| when completed.