Allow callers of TimeSource::GetWallClockTime() to suspend time.

media/filters/video_renderer_algorithm.h

Index: media/filters/video_renderer_algorithm.h
diff --git a/media/filters/video_renderer_algorithm.h b/media/filters/video_renderer_algorithm.h
index 88e8766dab15d03c8cabc9179d63682a235a3e17..8da63d9ff3aa89d0177dddc99e26ebd7cb259fc2 100644
--- a/media/filters/video_renderer_algorithm.h
+++ b/media/filters/video_renderer_algorithm.h
@@ -44,10 +44,8 @@ namespace media {
 // Combined these three approaches enforce optimal smoothness in many cases.
 class MEDIA_EXPORT VideoRendererAlgorithm {
  public:
-  // Used to convert a media timestamp into wall clock time.
-  using TimeConverterCB = base::Callback<base::TimeTicks(base::TimeDelta)>;
-
-  explicit VideoRendererAlgorithm(const TimeConverterCB& time_converter_cb);
+  explicit VideoRendererAlgorithm(
+      const TimeSource::WallClockTimeCB& wall_clock_time_cb);
   ~VideoRendererAlgorithm();
 
   // Chooses the best frame for the interval [deadline_min, deadline_max] based
@@ -255,7 +253,7 @@ class MEDIA_EXPORT VideoRendererAlgorithm {
   bool have_rendered_frames_;
 
   // Callback used to convert media timestamps into wall clock timestamps.
-  const TimeConverterCB time_converter_cb_;
+  const TimeSource::WallClockTimeCB wall_clock_time_cb_;
 
   // The last |deadline_max| provided to Render(), used to predict whether
   // frames were rendered over cadence between Render() calls.