Not for submission. fastSeek prototype.

media/blink/webmediaplayer_impl.h

Index: media/blink/webmediaplayer_impl.h
diff --git a/media/blink/webmediaplayer_impl.h b/media/blink/webmediaplayer_impl.h
index 16f3bbdbec91f6973d68da6e9dcb52e15f4c662f..4b5a69bb1305fa57d4aa72583935ee27e2052279 100644
--- a/media/blink/webmediaplayer_impl.h
+++ b/media/blink/webmediaplayer_impl.h
@@ -24,6 +24,7 @@
 #include "media/base/media_tracks.h"
 #include "media/base/pipeline_impl.h"
 #include "media/base/renderer_factory.h"
+#include "media/base/stream_position.h"
 #include "media/base/surface_manager.h"
 #include "media/base/text_track.h"
 #include "media/blink/buffered_data_source_host_impl.h"
@@ -107,6 +108,7 @@ class MEDIA_BLINK_EXPORT WebMediaPlayerImpl
   void pause() override;
   bool supportsSave() const override;
   void seek(double seconds) override;
+  void fastSeek(double seconds);
   void setRate(double rate) override;
   void setVolume(double volume) override;
   void setSinkId(const blink::WebString& sink_id,
@@ -251,7 +253,7 @@ class MEDIA_BLINK_EXPORT WebMediaPlayerImpl
 
   // Actually seek. Avoids causing |should_notify_time_changed_| to be set when
   // |time_updated| is false.
-  void DoSeek(base::TimeDelta time, bool time_updated);
+  void DoSeek(StreamPosition position, bool time_updated);
 
   // Ask for the renderer to be restarted (destructed and recreated).
   void ScheduleRestart();