Remove VideoRenderer::Pause() as it serves no real purpose.

media/filters/video_renderer_impl.h

Index: media/filters/video_renderer_impl.h
diff --git a/media/filters/video_renderer_impl.h b/media/filters/video_renderer_impl.h
index cf4061b03f6881d8a15a1c266e71df9277ecba54..4fef25d55c6ea405e710711e144392e1fe44fcee 100644
--- a/media/filters/video_renderer_impl.h
+++ b/media/filters/video_renderer_impl.h
@@ -66,7 +66,6 @@ class MEDIA_EXPORT VideoRendererImpl
                           const TimeDeltaCB& get_time_cb,
                           const TimeDeltaCB& get_duration_cb) OVERRIDE;
   virtual void Play(const base::Closure& callback) OVERRIDE;
-  virtual void Pause(const base::Closure& callback) OVERRIDE;
   virtual void Flush(const base::Closure& callback) OVERRIDE;
   virtual void Preroll(base::TimeDelta time,
                        const PipelineStatusCB& cb) OVERRIDE;
@@ -164,13 +163,13 @@ class MEDIA_EXPORT VideoRendererImpl
   //   |          | Preroll() or upon               ^
   //   |          V got first frame            [kFlushing]
   //   |      [kPrerolling]                         ^
-  //   |          |                                 | Flush()
+  //   |          |                                 |
   //   |          V Got enough frames               |
-  //   |      [kPrerolled]---------------------->[kPaused]
-  //   |          |                Pause()          ^
+  //   |      [kPrerolled]--------------------------|
+  //   |          |                Flush()          ^
   //   |          V Play()                          |
   //   |       [kPlaying]---------------------------|
-  //   |                           Pause()          ^ Pause()
+  //   |                           Flush()          ^ Flush()
   //   |                                            |
   //   +-----> [kStopped]                 [Any state other than]
   //                                      [   kUninitialized   ]
@@ -180,7 +179,6 @@ class MEDIA_EXPORT VideoRendererImpl
     kUninitialized,
     kInitializing,
     kPrerolled,
-    kPaused,
     kFlushing,
     kFlushed,
     kPrerolling,