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

media/filters/video_renderer_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_FILTERS_VIDEO_RENDERER_IMPL_H_
 #define MEDIA_FILTERS_VIDEO_RENDERER_IMPL_H_
 
 #include <deque>
 
 #include "base/memory/ref_counted.h"
@@ skipping 48 matching lines @@
   virtual void Initialize(DemuxerStream* stream,
                           bool low_delay,
                           const PipelineStatusCB& init_cb,
                           const StatisticsCB& statistics_cb,
                           const TimeCB& max_time_cb,
                           const base::Closure& ended_cb,
                           const PipelineStatusCB& error_cb,
                           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;
   virtual void Stop(const base::Closure& callback) OVERRIDE;
   virtual void SetPlaybackRate(float playback_rate) OVERRIDE;
 
   // PlatformThread::Delegate implementation.
   virtual void ThreadMain() OVERRIDE;
 
  private:
@@ skipping 77 matching lines @@
   //       [kUninitialized]
   //              |
   //              | Initialize()
   //        [kInitializing]
   //              |
   //              V
   //   +------[kFlushed]<---------------OnVideoFrameStreamResetDone()
   //   |          | 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   ]
 
   // Simple state tracking variable.
   enum State {
     kUninitialized,
     kInitializing,
     kPrerolled,
-    kPaused,
     kFlushing,
     kFlushed,
     kPrerolling,
     kPlaying,
     kStopped,
   };
   State state_;
 
   // Video thread handle.
   base::PlatformThreadHandle thread_;
@@ skipping 36 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<VideoRendererImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_VIDEO_RENDERER_IMPL_H_