Remove VideoDecoder::PrepareForShutdownHack() and friends.

media/filters/video_renderer_base.h

 // Copyright (c) 2012 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_BASE_H_
 #define MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_
 
 #include <deque>
 
 #include "base/memory/ref_counted.h"
@@ skipping 50 matching lines @@
                           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;
-  virtual void PrepareForShutdownHack() OVERRIDE;
 
   // PlatformThread::Delegate implementation.
   virtual void ThreadMain() OVERRIDE;
 
   // Clients of this class (painter/compositor) should use GetCurrentFrame()
   // obtain ownership of VideoFrame, it should always relinquish the ownership
   // by use PutCurrentFrame(). Current frame is not guaranteed to be non-NULL.
   // It expects clients to use color-fill the background if current frame
   // is NULL. This could happen before pipeline is pre-rolled or during
   // pause/flush/preroll.
@@ skipping 167 matching lines @@
 
   // The last natural size |size_changed_cb_| was called with.
   gfx::Size last_natural_size_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoRendererBase);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_VIDEO_RENDERER_BASE_H_