Remove VideoDecoder::PrepareForShutdownHack() and friends.

media/filters/gpu_video_decoder.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_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 52 matching lines @@
                   const scoped_refptr<Factories>& factories);
 
   // VideoDecoder implementation.
   virtual void Initialize(const scoped_refptr<DemuxerStream>& stream,
                           const PipelineStatusCB& status_cb,
                           const StatisticsCB& statistics_cb) OVERRIDE;
   virtual void Read(const ReadCB& read_cb) OVERRIDE;
   virtual void Reset(const base::Closure& closure) OVERRIDE;
   virtual void Stop(const base::Closure& closure) OVERRIDE;
   virtual bool HasAlpha() const OVERRIDE;
-  virtual void PrepareForShutdownHack() OVERRIDE;
 
   // VideoDecodeAccelerator::Client implementation.
   virtual void NotifyInitializeDone() OVERRIDE;
   virtual void ProvidePictureBuffers(uint32 count,
                                      const gfx::Size& size,
                                      uint32 texture_target) OVERRIDE;
   virtual void DismissPictureBuffer(int32 id) OVERRIDE;
   virtual void PictureReady(const media::Picture& picture) OVERRIDE;
   virtual void NotifyEndOfBitstreamBuffer(int32 id) OVERRIDE;
   virtual void NotifyFlushDone() OVERRIDE;
@@ skipping 124 matching lines @@
     gfx::Size natural_size;
   };
   std::list<BufferData> input_buffer_data_;
 
   // picture_buffer_id and the frame wrapping the corresponding Picture, for
   // frames that have been decoded but haven't been requested by a Read() yet.
   std::list<scoped_refptr<VideoFrame> > ready_video_frames_;
   int64 next_picture_buffer_id_;
   int64 next_bitstream_buffer_id_;
 
-  // Indicates PrepareForShutdownHack()'s been called.  Makes further calls to
-  // this class not require the render thread's loop to be processing.
-  bool shutting_down_;
-
   // Indicates decoding error occurred.
   bool error_occured_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_