Remove VideoDecoder::PrepareForShutdownHack() and friends.

content/renderer/media/capture_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 CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_
 #define CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_
 
 #include "base/time.h"
 #include "content/common/content_export.h"
 #include "media/base/pipeline_status.h"
@@ skipping 21 matching lines @@
       VideoCaptureImplManager* vc_manager,
       const media::VideoCaptureCapability& capability);
 
   // media::VideoDecoder implementation.
   virtual void Initialize(const scoped_refptr<media::DemuxerStream>& stream,
                           const media::PipelineStatusCB& status_cb,
                           const media::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 void PrepareForShutdownHack() OVERRIDE;
 
   // VideoCapture::EventHandler implementation.
   virtual void OnStarted(media::VideoCapture* capture) OVERRIDE;
   virtual void OnStopped(media::VideoCapture* capture) OVERRIDE;
   virtual void OnPaused(media::VideoCapture* capture) OVERRIDE;
   virtual void OnError(media::VideoCapture* capture, int error_code) OVERRIDE;
   virtual void OnRemoved(media::VideoCapture* capture) OVERRIDE;
   virtual void OnBufferReady(
       media::VideoCapture* capture,
       scoped_refptr<media::VideoCapture::VideoFrameBuffer> buf) OVERRIDE;
@@ skipping 34 matching lines @@
 
   // Delivers the frame to |read_cb_| and resets the callback.
   void DeliverFrame(const scoped_refptr<media::VideoFrame>& video_frame);
 
   scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
   scoped_refptr<VideoCaptureImplManager> vc_manager_;
   media::VideoCaptureCapability capability_;
   gfx::Size natural_size_;
   DecoderState state_;
   bool got_first_frame_;
-  bool shutting_down_;
   ReadCB read_cb_;
   base::Closure pending_stop_cb_;
   media::StatisticsCB statistics_cb_;
 
   media::VideoCaptureSessionId video_stream_id_;
   media::VideoCapture* capture_engine_;
   base::Time last_frame_timestamp_;
   base::Time start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(CaptureVideoDecoder);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_CAPTURE_VIDEO_DECODER_H_