Revert of Merge VideoDecodeAcceleratorImpl with VideoDecodeAccelerator

content/common/gpu/media/v4l2_video_decode_accelerator.h

 // Copyright 2014 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.
 //
 // This file contains an implementation of VideoDecodeAccelerator
 // that utilizes hardware video decoders, which expose Video4Linux 2 API
 // (http://linuxtv.org/downloads/v4l-dvb-apis/).
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <queue>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/media/v4l2_video_device.h"
+#include "content/common/gpu/media/video_decode_accelerator_impl.h"
 #include "media/base/limits.h"
 #include "media/base/video_decoder_config.h"
 #include "media/video/picture.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
@@ skipping 33 matching lines @@
 // Buffer creation is a two-step process that is serviced partially on the
 // Child thread, because we need to wait for the client to provide textures
 // for the buffers we allocate. We cannot keep the decoder thread running while
 // the client allocates Pictures for us, because we need to REQBUFS first to get
 // the required number of output buffers from the device and that cannot be done
 // unless we free the previous set of buffers, leaving the decoding in a
 // inoperable state for the duration of the wait for Pictures. So to prevent
 // subtle races (esp. if we get Reset() in the meantime), we block the decoder
 // thread while we wait for AssignPictureBuffers from the client.
 class CONTENT_EXPORT V4L2VideoDecodeAccelerator
-    : public media::VideoDecodeAccelerator {
+    : public VideoDecodeAcceleratorImpl {
  public:
   V4L2VideoDecodeAccelerator(
       EGLDisplay egl_display,
       EGLContext egl_context,
       const base::WeakPtr<Client>& io_client_,
       const base::Callback<bool(void)>& make_context_current,
       scoped_ptr<V4L2Device> device,
       const scoped_refptr<base::MessageLoopProxy>& io_message_loop_proxy);
   virtual ~V4L2VideoDecodeAccelerator();
 
   // media::VideoDecodeAccelerator implementation.
   // Note: Initialize() and Destroy() are synchronous.
   virtual bool Initialize(media::VideoCodecProfile profile,
                           Client* client) OVERRIDE;
   virtual void Decode(const media::BitstreamBuffer& bitstream_buffer) OVERRIDE;
   virtual void AssignPictureBuffers(
       const std::vector<media::PictureBuffer>& buffers) OVERRIDE;
   virtual void ReusePictureBuffer(int32 picture_buffer_id) OVERRIDE;
   virtual void Flush() OVERRIDE;
   virtual void Reset() OVERRIDE;
   virtual void Destroy() OVERRIDE;
+
+  // VideoDecodeAcceleratorImpl implementation.
   virtual bool CanDecodeOnIOThread() OVERRIDE;
 
  private:
   // These are rather subjectively tuned.
   enum {
     kInputBufferCount = 8,
     // TODO(posciak): determine input buffer size based on level limits.
     // See http://crbug.com/255116.
     // Input bitstream buffer size for up to 1080p streams.
     kInputBufferMaxSizeFor1080p = 1024 * 1024,
@@ skipping 329 matching lines @@
 
   // The WeakPtrFactory for |weak_this_|.
   base::WeakPtrFactory<V4L2VideoDecodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(V4L2VideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_