Merge VideoDecodeAcceleratorImpl with VideoDecodeAccelerator

content/common/gpu/media/video_decode_accelerator_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 CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_ACCELERATOR_IMPL_H_
-#define CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_ACCELERATOR_IMPL_H_
-
-#include "content/common/content_export.h"
-#include "media/video/video_decode_accelerator.h"
-
-namespace content {
-
-class CONTENT_EXPORT VideoDecodeAcceleratorImpl
-    : public media::VideoDecodeAccelerator {
- public:
-  VideoDecodeAcceleratorImpl();
-
-  // Returns true if VDA::Decode and VDA::Client callbacks can run on the IO
-  // thread. Otherwise they will run on the GPU child thread. The purpose of
-  // running Decode on the IO thread is to reduce decode latency. Note Decode
-  // should return as soon as possible and not block on the IO thread. Also,
-  // PictureReady should be run on the child thread if a picture is delivered
-  // the first time so it can be cleared.
-  virtual bool CanDecodeOnIOThread();
-
- protected:
-  virtual ~VideoDecodeAcceleratorImpl();
-};
-
-}  // namespace content
-
-namespace base {
-
-template <class T>
-struct DefaultDeleter;
-
-// Specialize DefaultDeleter so that scoped_ptr<VideoDecodeAcceleratorImpl>
-// always uses "Destroy()" instead of trying to use the destructor.
-template <>
-struct DefaultDeleter<content::VideoDecodeAcceleratorImpl> {
- public:
-  inline void operator()(void* video_decode_accelerator) const {
-    static_cast<content::VideoDecodeAcceleratorImpl*>(video_decode_accelerator)
-        ->Destroy();
-  }
-};
-
-}  // namespace base
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_ACCELERATOR_IMPL_H_