Revert of Add accelerated VP9 decode infrastructure and an implementation for VA-API.

content/common/gpu/media/vp9_picture.h

-// Copyright 2015 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_VP9_PICTURE_H_
-#define CONTENT_COMMON_GPU_MEDIA_VP9_PICTURE_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "media/filters/vp9_parser.h"
-
-namespace content {
-
-class V4L2VP9Picture;
-class VaapiVP9Picture;
-
-class VP9Picture : public base::RefCounted<VP9Picture> {
- public:
-  VP9Picture();
-
-  virtual V4L2VP9Picture* AsV4L2VP9Picture();
-  virtual VaapiVP9Picture* AsVaapiVP9Picture();
-
-  scoped_ptr<media::Vp9FrameHeader> frame_hdr;
-
- protected:
-  friend class base::RefCounted<VP9Picture>;
-  virtual ~VP9Picture();
-
-  DISALLOW_COPY_AND_ASSIGN(VP9Picture);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_VP9_PICTURE_H_