Implement media::VideoDecodeAccelerator on Mac

ui/gfx/video_decode_acceleration_support_mac.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 UI_GFX_VIDEO_DECODE_ACCELERATION_SUPPORT_MAC_H_
 #define UI_GFX_VIDEO_DECODE_ACCELERATION_SUPPORT_MAC_H_
 #pragma once
 
 #include <CoreFoundation/CoreFoundation.h>
 #include <CoreVideo/CoreVideo.h>
@@ skipping 20 matching lines @@
 #endif
 
 namespace gfx {
 
 // This Mac OS X-specific class provides dynamically linked access to
 // VideoDecodeAcceleration.framework, which is only available on 10.6 and later.
 class UI_EXPORT VideoDecodeAccelerationSupport :
     public base::RefCountedThreadSafe<VideoDecodeAccelerationSupport> {
  public:
   enum Status {
-    VDA_SUCCESS = 0,
-    VDA_LOAD_FRAMEWORK_ERROR,
-    VDA_HARDWARE_NOT_SUPPORTED_ERROR,
-    VDA_OTHER_ERROR,
+    SUCCESS = 0,
+    LOAD_FRAMEWORK_ERROR,
+    HARDWARE_NOT_SUPPORTED_ERROR,
+    OTHER_ERROR,
   };
 
   typedef base::Callback<void(CVImageBufferRef, int status)> FrameReadyCallback;
 
   VideoDecodeAccelerationSupport();
 
   // Calls the create function.
   Status Create(int width, int height,
                 int pixel_format,
                 const void* avc_bytes, size_t avc_size);
@@ skipping 37 matching lines @@
   // A reference to the message loop that this object was created on. This is
   // used to invoke the frame ready callback on the correct thread.
   scoped_refptr<base::MessageLoopProxy> loop_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoDecodeAccelerationSupport);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_VIDEO_DECODE_ACCELERATION_SUPPORT_MAC_H_