gpu: Make GPU command decoder know right format of a GPU video texture in Win.

content/common/gpu/media/dxva_video_decode_accelerator.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_COMMON_GPU_MEDIA_DXVA_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_DXVA_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <d3d9.h>
 // Work around bug in this header by disabling the relevant warning for it.
 // https://connect.microsoft.com/VisualStudio/feedback/details/911260/dxva2api-h-in-win8-sdk-triggers-c4201-with-w4
@@ skipping 47 matching lines @@
   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;
   virtual bool CanDecodeOnIOThread() override;
+  GLenum GetSurfaceInternalFormat() const override;
 
  private:
   typedef void* EGLConfig;
   typedef void* EGLSurface;
 
   // Creates and initializes an instance of the D3D device and the
   // corresponding device manager. The device manager instance is eventually
   // passed to the IMFTransform interface implemented by the decoder.
   bool CreateD3DDevManager();
 
@@ skipping 189 matching lines @@
   // Disallow rebinding WeakReference ownership to a different thread by
   // keeping a persistent reference. This avoids problems with the
   // thread safety of reaching into this class from multiple threads to
   // attain a WeakPtr.
   const base::WeakPtr<DXVAVideoDecodeAccelerator> weak_ptr_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_DXVA_VIDEO_DECODE_ACCELERATOR_H_