Revert of Plumb decoded video pixel format from GPU process to renderer.

media/gpu/vaapi_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.
 //
 // This file contains an implementation of VideoDecoderAccelerator
 // that utilizes hardware video decoder present on Intel CPUs.
 
 #ifndef MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_
 #define MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_
 
@@ skipping 62 matching lines @@
                                   gpu_memory_buffer_handles) override;
 #endif
   void ReusePictureBuffer(int32_t picture_buffer_id) override;
   void Flush() override;
   void Reset() override;
   void Destroy() override;
   bool TryToSetupDecodeOnSeparateThread(
       const base::WeakPtr<Client>& decode_client,
       const scoped_refptr<base::SingleThreadTaskRunner>& decode_task_runner)
       override;
+  VideoPixelFormat GetOutputFormat() const override;
 
   static media::VideoDecodeAccelerator::SupportedProfiles
   GetSupportedProfiles();
 
  private:
   class VaapiH264Accelerator;
   class VaapiVP8Accelerator;
   class VaapiVP9Accelerator;
 
   // Notify the client that an error has occurred and decoding cannot continue.
@@ skipping 226 matching lines @@
 
   // The WeakPtrFactory for |weak_this_|.
   base::WeakPtrFactory<VaapiVideoDecodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiVideoDecodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_VAAPI_VIDEO_DECODE_ACCELERATOR_H_