Support external buffer import in VDA interface and add a V4L2SVDA impl.

content/common/gpu/media/gpu_video_decode_accelerator_factory_impl.h

 // Copyright 2016 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_GPU_VIDEO_DECODE_ACCELERATOR_FACTORY_IMPL_H_
 #define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_FACTORY_IMPL_H_
 
 #include "base/callback.h"
 #include "base/threading/thread_checker.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
@@ skipping 51 matching lines @@
       const MakeGLContextCurrentCallback& make_context_current_cb,
       const BindGLImageCallback& bind_image_cb);
 
   static scoped_ptr<GpuVideoDecodeAcceleratorFactoryImpl>
   CreateWithGLES2Decoder(
       const GetGLContextCallback& get_gl_context_cb,
       const MakeGLContextCurrentCallback& make_context_current_cb,
       const BindGLImageCallback& bind_image_cb,
       const GetGLES2DecoderCallback& get_gles2_decoder_cb);
 
+  static scoped_ptr<GpuVideoDecodeAcceleratorFactoryImpl> CreateWithNoGL();
+
   static gpu::VideoDecodeAcceleratorCapabilities GetDecoderCapabilities(
       const gpu::GpuPreferences& gpu_preferences);
 
   scoped_ptr<media::VideoDecodeAccelerator> CreateVDA(
       media::VideoDecodeAccelerator::Client* client,
       const media::VideoDecodeAccelerator::Config& config,
       const gpu::GpuPreferences& gpu_preferences);
 
  private:
   GpuVideoDecodeAcceleratorFactoryImpl(
@@ skipping 35 matching lines @@
   const GetGLES2DecoderCallback get_gles2_decoder_cb_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAcceleratorFactoryImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_FACTORY_IMPL_H_