media: Make GpuMemoryBuffers VideoFrame copies asynchronous.

media/renderers/default_renderer_factory.h

 // Copyright 2014 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 MEDIA_RENDERERS_DEFAULT_RENDERER_FACTORY_H_
 #define MEDIA_RENDERERS_DEFAULT_RENDERER_FACTORY_H_
 
 #include "base/callback.h"
 #include "media/base/media_export.h"
 #include "media/base/renderer_factory.h"
@@ skipping 10 matching lines @@
 class MEDIA_EXPORT DefaultRendererFactory : public RendererFactory {
  public:
   DefaultRendererFactory(
       const scoped_refptr<MediaLog>& media_log,
       const scoped_refptr<GpuVideoAcceleratorFactories>& gpu_factories,
       const AudioHardwareConfig& audio_hardware_config);
   ~DefaultRendererFactory() final;
 
   scoped_ptr<Renderer> CreateRenderer(
       const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
+      const scoped_refptr<base::TaskRunner>& worker_task_runner,
       AudioRendererSink* audio_renderer_sink,
       VideoRendererSink* video_renderer_sink) final;
 
  private:
   scoped_refptr<MediaLog> media_log_;
 
   // Factories for supporting video accelerators. May be null.
   scoped_refptr<GpuVideoAcceleratorFactories> gpu_factories_;
 
   const AudioHardwareConfig& audio_hardware_config_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultRendererFactory);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_DEFAULT_RENDERER_FACTORY_H_