media: Make GpuMemoryBuffers VideoFrame copies asynchronous.

media/blink/webmediaplayer_impl.h

 // Copyright 2013 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_BLINK_WEBMEDIAPLAYER_IMPL_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 22 matching lines @@
 
 namespace blink {
 class WebGraphicsContext3D;
 class WebLocalFrame;
 class WebMediaPlayerClient;
 class WebMediaPlayerEncryptedMediaClient;
 }
 
 namespace base {
 class SingleThreadTaskRunner;
+class TaskRunner;
 }
 
 namespace cc_blink {
 class WebLayerImpl;
 }
 
 namespace media {
 
 class AudioHardwareConfig;
 class ChunkDemuxer;
@@ skipping 186 matching lines @@
   blink::WebMediaPlayer::ReadyState ready_state_;
 
   // Preload state for when |data_source_| is created after setPreload().
   BufferedDataSource::Preload preload_;
 
   // Task runner for posting tasks on Chrome's main thread. Also used
   // for DCHECKs so methods calls won't execute in the wrong thread.
   const scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
 
   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
+  scoped_refptr<base::TaskRunner> worker_task_runner_;
   scoped_refptr<MediaLog> media_log_;
   Pipeline pipeline_;
 
   // The LoadType passed in the |load_type| parameter of the load() call.
   LoadType load_type_;
 
   // Cache of metadata for answering hasAudio(), hasVideo(), and naturalSize().
   PipelineMetadata pipeline_metadata_;
 
   // Whether the video is known to be opaque or not.
@@ skipping 70 matching lines @@
   scoped_ptr<blink::WebContentDecryptionModuleResult> set_cdm_result_;
 
   scoped_ptr<RendererFactory> renderer_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_