media: Make GpuMemoryBuffers VideoFrame copies asynchronous.

media/base/renderer_factory.h

Index: media/base/renderer_factory.h
diff --git a/media/base/renderer_factory.h b/media/base/renderer_factory.h
index aea3a53496e6b27a2e45c54b930d00dcf38a2c94..4b35f01764b825771b4ddf36349e26fc36f5f226 100644
--- a/media/base/renderer_factory.h
+++ b/media/base/renderer_factory.h
@@ -13,6 +13,7 @@
 
 namespace base {
 class SingleThreadTaskRunner;
+class TaskRunner;
 }
 
 namespace media {
@@ -33,6 +34,7 @@ class MEDIA_EXPORT RendererFactory {
   // |video_renderer_sink| to render video.
   virtual 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) = 0;