media: Optimize HW Video to 2D Canvas copy.

media/blink/webmediaplayer_impl.h

Index: media/blink/webmediaplayer_impl.h
diff --git a/media/blink/webmediaplayer_impl.h b/media/blink/webmediaplayer_impl.h
index bec5747e5eb849e91e1b381386c9324493b04671..9e064f34ca085c58d3852d5989a9ad4d9f898095 100644
--- a/media/blink/webmediaplayer_impl.h
+++ b/media/blink/webmediaplayer_impl.h
@@ -22,15 +22,16 @@
 #include "media/blink/buffered_data_source.h"
 #include "media/blink/buffered_data_source_host_impl.h"
 #include "media/blink/video_frame_compositor.h"
+#include "media/blink/webmediaplayer_params.h"
 #include "media/filters/skcanvas_video_renderer.h"
 #include "third_party/WebKit/public/platform/WebAudioSourceProvider.h"
 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h"
-#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerClient.h"
 #include "url/gurl.h"
 
 namespace blink {
+class WebGraphicsContext3D;
 class WebLocalFrame;
 }
 
@@ -52,7 +53,6 @@ class MediaLog;
 class VideoFrameCompositor;
 class WebAudioSourceProviderImpl;
 class WebMediaPlayerDelegate;
-class WebMediaPlayerParams;
 class WebTextTrackImpl;
 
 // The canonical implementation of blink::WebMediaPlayer that's backed by
@@ -271,7 +271,8 @@ class MEDIA_EXPORT WebMediaPlayerImpl
 
   base::WeakPtr<WebMediaPlayerDelegate> delegate_;
 
-  base::Callback<void(const base::Closure&)> defer_load_cb_;
+  WebMediaPlayerParams::DeferLoadCB defer_load_cb_;
+  WebMediaPlayerParams::Context3DProviderCB context_3d_provider_cb_;
 
   // Factories for supporting video accelerators. May be null.
   scoped_refptr<GpuVideoAcceleratorFactories> gpu_factories_;