media: Optimize HW Video to 2D Canvas copy.

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>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
 #include "media/base/audio_renderer_sink.h"
 #include "media/base/media_export.h"
 #include "media/base/pipeline.h"
 #include "media/base/renderer.h"
 #include "media/base/text_track.h"
 #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;
 }
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace cc_blink {
 class WebLayerImpl;
 }
 
 namespace media {
 
 class AudioHardwareConfig;
 class ChunkDemuxer;
 class EncryptedMediaPlayerSupport;
 class GpuVideoAcceleratorFactories;
 class MediaLog;
 class VideoFrameCompositor;
 class WebAudioSourceProviderImpl;
 class WebMediaPlayerDelegate;
-class WebMediaPlayerParams;
 class WebTextTrackImpl;
 
 // The canonical implementation of blink::WebMediaPlayer that's backed by
 // Pipeline. Handles normal resource loading, Media Source, and
 // Encrypted Media.
 class MEDIA_EXPORT WebMediaPlayerImpl
     : public NON_EXPORTED_BASE(blink::WebMediaPlayer),
       public base::SupportsWeakPtr<WebMediaPlayerImpl> {
  public:
   // Constructs a WebMediaPlayer implementation using Chromium's media stack.
@@ skipping 198 matching lines @@
   double pending_seek_seconds_;
 
   // Tracks whether to issue time changed notifications during buffering state
   // changes.
   bool should_notify_time_changed_;
 
   blink::WebMediaPlayerClient* client_;
 
   base::WeakPtr<WebMediaPlayerDelegate> delegate_;
 
-  base::Callback<void(const base::Closure&)> defer_load_cb_;
+  WebMediaPlayerParams::DeferLoadCB defer_load_cb_;
+  Context3DProviderCB shared_main_thread_context_3d_provider_cb_;

[scherkus (not reviewing), 2014/10/30 20:40:11]

ditto for naming: drop the the "shared_main_thread_" part

[dshwang, 2014/10/31 09:29:16]

Done.

 
   // Factories for supporting video accelerators. May be null.
   scoped_refptr<GpuVideoAcceleratorFactories> gpu_factories_;
 
   // Routes audio playback to either AudioRendererSink or WebAudio.
   scoped_refptr<WebAudioSourceProviderImpl> audio_source_provider_;
 
   bool supports_save_;
 
   // These two are mutually exclusive:
@@ skipping 25 matching lines @@
   const AudioHardwareConfig& audio_hardware_config_;
 
   scoped_ptr<Renderer> renderer_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_