webgl: optimize webgl.texSubImage2D(video) path.

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 119 matching lines @@
 
   double mediaTimeForTimeValue(double timeValue) const override;
 
   unsigned decodedFrameCount() const override;
   unsigned droppedFrameCount() const override;
   unsigned audioDecodedByteCount() const override;
   unsigned videoDecodedByteCount() const override;
 
   bool copyVideoTextureToPlatformTexture(
       blink::WebGraphicsContext3D* web_graphics_context,
-      unsigned int texture,
-      unsigned int internal_format,
-      unsigned int type,
-      bool premultiply_alpha,
-      bool flip_y) override;
+      const CopyVideoTextureParams& params) override;
 
   blink::WebAudioSourceProvider* audioSourceProvider() override;
 
   MediaKeyException generateKeyRequest(
       const blink::WebString& key_system,
       const unsigned char* init_data,
       unsigned init_data_length) override;
 
   MediaKeyException addKey(const blink::WebString& key_system,
                            const unsigned char* key,
@@ skipping 176 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_