media: Optimize HW Video to 2D Canvas copy.

cc/resources/media/skcanvas_video_renderer.h

Index: cc/resources/media/skcanvas_video_renderer.h
diff --git a/media/filters/skcanvas_video_renderer.h b/cc/resources/media/skcanvas_video_renderer.h
similarity index 56%
rename from media/filters/skcanvas_video_renderer.h
rename to cc/resources/media/skcanvas_video_renderer.h
index 9e3622d79c531058aee068ae8bce1e3ccc8de2e8..e293b3a15168ed94f3e149ddbe25508c7be132ce 100644
--- a/media/filters/skcanvas_video_renderer.h
+++ b/cc/resources/media/skcanvas_video_renderer.h
@@ -6,19 +6,22 @@
 #define MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
 
 #include "base/time/time.h"
-#include "media/base/media_export.h"
+#include "cc/base/cc_export.h"
+#include "cc/output/context_provider.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/rect.h"
 
 class SkCanvas;
 
 namespace media {
-
 class VideoFrame;
+}
+
+namespace cc {
 
 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
 // conversion and caching of resulting RGB bitmaps.
-class MEDIA_EXPORT SkCanvasVideoRenderer {
+class CC_EXPORT SkCanvasVideoRenderer {
  public:
   SkCanvasVideoRenderer();
   ~SkCanvasVideoRenderer();
@@ -30,17 +33,32 @@ class MEDIA_EXPORT SkCanvasVideoRenderer {
   void Paint(media::VideoFrame* video_frame,
              SkCanvas* canvas,
              const gfx::RectF& dest_rect,
-             uint8 alpha);
+             uint8 alpha,
+             ContextProvider* context_provider);
+
+  static void CopyVideoFrameToTexture(gpu::gles2::GLES2Interface* gl,
+                                      media::VideoFrame* video_frame,
+                                      unsigned int texture,
+                                      unsigned int level,
+                                      unsigned int internal_format,
+                                      unsigned int type,
+                                      bool premultiply_alpha,
+                                      bool flip_y);
 
  private:
+  void CleanUpTemporaryBuffers();
+
   // An RGB bitmap and corresponding timestamp of the previously converted
   // video frame data.
   SkBitmap last_frame_;
   base::TimeDelta last_frame_timestamp_;
+  // It's possible to be used by accelerated client and non-accelerated client.
+  SkBitmap accelerated_last_frame_;
+  base::TimeDelta accelerated_last_frame_timestamp_;
 
   DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
 };
 
-}  // namespace media
+}  // namespace cc
 
 #endif  // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_