Re-enable GPU-GPU copies of video textures to GL_RED

media/renderers/skcanvas_video_renderer.h

 // Copyright (c) 2012 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_RENDERERS_SKCANVAS_VIDEO_RENDERER_H_
 #define MEDIA_RENDERERS_SKCANVAS_VIDEO_RENDERER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 51 matching lines @@
             cc::PaintCanvas* canvas,
             const Context3D& context_3d);
 
   // Convert the contents of |video_frame| to raw RGB pixels. |rgb_pixels|
   // should point into a buffer large enough to hold as many 32 bit RGBA pixels
   // as are in the visible_rect() area of the frame.
   static void ConvertVideoFrameToRGBPixels(const media::VideoFrame* video_frame,
                                            void* rgb_pixels,
                                            size_t row_bytes);
 
-  enum SingleFrameCopyMode {
-    SingleFrameForVideoElementOrCanvas,
-    SingleFrameForWebGL
-  };
-
   // Copy the contents of texture of |video_frame| to texture |texture|.
   // |level|, |internal_format|, |type| specify target texture |texture|.
   // The format of |video_frame| must be VideoFrame::NATIVE_TEXTURE.
   // |copy_mode| alters how the copy is done, and takes into consideration
   // whether the caller will clip the texture to the frame's |visible_rect|,
   // or expects this to be done internally.
   static void CopyVideoFrameSingleTextureToGLTexture(
       gpu::gles2::GLES2Interface* gl,
       VideoFrame* video_frame,
-      SingleFrameCopyMode copy_mode,
       unsigned int target,
       unsigned int texture,
       unsigned int internal_format,
       unsigned int format,
       unsigned int type,
       int level,
       bool premultiply_alpha,
       bool flip_y);
 
   // Copy the contents of texture of |video_frame| to texture |texture| in
@@ skipping 86 matching lines @@
 
   // Used for unit test.
   SkISize last_image_dimensions_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_SKCANVAS_VIDEO_RENDERER_H_