gpu video: optimize HW video to SW canvas and implement it for WebRTC.

content/browser/renderer_host/render_widget_host_view_browsertest.cc

 // Copyright (c) 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.
 
 #include "base/barrier_closure.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "content/browser/gpu/compositor_util.h"
@@ skipping 458 matching lines @@
       return;
     }
 
     media::SkCanvasVideoRenderer video_renderer;
 
     SkBitmap bitmap;
     bitmap.allocN32Pixels(video_frame->visible_rect().width(),
                           video_frame->visible_rect().height());
     // Don't clear the canvas because drawing a video frame by Src mode.
     SkCanvas canvas(bitmap);
-    video_renderer.Copy(video_frame, &canvas);
+    video_renderer.Copy(video_frame, &canvas, media::Context3D());
     ReadbackResponse response = result ? READBACK_SUCCESS : READBACK_FAILED;
 
     ReadbackRequestCallbackTest(quit_callback, bitmap, response);
   }
 
   void SetExpectedCopyFromCompositingSurfaceResult(bool result,
                                                    const SkBitmap& bitmap) {
     expected_copy_from_compositing_surface_result_ = result;
     expected_copy_from_compositing_surface_bitmap_ = bitmap;
   }
@@ skipping 420 matching lines @@
                         testing::Values(GL_COMPOSITING, SOFTWARE_COMPOSITING));
 INSTANTIATE_TEST_CASE_P(
     GLAndSoftwareCompositing,
     CompositingRenderWidgetHostViewBrowserTestTabCaptureHighDPI,
     testing::Values(GL_COMPOSITING, SOFTWARE_COMPOSITING));
 
 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 
 }  // namespace
 }  // namespace content