Remove --disable-accelerated-video and GPU_FEATURE_TYPE_ACCELERATED_VIDEO

content/browser/renderer_host/render_view_host_impl.cc

 // 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.
 
 #include "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 411 matching lines @@
       atoi(command_line.GetSwitchValueASCII(
       switches::kAcceleratedCanvas2dMSAASampleCount).c_str());
   prefs.deferred_filters_enabled =
       command_line.HasSwitch(switches::kEnableDeferredFilters);
   prefs.container_culling_enabled =
       command_line.HasSwitch(switches::kEnableContainerCulling);
   prefs.accelerated_compositing_for_3d_transforms_enabled =
       prefs.accelerated_compositing_for_animation_enabled =
           !command_line.HasSwitch(switches::kDisableAcceleratedLayers);
   prefs.accelerated_compositing_for_plugins_enabled = true;
-  prefs.accelerated_compositing_for_video_enabled =
-      !command_line.HasSwitch(switches::kDisableAcceleratedVideo);
+  prefs.accelerated_compositing_for_video_enabled = true;

[danakj, 2014/04/16 22:35:41]

can set true in the constructor?

[piman, 2014/04/16 22:48:20]

Done, let's give that a try.

   prefs.lazy_layout_enabled =
       command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures);
   prefs.region_based_columns_enabled =
       command_line.HasSwitch(switches::kEnableRegionBasedColumns);
   prefs.threaded_html_parser =
       !command_line.HasSwitch(switches::kDisableThreadedHTMLParser);
   if (command_line.HasSwitch(cc::switches::kEnablePinchVirtualViewport)) {
     prefs.pinch_virtual_viewport_enabled = true;
     prefs.pinch_overlay_scrollbar_thickness = 10;
   }
@@ skipping 1334 matching lines @@
   return true;
 }
 
 void RenderViewHostImpl::AttachToFrameTree() {
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->ResetForMainFrameSwap();
 }
 
 }  // namespace content