Adding command line switch --enable-deferred-2d-canvas

chrome/browser/chrome_content_browser_client.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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 1202 matching lines @@
         command_line.HasSwitch(switches::kEnableThreadedCompositing);
     web_prefs.force_compositing_mode =
         command_line.HasSwitch(switches::kForceCompositingMode);
     web_prefs.fixed_position_compositing_enabled =
         command_line.HasSwitch(switches::kEnableCompositingForFixedPosition);
     web_prefs.allow_webui_compositing =
         command_line.HasSwitch(switches::kAllowWebUICompositing);
     web_prefs.accelerated_2d_canvas_enabled =
         GpuProcessHost::gpu_enabled() &&
         !command_line.HasSwitch(switches::kDisableAccelerated2dCanvas);
+    web_prefs.deferred_2d_canvas_enabled =
+        command_line.HasSwitch(switches::kEnableDeferred2dCanvas);
     web_prefs.accelerated_painting_enabled =
         GpuProcessHost::gpu_enabled() &&
         command_line.HasSwitch(switches::kEnableAcceleratedPainting);
     web_prefs.accelerated_filters_enabled =
         GpuProcessHost::gpu_enabled() &&
         command_line.HasSwitch(switches::kEnableAcceleratedFilters);
     web_prefs.accelerated_layers_enabled =
         web_prefs.accelerated_animation_enabled =
             !command_line.HasSwitch(switches::kDisableAcceleratedLayers);
     web_prefs.composite_to_texture_enabled =
@@ skipping 218 matching lines @@
 #if defined(USE_NSS)
 crypto::CryptoModuleBlockingPasswordDelegate*
     ChromeContentBrowserClient::GetCryptoPasswordDelegate(
         const GURL& url) {
   return browser::NewCryptoModuleBlockingDialogDelegate(
       browser::kCryptoModulePasswordKeygen, url.host());
 }
 #endif
 
 }  // namespace chrome