Fix a bug so GPU blacklist for accelerated 2d canvas is honored.

chrome/browser/tab_contents/render_view_host_delegate_helper.cc

 // Copyright (c) 2011 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/tab_contents/render_view_host_delegate_helper.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/string_util.h"
@@ skipping 473 matching lines @@
   }
 
   {  // Certain GPU features might have been blacklisted.
     GpuDataManager* gpu_data_manager = GpuDataManager::GetInstance();
     DCHECK(gpu_data_manager);
     uint32 blacklist_flags = gpu_data_manager->GetGpuFeatureFlags().flags();
     if (blacklist_flags & GpuFeatureFlags::kGpuFeatureAcceleratedCompositing)
       web_prefs.accelerated_compositing_enabled = false;
     if (blacklist_flags & GpuFeatureFlags::kGpuFeatureWebgl)
       web_prefs.experimental_webgl_enabled = false;
+    if (blacklist_flags & GpuFeatureFlags::kGpuFeatureAccelerated2dCanvas)
+      web_prefs.accelerated_2d_canvas_enabled = false;
     if (blacklist_flags & GpuFeatureFlags::kGpuFeatureMultisampling)
       web_prefs.gl_multisampling_enabled = false;
   }
 
   web_prefs.uses_universal_detector =
       prefs->GetBoolean(prefs::kWebKitUsesUniversalDetector);
   web_prefs.text_areas_are_resizable =
       prefs->GetBoolean(prefs::kWebKitTextAreasAreResizable);
   web_prefs.hyperlink_auditing_enabled =
       prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
@@ skipping 28 matching lines @@
   DictionaryValue* inspector_settings = update.Get();
   inspector_settings->SetWithoutPathExpansion(key,
                                               Value::CreateStringValue(value));
 }
 
 void RenderViewHostDelegateHelper::ClearInspectorSettings(
     content::BrowserContext* browser_context) {
   Profile::FromBrowserContext(browser_context)->GetPrefs()->
       ClearPref(prefs::kWebKitInspectorSettings);
 }