Added a switch to enable a unified text checker and asynchronous

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 487 matching lines @@
     if (profile->GetUserStyleSheetWatcher()) {
       web_prefs.user_style_sheet_enabled = true;
       web_prefs.user_style_sheet_location =
           profile->GetUserStyleSheetWatcher()->user_style_sheet();
     } else {
       web_prefs.user_style_sheet_enabled = false;
     }
 
     web_prefs.visual_word_movement_enabled =
         command_line.HasSwitch(switches::kEnableVisualWordMovement);
+
+    web_prefs.unified_textchecker_enabled =

[darin (slow to review), 2011/11/21 19:04:19]

if both of these fields in WebPreferences are set to the exact same value, then
why do we need both?  do you have another use case in mind where they might
sometimes be different?

+        command_line.HasSwitch(switches::kExperimentalSpellcheckerFeatures);
+    web_prefs.asynchronous_spell_checking_enabled =
+        command_line.HasSwitch(switches::kExperimentalSpellcheckerFeatures);
   }
 
   {  // 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;
@@ skipping 63 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);
 }