Act on the incognito enabled policy change and set the menu accordingly.

chrome/browser/ui/browser.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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 242 matching lines @@
   if (local_state) {
     local_pref_registrar_.Init(local_state);
     local_pref_registrar_.Add(prefs::kPrintingEnabled, this);
     local_pref_registrar_.Add(prefs::kAllowFileSelectionDialogs, this);
   }
 
   profile_pref_registrar_.Init(profile_->GetPrefs());
   profile_pref_registrar_.Add(prefs::kDevToolsDisabled, this);
   profile_pref_registrar_.Add(prefs::kEditBookmarksEnabled, this);
   profile_pref_registrar_.Add(prefs::kInstantEnabled, this);
+  profile_pref_registrar_.Add(prefs::kIncognitoEnabled, this);
 
   InitCommandState();
   BrowserList::AddBrowser(this);
 
   // NOTE: These prefs all need to be explicitly destroyed in the destructor
   // or you'll get a nasty surprise when you run the incognito tests.
   encoding_auto_detect_.Init(prefs::kWebKitUsesUniversalDetector,
                              profile_->GetPrefs(), NULL);
   use_vertical_tabs_.Init(prefs::kUseVerticalTabs, profile_->GetPrefs(), this);
   use_compact_navigation_bar_.Init(prefs::kUseCompactNavigationBar,
@@ skipping 3400 matching lines @@
       } else if (pref_name == prefs::kInstantEnabled) {
         if (!InstantController::IsEnabled(profile())) {
           if (instant()) {
             instant()->DestroyPreviewContents();
             instant_.reset();
             instant_unload_handler_.reset();
           }
         } else {
           CreateInstantIfNecessary();
         }
+      } else if (pref_name == prefs::kIncognitoEnabled) {
+        command_updater_.UpdateCommandEnabled(
+            IDC_NEW_INCOGNITO_WINDOW,
+            profile_->GetPrefs()->GetBoolean(prefs::kIncognitoEnabled));
       } else if (pref_name == prefs::kDevToolsDisabled) {
         UpdateCommandsForDevTools();
         if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
           g_browser_process->devtools_manager()->CloseAllClientHosts();
       } else if (pref_name == prefs::kEditBookmarksEnabled) {
         UpdateCommandsForBookmarkEditing();
       } else if (pref_name == prefs::kAllowFileSelectionDialogs) {
         UpdateSaveAsState(GetContentRestrictionsForSelectedTab());
         UpdateOpenFileState();
       } else {
@@ skipping 1002 matching lines @@
   TabContents* current_tab = GetSelectedTabContents();
   if (current_tab) {
     content_restrictions = current_tab->content_restrictions();
     NavigationEntry* active_entry = current_tab->controller().GetActiveEntry();
     // See comment in UpdateCommandsForTabState about why we call url().
     if (!SavePackage::IsSavableURL(active_entry ? active_entry->url() : GURL()))
       content_restrictions |= CONTENT_RESTRICTION_SAVE;
   }
   return content_restrictions;
 }