Hide/Disable several (meaningless) options in Settings uber-page for Guest.

chrome/browser/resources/options2/advanced_options.js

 // 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.
 
 cr.define('options', function() {
 
   var OptionsPage = options.OptionsPage;
 
   //
   // AdvancedOptions class
@@ skipping 16 matching lines @@
     initializePage: function() {
       // Call base class implementation to starts preference initialization.
       OptionsPage.prototype.initializePage.call(this);
 
       $('advanced-section-back-button').onclick =
           OptionsPage.navigateToPage.bind(OptionsPage, this.parentPage.name);
 
       // Date and time section (CrOS only).
       if (cr.isChromeOS && AccountsOptions.loggedInAsGuest()) {
         // Disable time-related settings if we're not logged in as a real user.
-        $('timezone-select').disabled = true;
-        $('use-24hour-clock').disabled = true;
+        AccountsOptions.disableElementsForGuest($('timezone-select'));
+        AccountsOptions.disableElementsForGuest($('use-24hour-clock'));
       }
 
       // Privacy section.
       $('privacyContentSettingsButton').onclick = function(event) {
         OptionsPage.navigateToPage('content');
         OptionsPage.showTab($('cookies-nav-tab'));
         chrome.send('coreOptionsUserMetricsAction',
             ['Options_ContentSettings']);
       };
       $('privacyClearDataButton').onclick = function(event) {
         OptionsPage.navigateToPage('clearBrowserData');
         chrome.send('coreOptionsUserMetricsAction', ['Options_ClearData']);
       };
       // 'metricsReportingEnabled' element is only present on Chrome branded
       // builds.
       if ($('metricsReportingEnabled')) {
         $('metricsReportingEnabled').onclick = function(event) {
           chrome.send('metricsReportingCheckboxAction',
               [String(event.target.checked)]);
         };
       }
+      if (cr.isChromeOS && AccountsOptions.loggedInAsGuest()) {
+        AccountsOptions.disableElementsForGuest($('searchSuggestEnabledGroup'));
+        AccountsOptions.disableElementsForGuest(
+            $('dnsPrefetchingEnabledGroup'));
+      }
 
       // Bluetooth (CrOS only).
       if (cr.isChromeOS) {
         options.system.bluetooth.BluetoothDeviceList.decorate(
             $('bluetooth-paired-devices-list'));
 
         $('bluetooth-add-device').onclick = function(event) {
           findBluetoothDevices_(true);
           OptionsPage.navigateToPage('bluetooth');
         };
@@ skipping 29 matching lines @@
         OptionsPage.navigateToPage('autofill');
         chrome.send('coreOptionsUserMetricsAction',
             ['Options_ShowAutofillSettings']);
       };
       $('manage-passwords').onclick = function(event) {
         OptionsPage.navigateToPage('passwords');
         OptionsPage.showTab($('passwords-nav-tab'));
         chrome.send('coreOptionsUserMetricsAction',
             ['Options_ShowPasswordManager']);
       };
-      if (AdvancedOptions.GuestModeActive()) {
+      if (cr.isChromeOS && AccountsOptions.loggedInAsGuest()) {
         // Disable and turn off Autofill in guest mode.
         var autofillEnabled = $('autofill-enabled');
         autofillEnabled.disabled = true;
         autofillEnabled.checked = false;
         cr.dispatchSimpleEvent(autofillEnabled, 'change');
         $('autofill-settings').disabled = true;
 
         // Disable and turn off Password Manager in guest mode.
         var passwordManagerEnabled = $('password-manager-enabled');
         passwordManagerEnabled.disabled = true;
         passwordManagerEnabled.checked = false;
         cr.dispatchSimpleEvent(passwordManagerEnabled, 'change');
         $('manage-passwords').disabled = true;
 
         // Hide the entire section on ChromeOS
-        if (cr.isChromeOS)
-          $('passwords-and-autofill-section').hidden = true;
+        AccountsOptions.disableElementsForGuest(
+            $('passwords-and-autofill-section'));
       }
+
       $('mac-passwords-warning').hidden =
           !(localStrings.getString('macPasswordsWarning'));
 
       // Network section.
       if (!cr.isChromeOS) {
         $('proxiesConfigureButton').onclick = function(event) {
           chrome.send('showNetworkProxySettings');
         };
       }
 
@@ skipping 115 matching lines @@
   };
 
   AdvancedOptions.SetMetricsReportingSettingVisibility = function(visible) {
     if (visible) {
       $('metricsReportingSetting').style.display = 'block';
     } else {
       $('metricsReportingSetting').style.display = 'none';
     }
   };
 
-  /**
-   * Returns whether the browser in guest mode. Some features are disabled or
-   * hidden in guest mode.
-   * @return {boolean} True if guest mode is currently active.
-   */
-  AdvancedOptions.GuestModeActive = function() {
-    return cr.commandLine && cr.commandLine.options['--bwsi'];
-  };
-
   // Set the font size selected item.
   AdvancedOptions.SetFontSize = function(font_size_value) {
     var selectCtl = $('defaultFontSize');
     for (var i = 0; i < selectCtl.options.length; i++) {
       if (selectCtl.options[i].value == font_size_value) {
         selectCtl.selectedIndex = i;
         if ($('Custom'))
           selectCtl.remove($('Custom').index);
         return;
       }
@@ skipping 173 matching lines @@
     if (device.pairing)
       BluetoothPairing.showDialog(device);
   };
 
   // Export
   return {
     AdvancedOptions: AdvancedOptions
   };
 
 });