Enables the user to select multiple languages for spellchecking (UI)

chrome/browser/resources/options/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.
 
 var AddLanguageOverlay = options.AddLanguageOverlay;
 var AlertOverlay = options.AlertOverlay;
 var AutofillEditAddressOverlay = options.AutofillEditAddressOverlay;
 var AutofillEditCreditCardOverlay = options.AutofillEditCreditCardOverlay;
 var AutofillOptions = options.AutofillOptions;
 var AutomaticSettingsResetBanner = options.AutomaticSettingsResetBanner;
@@ skipping 77 matching lines @@
   PageManager.registerOverlay(
       new ConfirmDialog(
           'doNotTrackConfirm',
           loadTimeData.getString('doNotTrackConfirmOverlayTabTitle'),
           'do-not-track-confirm-overlay',
           /** @type {HTMLButtonElement} */($('do-not-track-confirm-ok')),
           /** @type {HTMLButtonElement} */($('do-not-track-confirm-cancel')),
           $('do-not-track-enabled')['pref'],
           $('do-not-track-enabled')['metric']),
       BrowserOptions.getInstance());
-  // 'spelling-enabled-control' element is only present on Chrome branded
-  // builds.
-  if ($('spelling-enabled-control')) {
-    PageManager.registerOverlay(
-        new ConfirmDialog(
-            'spellingConfirm',
-            loadTimeData.getString('spellingConfirmOverlayTabTitle'),
-            'spelling-confirm-overlay',
-            /** @type {HTMLButtonElement} */($('spelling-confirm-ok')),
-            /** @type {HTMLButtonElement} */($('spelling-confirm-cancel')),
-            $('spelling-enabled-control')['pref'],
-            $('spelling-enabled-control')['metric']),
-        BrowserOptions.getInstance());
-  }
+  PageManager.registerOverlay(
+      new ConfirmDialog(
+          'spellingConfirm',
+          loadTimeData.getString('spellingConfirmOverlayTabTitle'),
+          'spelling-confirm-overlay',
+          /** @type {HTMLButtonElement} */($('spelling-confirm-ok')),
+          /** @type {HTMLButtonElement} */($('spelling-confirm-cancel')),
+          $('spelling-enabled-control')['pref'],
+          $('spelling-enabled-control')['metric']),
+      BrowserOptions.getInstance());
   PageManager.registerOverlay(new HotwordConfirmDialog(),
                               BrowserOptions.getInstance());
   PageManager.registerOverlay(ContentSettings.getInstance(),
                               BrowserOptions.getInstance(),
                               [$('privacyContentSettingsButton')]);
   PageManager.registerOverlay(ContentSettingsExceptionsArea.getInstance(),
                               ContentSettings.getInstance());
   PageManager.registerOverlay(CookiesView.getInstance(),
                               ContentSettings.getInstance(),
                               [$('privacyContentSettingsButton'),
@@ skipping 113 matching lines @@
 
   OptionsFocusManager.getInstance().initialize();
   Preferences.getInstance().initialize();
   ResetProfileSettingsBanner.getInstance().initialize();
   AutomaticSettingsResetBanner.getInstance().initialize();
   OptionsPage.initialize();
   PageManager.initialize(BrowserOptions.getInstance());
   PageManager.addObserver(new uber.PageManagerObserver());
   uber.onContentFrameLoaded();
 
+  // The spelling service should be unavailable when multilingual spellchecking
+  // is enabled so the option will not be shown.
+  if (loadTimeData.getBoolean('enableMultilingualSpellChecker')) {
+    $('spelling-enabled-container').hidden = true;
+  }
+
   var pageName = PageManager.getPageNameFromPath();
   // Still update history so that chrome://settings/nonexistant redirects
   // appropriately to chrome://settings/. If the URL matches, updateHistory_
   // will avoid the extra replaceState.
   var updateHistory = true;
   PageManager.showPageByName(pageName, updateHistory,
                              {replaceState: true, hash: location.hash});
 
   var subpagesNavTabs = document.querySelectorAll('.subpages-nav-tabs');
   for (var i = 0; i < subpagesNavTabs.length; i++) {
@@ skipping 19 matching lines @@
 };
 
 /**
  * Listener for the |popstate| event.
  * @param {Event} e The |popstate| event.
  */
 window.onpopstate = function(e) {
   var pageName = PageManager.getPageNameFromPath();
   PageManager.setState(pageName, location.hash, e.state);
 };