Allow Caps Lock to be remapped [part 2 of 2]

chrome/browser/resources/options/chromeos/keyboard_overlay.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() {
 
   /**
    * Encapsulated handling of the keyboard overlay.
    * @constructor
    */
   function KeyboardOverlay() {
     options.SettingsDialog.call(this, 'keyboard-overlay',
         loadTimeData.getString('keyboardOverlayTitle'),
         'keyboard-overlay',
         $('keyboard-confirm'), $('keyboard-cancel'));
   }
 
   cr.addSingletonGetter(KeyboardOverlay);
 
   KeyboardOverlay.prototype = {
     __proto__: options.SettingsDialog.prototype,
+
+    /**
+     * Show/hide the caps lock remapping section.
+     * @private
+     */
+    showCapsLockOptions_: function(show) {
+      $('caps-lock-remapping-section').hidden = !show;
+    },
   };
 
+  // Forward public APIs to private implementations.
+  [
+    'showCapsLockOptions',
+  ].forEach(function(name) {
+    KeyboardOverlay[name] = function() {
+      var instance = KeyboardOverlay.getInstance();
+      return instance[name + '_'].apply(instance, arguments);
+    };
+  });
+
   // Export
   return {
     KeyboardOverlay: KeyboardOverlay
   };
 });