ChromeOS: Implement Accessibility Options screen of material design OOBE.

chrome/browser/resources/chromeos/login/oobe.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.
 
 /**
  * @fileoverview Out of the box experience flow (OOBE).
  * This is the main code for the OOBE WebUI implementation.
  */
 
 <include src="login_shared.js">
@@ skipping 269 matching lines @@
     /**
      * Refreshes a11y menu state.
      * @param {!Object} data New dictionary with a11y features state.
      */
     refreshA11yInfo: function(data) {
       $('high-contrast').checked = data.highContrastEnabled;
       $('spoken-feedback').checked = data.spokenFeedbackEnabled;
       $('screen-magnifier').checked = data.screenMagnifierEnabled;
       $('large-cursor').checked = data.largeCursorEnabled;
       $('virtual-keyboard').checked = data.virtualKeyboardEnabled;
+
+      $('oobe-welcome-md').a11yStatus = data;
     },
 
     /**
      * Reloads content of the page (localized strings, options of the select
      * controls).
      * @param {!Object} data New dictionary with i18n values.
      */
     reloadContent: function(data) {
       // Reload global local strings, process DOM tree again.
       loadTimeData.overrideValues(data);
@@ skipping 29 matching lines @@
     /**
      * Updates localized content of the screens.
      * Should be executed on language change.
      */
     updateLocalizedContent: function() {
       // Buttons, headers and links.
       Oobe.getInstance().updateLocalizedContent_();
     }
   };
 });