Made small refactoring of OobeUI.

chrome/browser/resources/chromeos/login/login_common.js

 // Copyright 2013 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 Common OOBE controller methods.
  */
 
 <include src="screen.js"></include>
 <include src="../user_images_grid.js"></include>
@@ skipping 59 matching lines @@
    */
   Oobe.showVersion = function(show) {
     Oobe.getInstance().showVersion(show);
   };
 
   /**
    * Update body class to switch between OOBE UI and Login UI.
    */
   Oobe.showOobeUI = function(showOobe) {
     if (showOobe) {
-      document.body.classList.remove('login-display');
+      document.body.classList.add('oobe-display');
     } else {
-      document.body.classList.add('login-display');
+      document.body.classList.remove('oobe-display');
       Oobe.getInstance().prepareForLoginDisplay_();
     }
 
     // Don't show header bar for OOBE.
     Oobe.getInstance().headerHidden = showOobe;
   };
 
   /**
    * Enables keyboard driven flow.
    */
@@ skipping 204 matching lines @@
   cr.ui.login.ResourceLoader.loadAssets(SCREEN_OOBE_ENROLLMENT, function() {
     // This screen is async-loaded so we manually trigger i18n processing.
     i18nTemplate.process($('oauth-enrollment'), loadTimeData);
     // Delayed binding since this isn't defined yet.
     login.OAuthEnrollmentScreen.register();
   });
 
   // Delayed binding since this isn't defined yet.
   cr.ui.Oobe.initialize();
 });