Update display after the passphrase input fields are reset.

chrome/browser/resources/options/managed_user_set_passphrase.js

 // Copyright (c) 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.
 
 cr.define('options', function() {
   /** @const */ var OptionsPage = options.OptionsPage;
 
   //////////////////////////////////////////////////////////////////////////////
   // ManagedUserSetPassphraseOverlay class:
 
   /**
    * Encapsulated handling of the Managed User Set Passphrase page.
    * @constructor
    */
   function ManagedUserSetPassphraseOverlay() {
     OptionsPage.call(
       this,
       'setPassphrase',
       loadTimeData.getString('setPassphraseTitle'),
       'managed-user-set-passphrase-overlay');
   }
 
   cr.addSingletonGetter(ManagedUserSetPassphraseOverlay);
 
   /** Closes the page and resets the passphrase fields */
   var closePage = function(container) {

[James Hawkins, 2013/03/07 18:40:54]

Please move this into the prototype so you don't have to getInstance().

[Adrian Kuegel, 2013/03/08 08:56:34]

Done.

     // Reseting the fields directly would lead to a flicker, so listen to
     // webkitTransitionEnd to clear them after that. Similar to how it is done
     // in setOverlayVisible_ in options_page.js.
     container.addEventListener('webkitTransitionEnd', function f(e) {
       if (e.target != e.currentTarget || e.propertyName != 'opacity')
         return;
       container.removeEventListener('webkitTransitionEnd', f);
 
       // Reset the fields.
       $('managed-user-passphrase').value = '';
       $('passphrase-confirm').value = '';
-      $('passphrase-mismatch').hidden = true;
+      ManagedUserSetPassphraseOverlay.getInstance().updateDisplay_();
     });
     OptionsPage.closeOverlay();
   };
 
   ManagedUserSetPassphraseOverlay.prototype = {
     __proto__: OptionsPage.prototype,
 
     /** @override */
     initializePage: function() {
       OptionsPage.prototype.initializePage.call(this);
@@ skipping 81 matching lines @@
     }
   };
 
   // Export
   return {
     ManagedUserSetPassphraseOverlay: ManagedUserSetPassphraseOverlay,
     ManagedUserSetPassphraseForTesting: ManagedUserSetPassphraseForTesting
   };
 
 });