Prevented false error messages from user manager UI.

ui/login/account_picker/screen_account_picker.js

 // Copyright 2014 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 Account picker screen implementation.
  */
 
 login.createScreen('AccountPickerScreen', 'account-picker', function() {
   /**
    * Maximum number of offline login failures before online login.
    * @type {number}
    * @const
    */
   var MAX_LOGIN_ATTEMPTS_IN_POD = 3;
-  /**
-   * Whether to preselect the first pod automatically on login screen.
-   * @type {boolean}
-   * @const
-   */
-  var PRESELECT_FIRST_POD = true;
 
   return {
     EXTERNAL_API: [
       'loadUsers',
       'runAppForTesting',
       'setApps',
       'setShouldShowApps',
       'showAppError',
       'updateUserImage',
       'setCapsLockState',
@@ skipping 83 matching lines @@
     },
 
     /**
      * Event handler invoked when the page is shown and ready.
      */
     onShow: function() {
       if (!this.firstShown_) return;
       this.firstShown_ = false;
 
       // Ensure that login is actually visible.
-      window.webkitRequestAnimationFrame(function() {
+      window.requestAnimationFrame(function() {
         chrome.send('accountPickerReady');
         chrome.send('loginVisible', ['account-picker']);
       });
     },
 
     /**
      * Event handler that is invoked just before the frame is hidden.
      */
     onBeforeHide: function() {
       chrome.send('loginUIStateChanged', ['account-picker', false]);
@@ skipping 177 matching lines @@
      * Updates the list of available keyboard layouts for a public session pod.
      * @param {string} userID The user ID of the public session
      * @param {!Object} list List of available keyboard layouts
      */
     setPublicSessionKeyboardLayouts: function(userID, list) {
       $('pod-row').setPublicSessionKeyboardLayouts(userID, list);
     }
   };
 });