Add a reload button to host list.

remoting/webapp/remoting.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.
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /** @type {remoting.HostSession} */ remoting.hostSession = null;
@@ skipping 56 matching lines @@
     }
     remoting.identity = remoting.oauth2;
   }
   remoting.stats = new remoting.ConnectionStats(
       document.getElementById('statistics'));
   remoting.formatIq = new remoting.FormatIq();
   remoting.hostList = new remoting.HostList(
       document.getElementById('host-list'),
       document.getElementById('host-list-empty'),
       document.getElementById('host-list-error-message'),
-      document.getElementById('host-list-refresh-failed-button'));
+      document.getElementById('host-list-refresh-failed-button'),
+      document.getElementById('host-list-loading-indicator'));
   remoting.toolbar = new remoting.Toolbar(
       document.getElementById('session-toolbar'));
   remoting.clipboard = new remoting.Clipboard();
   var sandbox = /** @type {HTMLIFrameElement} */
       document.getElementById('wcs-sandbox');
   remoting.wcsSandbox = new remoting.WcsSandboxContainer(sandbox.contentWindow);
 
   /** @param {remoting.Error} error */
   var onGetEmailError = function(error) {
     // No need to show the error message for NOT_AUTHENTICATED
@@ skipping 372 matching lines @@
 /**
  * Generate a nonce, to be used as an xsrf protection token.
  *
  * @return {string} A URL-Safe Base64-encoded 128-bit random value. */
 remoting.generateXsrfToken = function() {
   var random = new Uint8Array(16);
   window.crypto.getRandomValues(random);
   var base64Token = window.btoa(String.fromCharCode.apply(null, random));
   return base64Token.replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '');
 };