Converted remoting.Error from an enum to a class

remoting/webapp/browser_test/mock_oauth2_api.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
  * Mock implementation of remoting.OAuth2Api
  */
 
 'use strict';
@@ skipping 14 matching lines @@
 
   /**
    * @type {string}
    * @private
    */
   this.fullName_ = 'Fake User, Esq.';
 };
 
 /**
  * @param {function(string, number): void} onDone
- * @param {function(remoting.Error):void} onError
+ * @param {function(!remoting.Error):void} onError
  * @param {string} clientId
  * @param {string} clientSecret
  * @param {string} refreshToken
  * @return {void} Nothing.
  */
 remoting.MockOAuth2Api.prototype.refreshAccessToken = function(
     onDone, onError, clientId, clientSecret, refreshToken) {
   window.setTimeout(
       onDone.bind(null, remoting.MockIdentity.AccessToken.VALID, 60 * 60),
       0);
 };
 
 /**
  * @param {function(string, string, number): void} onDone
- * @param {function(remoting.Error):void} onError
+ * @param {function(!remoting.Error):void} onError
  * @param {string} clientId
  * @param {string} clientSecret
  * @param {string} code
  * @param {string} redirectUri
  * @return {void} Nothing.
  */
 remoting.MockOAuth2Api.prototype.exchangeCodeForTokens = function(
     onDone, onError, clientId, clientSecret, code, redirectUri) {
   window.setTimeout(
       onDone.bind(null, '', remoting.MockIdentity.AccessToken.VALID, 60 * 60),
       0);
 };
 
 /**
  * @param {function(string,string)} onDone
- * @param {function(remoting.Error)} onError
+ * @param {function(!remoting.Error)} onError
  * @param {string} token
  */
 remoting.MockOAuth2Api.prototype.getEmail = function(onDone, onError, token) {
   remoting.MockIdentity.validateTokenAndCall(
       token, onDone, onError, [this.email_]);
 };
 
 /**
  * @param {function(string,string)} onDone
- * @param {function(remoting.Error)} onError
+ * @param {function(!remoting.Error)} onError
  * @param {string} token
  */
 remoting.MockOAuth2Api.prototype.getUserInfo =
     function(onDone, onError, token) {
   remoting.MockIdentity.validateTokenAndCall(
       token, onDone, onError, [this.email_, this.fullName_]);
 };
 
 
 /**
  * @param {boolean} active
  */
 remoting.MockOAuth2Api.setActive = function(active) {
   remoting.oauth2Api = active ? new remoting.MockOAuth2Api()
                               : new remoting.OAuth2ApiImpl();
 };