[Media Router WebUI] Show issue's secondary action when 'dismiss'.

chrome/browser/resources/media_router/media_router_data.js

 // Copyright 2015 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.
 
 // Any strings used here will already be localized. Values such as
 // CastMode.type or IDs will be defined elsewhere and determined later.
 
 cr.exportPath('media_router');
 
 /**
@@ skipping 109 matching lines @@
    * @const {!media_router.CastMode}
    */
   var AUTO_CAST_MODE = new CastMode(media_router.CastModeType.AUTO,
       loadTimeData.getString('autoCastMode'), null);
 
   /**
    * @param {string} id The ID of this issue.
    * @param {string} title The issue title.
    * @param {string} message The issue message.
    * @param {number} defaultActionType The type of default action.
-   * @param {?number} secondaryActionType The type of optional action.
+   * @param {number|undefined} secondaryActionType The type of optional action.
    * @param {?string} routeId The route ID to which this issue
    *                  pertains. If not set, this is a global issue.
    * @param {boolean} isBlocking True if this issue blocks other UI.
    * @param {?number} helpPageId The numeric help center ID.
    * @constructor
    * @struct
    */
   var Issue = function(id, title, message, defaultActionType,
                        secondaryActionType, routeId, isBlocking,
                        helpPageId) {
     /** @type {string} */
     this.id = id;
 
     /** @type {string} */
     this.title = title;
 
     /** @type {string} */
     this.message = message;
 
     /** @type {number} */
     this.defaultActionType = defaultActionType;
 
-    /** @type {?number} */
+    /** @type {number|undefined} */
     this.secondaryActionType = secondaryActionType;
 
     /** @type {?string} */
     this.routeId = routeId;
 
     /** @type {boolean} */
     this.isBlocking = isBlocking;
 
     /** @type {?number} */
     this.helpPageId = helpPageId;
@@ skipping 93 matching lines @@
 
   return {
     AUTO_CAST_MODE: AUTO_CAST_MODE,
     CastMode: CastMode,
     Issue: Issue,
     Route: Route,
     Sink: Sink,
     TabInfo: TabInfo,
   };
 });