Update Chromoting to use /third_party/closure_compiler.

remoting/webapp/crd/js/app_launcher.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
  * AppLauncher is an interface that allows the client code to launch and close
  * the app without knowing the implementation difference between a v1 app and
  * a v2 app.
  *
@@ skipping 60 matching lines @@
   /**
    * @param {function(*=):void} resolve
    * @param {function(*=):void} reject
    */
   return new Promise(function(resolve, reject) {
     /** @param {chrome.Tab} tab The retrieved tab. */
     chrome.tabs.get(id, function(tab) {
       if (!tab) {
         reject(new Error(chrome.runtime.lastError.message));
       } else {
-        chrome.tabs.remove(tab.id, resolve);
+        chrome.tabs.remove(tab.id, /** @type {function(*=):void} */ (resolve));
       }
     });
   });
 };
 
 
 /**
  * @constructor
  * @implements {remoting.AppLauncher}
  */
@@ skipping 12 matching lines @@
    * @param {function(*=):void} resolve
    * @param {function(*=):void} reject
    */
   return new Promise(function(resolve, reject) {
     chrome.app.window.create(url, {
         'width': 800,
         'height': 600,
         'frame': 'none',
         'id': String(remoting.V2AppLauncher.nextWindowId_++)
       },
-      /** @param {AppWindow} appWindow */
+      /** @param {AppWindow=} appWindow */
       function(appWindow) {
         if (!appWindow) {
           reject(new Error(chrome.runtime.lastError.message));
         } else {
           resolve(appWindow.id);
         }
       });
   });
 };
 
 remoting.V2AppLauncher.prototype.close = function(id) {
   var appWindow = chrome.app.window.get(id);
   if (!appWindow) {
     return Promise.reject(new Error(chrome.runtime.lastError.message));
   }
   appWindow.close();
   return Promise.resolve();
 };