[Cleanup] Files.app: Misc style fixes in Javascript code.

chrome/browser/resources/file_manager/js/background.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.
 
 /**
  * Map of all currently open app window. The key is an app id.
  */
 var appWindows = {};
 
 /**
@@ skipping 81 matching lines @@
 
 /**
  * Wrapper for a singleton app window.
  *
  * In addition to the AppWindowWrapper requirements the app scripts should
  * have |reload| method that re-initializes the app based on a changed
  * |window.appState|.
  *
  * @param {string} url App window content url.
  * @param {object|function} options Options object or a function to return it.
- *
  * @constructor
  */
 function SingletonAppWindowWrapper(url, options) {
   AppWindowWrapper.call(this, url, url, options);
 }
 
 /**
  * Inherits from AppWindowWrapper.
  */
 SingletonAppWindowWrapper.prototype = { __proto__: AppWindowWrapper.prototype };
@@ skipping 208 matching lines @@
 function addExecuteHandler() {
   if (!chrome.fileBrowserHandler) {
     console.log('Running outside Chrome OS, loading mock API implementations.');
     util.loadScripts(['js/mock_chrome.js'], addExecuteHandler);
     return;
   }
   chrome.fileBrowserHandler.onExecute.addListener(executeFileBrowserTask);
 }
 
 addExecuteHandler();