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

chrome/browser/resources/file_manager/js/file_manager.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.
 
 // This variable is checked in SelectFileDialogExtensionBrowserTest.
 var JSErrorCount = 0;
 
 /**
  * Count uncaught exceptions.
  */
 window.onerror = function() { JSErrorCount++ };
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
  * dialogs, as well as the full screen file manager application (though the
  * latter is not yet implemented).
  *
- * @constructor
  * @param {HTMLElement} dialogDom The DOM node containing the prototypical
  *     dialog UI.
+ * @constructor
  */
 function FileManager(dialogDom) {
   this.dialogDom_ = dialogDom;
   this.filesystem_ = null;
 
   if (window.appState) {
     this.params_ = window.appState.params || {};
     this.defaultPath = window.appState.defaultPath;
     util.saveAppState();
   } else {
@@ skipping 2904 matching lines @@
     return this.directoryModel_.getFileList();
   };
 
   /**
    * @return {cr.ui.List} Current list object.
    */
   FileManager.prototype.getCurrentList = function() {
     return this.currentList_;
   };
 })();