Compile print_preview, part 3: reduce down to 185 errors

chrome/browser/resources/print_preview/search/destination_list_item.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.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Component that renders a destination item in a destination list.
    * @param {!cr.EventTarget} eventTarget Event target to dispatch selection
    *     events to.
    * @param {!print_preview.Destination} destination Destination data object to
    *     render.
-   * @param {RegExp} query Active filter query.
+   * @param {RegExp=} opt_query Active filter query.
    * @constructor
    * @extends {print_preview.Component}
    */
-  function DestinationListItem(eventTarget, destination, query) {
+  function DestinationListItem(eventTarget, destination, opt_query) {
     print_preview.Component.call(this);
 
     /**
      * Event target to dispatch selection events to.
      * @type {!cr.EventTarget}
      * @private
      */
     this.eventTarget_ = eventTarget;
 
     /**
      * Destination that the list item renders.
      * @type {!print_preview.Destination}
      * @private
      */
     this.destination_ = destination;
 
     /**
      * Active filter query text.
-     * @type {RegExp}
+     * @type {(RegExp|undefined)}
      * @private
      */
-    this.query_ = query;
+    this.query_ = opt_query;

[Aleksey Shlyapnikov, 2014/09/22 22:00:40]

Can we have it this way:
@type {RegExp}
and
this.query_ = opt_query || null;

[Vitaly Pavlenko, 2014/09/22 22:33:11]

Done, with {?RegExp}.

 
     /**
      * FedEx terms-of-service widget or {@code null} if this list item does not
      * render the FedEx Office print destination.
      * @type {print_preview.FedexTos}
      * @private
      */
     this.fedexTos_ = null;
   };
 
@@ skipping 164 matching lines @@
       promoClickedEvent.destination = this.destination_;
       this.eventTarget_.dispatchEvent(promoClickedEvent);
     }
   };
 
   // Export
   return {
     DestinationListItem: DestinationListItem
   };
 });