Fix some JS style nits.

components/chrome_apps/webstore_widget/cws_widget/cws_webview_client.js

 // Copyright 2013 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.
 
 /**
  * @param {WebView} webView Web View tag.
  * @param {number} width Width of the CWS widget.
  * @param {number} height Height of the CWS widget.
  * @param {string} url Share Url for an entry.
  * @param {string} target Target (scheme + host + port) of the widget.
@@ skipping 183 matching lines @@
 };
 
 /**
  * Send the 'initialize' message to the widget.
  * @private
  */
 CWSContainerClient.prototype.postInitializeMessage_ = function() {
   new Promise(function(fulfill, reject) {
     this.delegate_.getInstalledItems(
         /**
-         * @param {?Array.<!string>} items Installed items.
+         * @param {?Array<!string>} items Installed items.
          *     Null on error.
          */
         function(items) {
           if (!items) {
             reject('Failed to retrive installed items.');
             return;
           }
           fulfill(items);
     })
   }.bind(this)).then(
@@ skipping 59 matching lines @@
       'loadabort', this.onLoadAbortBound_);
   this.webView_.stop();
 };
 
 /**
  * Cleans the dialog by removing all handlers.
  */
 CWSContainerClient.prototype.dispose = function() {
   this.abort();
 };