Shorten Closure template notation from Array.<*> to Array<*>.

chrome/browser/ui/webui/options/startup_page_list_browsertest.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.
 
 /**
  * Fixture for startup pages WebUI tests.
  * @extends {testing.Test}
  * @constructor
  */
 function StartupPageListWebUITest() {}
@@ skipping 55 matching lines @@
 
 (function() {
 
 /**
  * A mock data transfer object for drag/drop events.
  * @constructor
  */
 function MockDataTransfer() {
   /**
    * The data this dataTransfer object knows about.
-   * @type {!Object.<string, string>}
+   * @type {!Object<string, string>}
    * @private
    */
   this.data_ = {};
 }
 
 /**
  * Installs a lazily created MockDataTransfer on event#dataTransfer.
  * @param {!Event} event An event to modify.
  */
 MockDataTransfer.install = function(event) {
@@ skipping 55 matching lines @@
   // TODO(dbeam): mock4js doesn't handle complex arguments well. Fix this.
   this.mockHandler.expects(once()).dragDropStartupPage([0, [1].join()]);
 
   this.getList().selectionModel.selectedIndex = 1;
   expectEquals(1, this.getList().selectionModel.selectedIndexes.length);
 
   this.getList().items[0].dispatchEvent(createMouseEvent('drop'));
 });
 
 }());