MD WebUI: Move settings' dialog-drawer element into a shared cr-element

chrome/test/data/webui/cr_elements/cr_elements_browsertest.js

 // Copyright 2016 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.
 
 /** @fileoverview Tests for shared Polymer elements. */
 
 /** @const {string} Path to source root. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 115 matching lines @@
       'chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html',
 
   extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat([
     'cr_action_menu_test.js',
   ]),
 };
 
 TEST_F('CrElementsActionMenuTest', 'All', function() {
   mocha.run();
 });
+
+function CrElementsDrawerTest() {}
+
+CrElementsDrawerTest.prototype = {
+  __proto__: CrElementsBrowserTest.prototype,
+
+  /** @override */
+  browsePreload: 'chrome://resources/cr_elements/cr_drawer/cr_drawer.html',
+
+  /** @override */
+  extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat(
+      ['cr_drawer_tests.js', ROOT_PATH + 'ui/webui/resources/js/util.js']),
+};
+
+TEST_F('CrElementsDrawerTest', 'All', function() {
+  mocha.run();
+});