Add cr_scrollable_behavior tests

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 114 matching lines @@
   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();
 });
+

[Dan Beam, 2017/02/03 22:29:00]

nit: @constructor and associated copy pasta

[stevenjb, 2017/02/04 00:37:24]

This was missing form all of the tests in this file; added.

+function CrElementsScrollableBehaviorTest() {}
+
+CrElementsScrollableBehaviorTest.prototype = {
+  __proto__: CrElementsBrowserTest.prototype,
+
+  /** @override */
+  browsePreload: 'chrome://resources/cr_elements/cr_scrollable_behavior.html',
+
+  /** @override */
+  extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat([
+    'cr_scrollable_behavior_tests.js',
+  ]),
+};
+
+TEST_F('CrElementsScrollableBehaviorTest', 'All', function() {
+  mocha.run();
+});