WebUI: Add cr-policy-pref-indicator 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 156 matching lines @@
 
   /** @override */
   extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat([
     'cr_scrollable_behavior_tests.js',
   ]),
 };
 
 TEST_F('CrElementsScrollableBehaviorTest', 'All', function() {
   mocha.run();
 });
+
+function CrElementsPolicyPrefIndicatorTest() {}
+
+CrElementsPolicyPrefIndicatorTest.prototype = {
+  __proto__: CrElementsBrowserTest.prototype,
+
+  /** @override */
+  browsePreload:
+      'chrome://resources/cr_elements/policy/cr_policy_pref_indicator.html',
+
+  /** @override */
+  extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat([
+    'cr_policy_pref_indicator_tests.js',
+  ]),
+};
+
+TEST_F('CrElementsPolicyPrefIndicatorTest', 'All', function() {
+  mocha.run();
+});