Make setting's protocol handler use cr-action-menu instead of paper-item.

chrome/test/data/webui/settings/cr_settings_browsertest.js

 // Copyright 2015 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 Runs the Polymer Settings tests. */
 
 /** @const {string} Path to source root. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 614 matching lines @@
 
   /** @override */
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'site_details_tests.js',
     'site_details_permission_tests.js',
     'site_list_tests.js',
     'site_settings_category_tests.js',
     'test_browser_proxy.js',
     'test_site_settings_prefs_browser_proxy.js',
     'zoom_levels_tests.js',
-    'usb_devices_tests.js'
+    'usb_devices_tests.js',
+    'protocol_handlers_tests.js'
   ]),
 };
 
 TEST_F('CrSettingsSiteSettingsTest', 'SiteSettings', function() {
   site_details.registerTests();
   site_details_permission.registerTests();
   site_list.registerTests();
   site_settings_category.registerTests();
   zoom_levels.registerTests();
   usb_devices.registerTests();
+  protocol_handlers.registerTests();
 
   mocha.run();
 });
 
 GEN('#if defined(OS_CHROMEOS)');
 /**
  * Test fixture for device-page.
  * @constructor
  * @extends {CrSettingsBrowserTest}
  */
@@ skipping 389 matching lines @@
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'date_time_page_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsDateTimePageTest', 'DateTimePageTest', function() {
   mocha.run();
 });
 
 GEN('#endif');