MD Settings: convert paper-icon-button to paper-icon-button-light.

chrome/test/data/webui/settings/protocol_handlers_tests.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 Suite of tests for protocol_handlers. */
 suite('ProtocolHandlers', function() {
   /**
    * A dummy protocol handler element created before each test.
    * @type {ProtocolHandlers}
    */
@@ skipping 98 matching lines @@
    * @param {string} button id of the button to test.
    * @param {string} handler name of browserProxy handler to react.
    * @return {!Promise}
    */
   function testButtonFlow(button, browserProxyHandler) {
     var menuButtons, functionButton, dialog;
 
     return initPage()
         .then(function() {
           // Initiating the elements
-          menuButtons = testElement.root.querySelectorAll('paper-icon-button');
+          menuButtons =
+              testElement.root.querySelectorAll('button.icon-more-vert');
           functionButton = testElement.$[button];
           dialog = testElement.$$('dialog[is=cr-action-menu]');
           assertEquals(3, menuButtons.length);
 
           // Test the button for the first protocol handler
           MockInteractions.tap(menuButtons[0]);
           assertTrue(dialog.open);
 
           MockInteractions.tap(functionButton);
 
@@ skipping 25 matching lines @@
   test('remove button works', function() {
     browserProxy.setProtocolHandlers(protocols);
     return testButtonFlow('removeButton', 'removeProtocolHandler');
   });
 
   test('default button works', function() {
     browserProxy.setProtocolHandlers(protocols);
     return testButtonFlow('defaultButton', 'setProtocolDefault');
   });
 });