[CUPS] MD Settings: Migrate from paper-dropdown-menu-light to native select

chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.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 'settings-cups-add-printer-dialog' includes multiple dialogs to
  * set up a new CUPS printer.
  * Subdialogs include:
  * - 'add-printer-discovery-dialog' is a dialog showing discovered printers on
  *   the network that are available for setup.
@@ skipping 147 matching lines @@
     this.$$('add-printer-dialog').close();
     this.fire('open-configuring-printer-dialog');
   },
 
   /** @private */
   onAddressChanged_: function() {
     // TODO(xdai): Check if the printer address exists and then show the
     // corresponding message after the API is ready.
     // The format of address is: ip-address-or-hostname:port-number.
   },
+
+  /**
+   * @param {!Event} event
+   * @private
+   */
+  onProtocolChange_: function(event) {
+    this.newPrinter.printerProtocol = event.target.value;
+  },
 });
 
 Polymer({
   is: 'add-printer-manufacturer-model-dialog',
 
   properties: {
     /** @type {!CupsPrinterInfo} */
     newPrinter: {
       type: Object,
       notify: true,
@@ skipping 279 matching lines @@
       return;
 
     if (this.previousDialog_ == AddPrinterDialogs.MANUFACTURER) {
       this.setupFailed = true;
     } else if (this.previousDialog_ == AddPrinterDialogs.MANUALLY) {
       this.switchDialog_(this.currentDialog_, AddPrinterDialogs.MANUFACTURER,
                          'showManufacturerDialog_');
     }
   },
 });