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

chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js

Index: chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
diff --git a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
index 43c2dee03bc70a9f72bec12ab5d099149503a5ff..e37061d5f96ca85d929108d2a11e2a61f8bc8107 100644
--- a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
+++ b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
@@ -165,6 +165,14 @@ Polymer({
     // 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({