Migrate <cr-dialog> from PaperDialogBehavior to native <dialog>.

chrome/browser/resources/settings/certificate_manager_page/certificate_manager_page.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 'settings-certificate-manager-page' is the settings page
  * containing SSL certificate settings.
  */
 Polymer({
   is: 'settings-certificate-manager-page',
@@ skipping 140 matching lines @@
    *
    * @param {string} dialogTagName The tag name of the dialog to be shown.
    * @param {string} domIfBooleanName The name of the boolean variable
    *     corresponding to the dialog.
    * @private
    */
   openDialog_: function(dialogTagName, domIfBooleanName) {
     this.set(domIfBooleanName, true);
     this.async(function() {
       var dialog = this.$$(dialogTagName);
-      dialog.addEventListener('iron-overlay-closed', function() {
+      dialog.addEventListener('close', function() {
         this.set(domIfBooleanName, false);
       }.bind(this));
     }.bind(this));
   },
 });