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

chrome/browser/resources/settings/privacy_page/privacy_page.js

Index: chrome/browser/resources/settings/privacy_page/privacy_page.js
diff --git a/chrome/browser/resources/settings/privacy_page/privacy_page.js b/chrome/browser/resources/settings/privacy_page/privacy_page.js
index afdd7b4a2c66209cbf987691dffaf01574ae09d4..cebcccf9ef21ed909edd9e4dce7c233ab9094c81 100644
--- a/chrome/browser/resources/settings/privacy_page/privacy_page.js
+++ b/chrome/browser/resources/settings/privacy_page/privacy_page.js
@@ -38,17 +38,6 @@ Polymer({
     this.ContentSettingsTypes = settings.ContentSettingsTypes;
   },
 
-  /** @suppress {missingProperties} */
-  attached: function() {
-    settings.main.rendered.then(function() {
-      if (this.showClearBrowsingDataDialog_) {
-        var dialog = this.$$('settings-clear-browsing-data-dialog').$.dialog;
-        // TODO(dbeam): cast to a CrDialogElement when it compiles.
-        dialog.refit();
-      }
-    }.bind(this));
-  },
-
   /**
    * @return {boolean} Whether the Clear Browsing Data dialog should be showing.
    * @private
@@ -90,10 +79,7 @@ Polymer({
    * @param {!Event} event
    * @private
    */
-  onIronOverlayClosed_: function(event) {
-    if (Polymer.dom(event).rootTarget.tagName != 'CR-DIALOG')
-      return;
-
+  onDialogClosed_: function(event) {
     this.currentRoute = {
       page: 'advanced',
       section: 'privacy',