MD User manager: Migrate from PaperDialogBehavior to cr-dialog.

chrome/test/data/webui/md_user_manager/control_bar_tests.js

Index: chrome/test/data/webui/md_user_manager/control_bar_tests.js
diff --git a/chrome/test/data/webui/md_user_manager/control_bar_tests.js b/chrome/test/data/webui/md_user_manager/control_bar_tests.js
index edb55273e76c662eb01521db9c9d026f4dd9420a..46950c63d9bb18f9b6ae2de88ed0b7cbc3bedc2c 100644
--- a/chrome/test/data/webui/md_user_manager/control_bar_tests.js
+++ b/chrome/test/data/webui/md_user_manager/control_bar_tests.js
@@ -82,6 +82,9 @@ cr.define('user_manager.control_bar_tests', function() {
 
       teardown(function(done) {
         controlBarElement.remove();
+        if (errorDialogElement.$.dialog.open)
+          errorDialogElement.$.dialog.close();
+
         // Allow asynchronous tasks to finish.
         setTimeout(done);
       });
@@ -95,7 +98,7 @@ cr.define('user_manager.control_bar_tests', function() {
           Polymer.dom.flush();
 
           // The dialog is visible.
-          assertTrue(errorDialogElement.$.dialog.opened);
+          assertTrue(errorDialogElement.$.dialog.open);
         });
       });
 
@@ -108,7 +111,7 @@ cr.define('user_manager.control_bar_tests', function() {
           Polymer.dom.flush();
 
           // The error dialog is visible.
-          assertTrue(errorDialogElement.$.dialog.opened);
+          assertTrue(errorDialogElement.$.dialog.open);
         });
       });