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

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

Index: chrome/test/data/webui/md_user_manager/import_supervised_user_tests.js
diff --git a/chrome/test/data/webui/md_user_manager/import_supervised_user_tests.js b/chrome/test/data/webui/md_user_manager/import_supervised_user_tests.js
index dc6b3c303ab98281cfeec2c9c0fe88af74e7f686..8e21ecc616a0429bf6505eada6d1f22dfd2a3f45 100644
--- a/chrome/test/data/webui/md_user_manager/import_supervised_user_tests.js
+++ b/chrome/test/data/webui/md_user_manager/import_supervised_user_tests.js
@@ -32,13 +32,13 @@ cr.define('user_manager.import_supervised_user_tests', function() {
 
       test('Dialog does not show if no signed-in user is provided', function() {
         // The dialog is initially not visible.
-        assertFalse(importElement.$.dialog.opened);
+        assertFalse(importElement.$.dialog.open);
 
         importElement.show(undefined, []);
         Polymer.dom.flush();
 
         // The dialog is still not visible.
-        assertFalse(importElement.$.dialog.opened);
+        assertFalse(importElement.$.dialog.open);
       });
 
       test('Can import supervised user', function() {
@@ -61,20 +61,20 @@ cr.define('user_manager.import_supervised_user_tests', function() {
                 event.detail.supervisedUser.name == 'supervised user 2') {
               Polymer.dom.flush();
               // The dialog is no longer visible.
-              assertFalse(importElement.$.dialog.opened);
+              assertFalse(importElement.$.dialog.open);
 
               resolve();
             }
           });
 
           // The dialog is initially not visible.
-          assertFalse(importElement.$.dialog.opened);
+          assertFalse(importElement.$.dialog.open);
 
           importElement.show(signedInUser, supervisedUsers);
           Polymer.dom.flush();
 
           // The dialog becomes visible.
-          assertTrue(importElement.$.dialog.opened);
+          assertTrue(importElement.$.dialog.open);
 
           // The correct message is displayed.
           assertEquals(loadTimeData.getString('supervisedUserImportText'),