MD Settings: Fix Reset profile dialog scenario that causes a crash.

chrome/test/data/webui/settings/reset_page_test.js

Index: chrome/test/data/webui/settings/reset_page_test.js
diff --git a/chrome/test/data/webui/settings/reset_page_test.js b/chrome/test/data/webui/settings/reset_page_test.js
index ee4172f8f4004f3951de5c2e678471b1b23d22bb..00641cb9150836a5e2944ef86019a032d4de65cb 100644
--- a/chrome/test/data/webui/settings/reset_page_test.js
+++ b/chrome/test/data/webui/settings/reset_page_test.js
@@ -149,9 +149,9 @@ cr.define('settings_reset_page', function() {
 
         // Open reset profile dialog.
         MockInteractions.tap(resetPage.$.resetProfile);
+        Polymer.dom.flush();
         var dialog = resetPage.$$('settings-reset-profile-dialog');
         assertTrue(!!dialog);
-        assertTrue(dialog.$.dialog.open);
         var onDialogClosed = new Promise(
             function(resolve, reject) {
               dialog.addEventListener('close', function() {
@@ -162,6 +162,7 @@ cr.define('settings_reset_page', function() {
 
         return resetPageBrowserProxy.whenCalled(
               'onShowResetProfileDialog').then(function() {
+          assertTrue(dialog.$.dialog.open);
           closeDialogFn(dialog);
           return Promise.all([
             onDialogClosed,
@@ -189,6 +190,7 @@ cr.define('settings_reset_page', function() {
       test(TestNames.ResetProfileDialogAction, function() {
         // Open reset profile dialog.
         MockInteractions.tap(resetPage.$.resetProfile);
+        Polymer.dom.flush();
         var dialog = resetPage.$$('settings-reset-profile-dialog');
         assertTrue(!!dialog);
 
@@ -202,6 +204,7 @@ cr.define('settings_reset_page', function() {
               assertFalse(dialog.$.resetSpinner.active);
               MockInteractions.tap(dialog.$.reset);
               assertTrue(dialog.$.reset.disabled);
+              assertTrue(dialog.$.cancel.disabled);
               assertTrue(dialog.$.resetSpinner.active);
               return resetPageBrowserProxy.whenCalled(
                   'performResetProfileSettings');