build: move zone.js to angular repo (#30962)

PR Close #30962

packages/zone.js/test/browser/Notification.spec.ts

@@ -0,0 +1,26 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {zoneSymbol} from '../../lib/common/utils';
+import {ifEnvSupports} from '../test-util';
+declare const window: any;
+
+function notificationSupport() {
+  const desc = window['Notification'] &&
+      Object.getOwnPropertyDescriptor(window['Notification'].prototype, 'onerror');
+  return window['Notification'] && window['Notification'].prototype && desc && desc.configurable;
+}
+
+(<any>notificationSupport).message = 'Notification Support';
+
+describe('Notification API', ifEnvSupports(notificationSupport, function() {
+           it('Notification API should be patched by Zone', () => {
+             const Notification = window['Notification'];
+             expect(Notification.prototype[zoneSymbol('addEventListener')]).toBeTruthy();
+           });
+         }));