Add layout tests for ServiceWorker's notificationclose event.

content/shell/browser/layout_test/layout_test_notification_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/browser/layout_test/layout_test_notification_manager.h"
 
 #include "base/guid.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/desktop_notification_delegate.h"
@@ skipping 116 matching lines @@
   const PersistentNotification& notification = persistent_iterator->second;
   content::NotificationEventDispatcher::GetInstance()
       ->DispatchNotificationClickEvent(
           notification.browser_context,
           notification.persistent_id,
           notification.origin,
           action_index,
           base::Bind(&OnEventDispatchComplete));
 }
 
+void LayoutTestNotificationManager::SimulateClose(const std::string& title,
+                                                  bool by_user) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  const auto& persistent_iterator = persistent_notifications_.find(title);
+  if (persistent_iterator == persistent_notifications_.end())
+    return;
+
+  const PersistentNotification& notification = persistent_iterator->second;
+  content::NotificationEventDispatcher::GetInstance()
+      ->DispatchNotificationCloseEvent(
+          notification.browser_context,
+          notification.persistent_id,
+          notification.origin,
+          by_user,
+          base::Bind(&OnEventDispatchComplete));
+}
+
 blink::WebNotificationPermission
 LayoutTestNotificationManager::CheckPermissionOnUIThread(
     BrowserContext* browser_context,
     const GURL& origin,
     int render_process_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return CheckPermission(origin);
 }
 
 blink::WebNotificationPermission
@@ skipping 49 matching lines @@
 LayoutTestNotificationManager::CheckPermission(const GURL& origin) {
   return ToWebNotificationPermission(LayoutTestContentBrowserClient::Get()
       ->GetLayoutTestBrowserContext()
       ->GetLayoutTestPermissionManager()
       ->GetPermissionStatus(PermissionType::NOTIFICATIONS,
                             origin,
                             origin));
 }
 
 }  // namespace content