Add layout test for reply property of notificationclick event

content/shell/browser/layout_test/layout_test_notification_manager.cc

Index: content/shell/browser/layout_test/layout_test_notification_manager.cc
diff --git a/content/shell/browser/layout_test/layout_test_notification_manager.cc b/content/shell/browser/layout_test/layout_test_notification_manager.cc
index 81ec335d07e238aa96dc52fe69f366f5465f24c8..b1c8aaef082f14fc02e744b8dbb952dfb128b3bb 100644
--- a/content/shell/browser/layout_test/layout_test_notification_manager.cc
+++ b/content/shell/browser/layout_test/layout_test_notification_manager.cc
@@ -94,7 +94,8 @@ bool LayoutTestNotificationManager::GetDisplayedPersistentNotifications(
 }
 
 void LayoutTestNotificationManager::SimulateClick(const std::string& title,
-                                                  int action_index) {
+                                                  int action_index,
+                                                  const std::string& reply) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   const auto notification_id_iter = notification_id_map_.find(title);
@@ -112,10 +113,11 @@ void LayoutTestNotificationManager::SimulateClick(const std::string& title,
 
     const PersistentNotification& notification = persistent_iter->second;
     content::NotificationEventDispatcher::GetInstance()
-        ->DispatchNotificationClickEvent(notification.browser_context,
-                                         notification_id, notification.origin,
-                                         action_index, base::NullableString16(),
-                                         base::Bind(&OnEventDispatchComplete));
+        ->DispatchNotificationClickEvent(
+            notification.browser_context, notification_id, notification.origin,
+            action_index, base::NullableString16(base::UTF8ToUTF16(reply),
+                                                 false /* is_null */),
+            base::Bind(&OnEventDispatchComplete));
   } else if (non_persistent_iter != non_persistent_notifications_.end()) {
     DCHECK_EQ(action_index, -1) << "Action buttons are only supported for "
                                    "persistent notifications";