Move handler processing to NotificationDisplayService.

chrome/browser/notifications/non_persistent_notification_handler.cc

 // Copyright 2016 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 "chrome/browser/notifications/non_persistent_notification_handler.h"
 
 #include "base/strings/nullable_string16.h"
 #include "chrome/browser/notifications/platform_notification_service_impl.h"
 #include "content/public/browser/notification_event_dispatcher.h"
 
 NonPersistentNotificationHandler::NonPersistentNotificationHandler() = default;
 NonPersistentNotificationHandler::~NonPersistentNotificationHandler() = default;
 
+void NonPersistentNotificationHandler::OnShow(
+    Profile* profile,
+    const std::string& notification_id) {
+  content::NotificationEventDispatcher::GetInstance()
+      ->DispatchNonPersistentShowEvent(notification_id);
+}
+
 void NonPersistentNotificationHandler::OnClose(
     Profile* profile,
     const std::string& origin,
     const std::string& notification_id,
     bool by_user) {
   content::NotificationEventDispatcher::GetInstance()
       ->DispatchNonPersistentCloseEvent(notification_id);
 }
 
 void NonPersistentNotificationHandler::OnClick(
     Profile* profile,
     const std::string& origin,
     const std::string& notification_id,
     int action_index,
     const base::NullableString16& reply) {
   DCHECK(reply.is_null());
 
   // Non persistent notifications don't allow buttons.
   // https://notifications.spec.whatwg.org/#create-a-notification
   DCHECK_EQ(-1, action_index);
 
   content::NotificationEventDispatcher::GetInstance()
       ->DispatchNonPersistentClickEvent(notification_id);
 }
 
 void NonPersistentNotificationHandler::OpenSettings(Profile* profile) {
   NotificationCommon::OpenNotificationSettings(profile);
 }