Nuke NotificationUIManager from PlatformNotificationServiceImpl

chrome/browser/notifications/notification_display_service_factory.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 "base/memory/singleton.h"
+#include "chrome/browser/notifications/notification_display_service_factory.h"
+#include "chrome/browser/profiles/profile.h"
+
+// static
+NotificationDisplayService* NotificationDisplayServiceFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<NotificationDisplayService*>(
+      GetInstance()->GetServiceForBrowserContext(profile, true));
+}
+
+// static
+NotificationDisplayServiceFactory*
+NotificationDisplayServiceFactory::GetInstance() {
+  return base::Singleton<NotificationDisplayServiceFactory>::get();
+}
+
+KeyedService* NotificationDisplayServiceFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return NotificationDisplayService::Create(
+      Profile::FromBrowserContext(context));
+}