Delete deprecated synced notifications code

chrome/browser/notifications/sync_notifier/chrome_notifier_service.h

-// Copyright (c) 2012 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.
-
-#ifndef CHROME_BROWSER_NOTIFICATIONS_SYNC_NOTIFIER_CHROME_NOTIFIER_SERVICE_H_
-#define CHROME_BROWSER_NOTIFICATIONS_SYNC_NOTIFIER_CHROME_NOTIFIER_SERVICE_H_
-
-#include "base/memory/weak_ptr.h"
-#include "components/keyed_service/core/keyed_service.h"
-
-class Profile;
-class SyncedNotificationsShim;
-
-namespace extensions {
-struct Event;
-}
-
-namespace notifier {
-
-// The ChromeNotifierService acts as the bridge between sync and the JS
-// extension that implements the synced notifications processing code.
-// TODO(zea): consider making this a generic bridge for extension backed
-// datatypes.
-class ChromeNotifierService : public KeyedService {
- public:
-  explicit ChromeNotifierService(Profile* profile);
-  ~ChromeNotifierService() override;
-
-  // KeyedService implementation.
-  void Shutdown() override;
-
-  // Returns the SyncableService for syncer::SYNCED_NOTIFICATIONS and
-  // syncer::SYNCED_NOTIFICATION_APP_INFO
-  SyncedNotificationsShim* GetSyncedNotificationsShim();
-
- private:
-  // Helper method for firing JS events triggered by sync.
-  void FireSyncJSEvent(scoped_ptr<extensions::Event> event);
-
-  // Helper method for trigger synced notification refreshes.
-  void NotifyRefreshNeeded();
-
-  // The owning profile.
-  Profile* const profile_;
-
-  // Shim connecting the JS private api to sync. // TODO(zea): delete all other
-  // code.
-  scoped_ptr<SyncedNotificationsShim> synced_notifications_shim_;
-
-  base::WeakPtrFactory<ChromeNotifierService> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChromeNotifierService);
-};
-
-}  // namespace notifier
-
-#endif  // CHROME_BROWSER_NOTIFICATIONS_SYNC_NOTIFIER_CHROME_NOTIFIER_SERVICE_H_