chromium/components/sync/invalidations/sync_invalidations_service.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SYNC_INVALIDATIONS_SYNC_INVALIDATIONS_SERVICE_H_
#define COMPONENTS_SYNC_INVALIDATIONS_SYNC_INVALIDATIONS_SERVICE_H_

#include <optional>
#include <string>

#include "base/functional/callback.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/sync/base/data_type.h"

namespace syncer {
class FCMRegistrationTokenObserver;
class InvalidationsListener;
class InterestedDataTypesHandler;

// Service which is used to register with FCM. It is used to obtain an FCM token
// which is used to send invalidations from the server. The service also
// provides incoming invalidations handling and an interface to subscribe to
// invalidations. To subscribe for invalidations a new InvalidationsListener
// should be added.
class SyncInvalidationsService : public KeyedService { … };

}  // namespace syncer

#endif  // COMPONENTS_SYNC_INVALIDATIONS_SYNC_INVALIDATIONS_SERVICE_H_