chromium/components/sync/service/glue/sync_engine_impl.h

// Copyright 2013 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_SERVICE_GLUE_SYNC_ENGINE_IMPL_H_
#define COMPONENTS_SYNC_SERVICE_GLUE_SYNC_ENGINE_IMPL_H_

#include <memory>
#include <string>
#include <vector>

#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "components/sync/base/data_type.h"
#include "components/sync/engine/connection_status.h"
#include "components/sync/engine/cycle/sync_cycle_snapshot.h"
#include "components/sync/engine/data_type_configurer.h"
#include "components/sync/engine/sync_credentials.h"
#include "components/sync/engine/sync_engine.h"
#include "components/sync/engine/sync_status.h"
#include "components/sync/invalidations/fcm_registration_token_observer.h"
#include "components/sync/invalidations/invalidations_listener.h"

namespace syncer {

class ActiveDevicesProvider;
class DataTypeConnector;
class ProtocolEvent;
class SyncEngineBackend;
class SyncInvalidationsService;
struct SyncProtocolError;
class SyncTransportDataPrefs;

// The only real implementation of the SyncEngine. See that interface's
// definition for documentation of public methods.
// Lives on the UI thread, and handles task-posting to SyncEngineBackend on
// the sync sequence as necessary.
class SyncEngineImpl : public SyncEngine,
                       public InvalidationsListener,
                       public FCMRegistrationTokenObserver { … };

}  // namespace syncer

#endif  // COMPONENTS_SYNC_SERVICE_GLUE_SYNC_ENGINE_IMPL_H_