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// 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_BROWSER_SYNC_ACTIVE_DEVICES_PROVIDER_IMPL_H_
#define COMPONENTS_BROWSER_SYNC_ACTIVE_DEVICES_PROVIDER_IMPL_H_
#include <memory>
#include <string>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "base/sequence_checker.h"
#include "base/time/clock.h"
#include "components/sync/service/active_devices_provider.h"
#include "components/sync_device_info/device_info_tracker.h"
namespace browser_sync {
class ActiveDevicesProviderImpl : public syncer::ActiveDevicesProvider,
public syncer::DeviceInfoTracker::Observer {
public:
ActiveDevicesProviderImpl(syncer::DeviceInfoTracker* device_info_tracker,
base::Clock* clock);
ActiveDevicesProviderImpl(const ActiveDevicesProviderImpl&) = delete;
ActiveDevicesProviderImpl& operator=(const ActiveDevicesProviderImpl&) =
delete;
~ActiveDevicesProviderImpl() override;
// syncer::ActiveDevicesProvider implementation.
syncer::ActiveDevicesInvalidationInfo CalculateInvalidationInfo(
const std::string& local_cache_guid) const override;
void SetActiveDevicesChangedCallback(
ActiveDevicesChangedCallback callback) override;
// syncer::DeviceInfoTracker::Observer implementation.
void OnDeviceInfoChange() override;
private:
std::vector<const syncer::DeviceInfo*> GetActiveDevicesSortedByUpdateTime()
const;
const raw_ptr<syncer::DeviceInfoTracker> device_info_tracker_;
const raw_ptr<const base::Clock> clock_;
ActiveDevicesChangedCallback callback_;
base::ScopedObservation<syncer::DeviceInfoTracker,
syncer::DeviceInfoTracker::Observer>
device_info_tracker_observation_{this};
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace browser_sync
#endif // COMPONENTS_BROWSER_SYNC_ACTIVE_DEVICES_PROVIDER_IMPL_H_
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