chromium/components/browsing_topics/browsing_topics_service_impl.h

// Copyright 2022 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_BROWSING_TOPICS_BROWSING_TOPICS_SERVICE_IMPL_H_
#define COMPONENTS_BROWSING_TOPICS_BROWSING_TOPICS_SERVICE_IMPL_H_

#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "base/timer/wall_clock_timer.h"
#include "components/browsing_topics/annotator.h"
#include "components/browsing_topics/browsing_topics_calculator.h"
#include "components/browsing_topics/browsing_topics_service.h"
#include "components/browsing_topics/browsing_topics_state.h"
#include "components/history/core/browser/history_service.h"
#include "components/history/core/browser/history_service_observer.h"
#include "components/privacy_sandbox/privacy_sandbox_settings.h"

namespace content {
class BrowsingTopicsSiteDataManager;
}  // namespace content

namespace browsing_topics {

// A profile keyed service for scheduling browsing topics calculation,
// calculating the topics to give to a requesting context or to other internal
// components (e.g. UX), and handling relevant data deletion. Browsing topics
// calculation will happen periodically every time period of
// `kBrowsingTopicsTimePeriodPerEpoch`. See the `BrowsingTopicsCalculator` class
// for the calculation details.
class BrowsingTopicsServiceImpl
    : public BrowsingTopicsService,
      public privacy_sandbox::PrivacySandboxSettings::Observer,
      public history::HistoryServiceObserver { … };

}  // namespace browsing_topics

#endif  // COMPONENTS_BROWSING_TOPICS_BROWSING_TOPICS_SERVICE_IMPL_H_