chromium/components/feature_engagement/internal/availability_model.h

// Copyright 2017 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_FEATURE_ENGAGEMENT_INTERNAL_AVAILABILITY_MODEL_H_
#define COMPONENTS_FEATURE_ENGAGEMENT_INTERNAL_AVAILABILITY_MODEL_H_

#include <stdint.h>

#include <optional>

#include "base/feature_list.h"
#include "base/functional/callback_forward.h"

namespace feature_engagement {

// An AvailabilityModel tracks when each feature was made available to an
// end user.
class AvailabilityModel { … };

}  // namespace feature_engagement

#endif  // COMPONENTS_FEATURE_ENGAGEMENT_INTERNAL_AVAILABILITY_MODEL_H_