chromium/components/segmentation_platform/internal/signals/histogram_signal_handler.h

// Copyright 2021 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_SEGMENTATION_PLATFORM_INTERNAL_SIGNALS_HISTOGRAM_SIGNAL_HANDLER_H_
#define COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_SIGNALS_HISTOGRAM_SIGNAL_HANDLER_H_

#include <cstdint>
#include <map>
#include <memory>
#include <set>
#include <string>
#include <utility>

#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/histogram_base.h"
#include "base/metrics/statistics_recorder.h"
#include "base/observer_list.h"
#include "components/segmentation_platform/internal/database/ukm_database.h"
#include "components/segmentation_platform/public/proto/types.pb.h"

namespace segmentation_platform {

class SignalDatabase;

// Responsible for listening to histogram sample collection events and
// persisting them to the internal database for future processing.
class HistogramSignalHandler { … };

}  // namespace segmentation_platform

#endif  // COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_SIGNALS_HISTOGRAM_SIGNAL_HANDLER_H_