chromium/components/metrics/histogram_controller.h

// Copyright 2012 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_METRICS_HISTOGRAM_CONTROLLER_H_
#define COMPONENTS_METRICS_HISTOGRAM_CONTROLLER_H_

#include <map>
#include <string>
#include <vector>

#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/singleton.h"
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/sequence_checker.h"
#include "base/timer/timer.h"
#include "components/metrics/histogram_child_process.h"
#include "components/metrics/public/mojom/histogram_fetcher.mojom.h"
#include "mojo/public/cpp/bindings/remote.h"

namespace metrics {

class HistogramSubscriber;

// HistogramController is used on the browser process to collect histogram data.
// Only one thread (typically the UI thread) is allowed to interact with the
// HistogramController object.
class COMPONENT_EXPORT(METRICS) HistogramController { … };

}  // namespace metrics

#endif  // COMPONENTS_METRICS_HISTOGRAM_CONTROLLER_H_