chromium/components/performance_manager/public/metrics/metrics_collector.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_PERFORMANCE_MANAGER_PUBLIC_METRICS_METRICS_COLLECTOR_H_
#define COMPONENTS_PERFORMANCE_MANAGER_PUBLIC_METRICS_METRICS_COLLECTOR_H_

#include <array>
#include <optional>
#include <set>

#include "base/numerics/clamped_math.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/performance_manager/public/graph/frame_node.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_source_id.h"

namespace performance_manager {

extern const base::TimeDelta kMetricsReportDelayTimeout;
extern const int kDefaultFrequencyUkmEQTReported;

// The MetricsCollector is a graph observer that reports UMA/UKM.
class MetricsCollector : public FrameNode::ObserverDefaultImpl,
                         public GraphOwned,
                         public PageNode::ObserverDefaultImpl,
                         public ProcessNode::ObserverDefaultImpl { … };

}  // namespace performance_manager

#endif  // COMPONENTS_PERFORMANCE_MANAGER_PUBLIC_METRICS_METRICS_COLLECTOR_H_