chromium/chrome/browser/performance_manager/metrics/page_resource_monitor.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 CHROME_BROWSER_PERFORMANCE_MANAGER_METRICS_PAGE_RESOURCE_MONITOR_H_
#define CHROME_BROWSER_PERFORMANCE_MANAGER_METRICS_PAGE_RESOURCE_MONITOR_H_

#include <map>
#include <memory>
#include <optional>

#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/resource_attribution/queries.h"
#include "components/performance_manager/public/resource_attribution/query_results.h"
#include "components/performance_manager/public/resource_attribution/resource_contexts.h"
#include "components/system_cpu/cpu_sample.h"

namespace performance_manager::metrics {

// Periodically reports tab resource usage via UKM.
class PageResourceMonitor : public resource_attribution::QueryResultObserver,
                            public GraphOwnedDefaultImpl { … };

}  // namespace performance_manager::metrics

#endif  // CHROME_BROWSER_PERFORMANCE_MANAGER_METRICS_PAGE_RESOURCE_MONITOR_H_