chromium/chrome/browser/performance_manager/policies/urgent_page_discarding_policy.h

// Copyright 2020 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_POLICIES_URGENT_PAGE_DISCARDING_POLICY_H_
#define CHROME_BROWSER_PERFORMANCE_MANAGER_POLICIES_URGENT_PAGE_DISCARDING_POLICY_H_

#include <optional>

#include "base/memory/memory_pressure_listener.h"
#include "base/sequence_checker.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "components/memory_pressure/reclaim_target.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/system_node.h"

namespace performance_manager {

namespace policies {

// Urgently discard a tab when receiving a memory pressure signal.
class UrgentPageDiscardingPolicy : public GraphOwned,
                                   public SystemNode::ObserverDefaultImpl { … };

}  // namespace policies
}  // namespace performance_manager

#endif  // CHROME_BROWSER_PERFORMANCE_MANAGER_POLICIES_URGENT_PAGE_DISCARDING_POLICY_H_