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// Copyright 2018 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_RESOURCE_COORDINATOR_RESOURCE_COORDINATOR_PARTS_H_
#define CHROME_BROWSER_RESOURCE_COORDINATOR_RESOURCE_COORDINATOR_PARTS_H_
#include "build/build_config.h"
#include "chrome/browser/resource_coordinator/tab_load_tracker.h"
#include "chrome/browser/resource_coordinator/tab_memory_metrics_reporter.h"
#if !BUILDFLAG(IS_ANDROID)
#include "chrome/browser/resource_coordinator/tab_lifecycle_unit_source.h"
#include "chrome/browser/resource_coordinator/tab_manager.h"
#endif
namespace resource_coordinator {
#if BUILDFLAG(IS_ANDROID)
class TabManager;
class TabLifecycleUnitSource;
#endif
// Contains the various parts of the resource coordinator. There should be only
// one instance of this class created early during the initialization of the
// browser process.
class ResourceCoordinatorParts {
public:
ResourceCoordinatorParts();
ResourceCoordinatorParts(const ResourceCoordinatorParts&) = delete;
ResourceCoordinatorParts& operator=(const ResourceCoordinatorParts&) = delete;
~ResourceCoordinatorParts();
TabMemoryMetricsReporter* tab_memory_metrics_reporter() {
if (!tab_memory_metrics_reporter_.get())
tab_memory_metrics_reporter_.reset(new TabMemoryMetricsReporter());
return tab_memory_metrics_reporter_.get();
}
TabLoadTracker* tab_load_tracker() { return &tab_load_tracker_; }
TabManager* tab_manager() {
#if BUILDFLAG(IS_ANDROID)
return nullptr;
#else
return &tab_manager_;
#endif // BUILDFLAG(IS_ANDROID)
}
TabLifecycleUnitSource* tab_lifecycle_unit_source() {
#if BUILDFLAG(IS_ANDROID)
return nullptr;
#else
return &tab_lifecycle_unit_source_;
#endif // BUILDFLAG(IS_ANDROID)
}
private:
// This should be declared before |tab_memory_metrics_reporter_| because it
// depends on this at shutdown.
TabLoadTracker tab_load_tracker_;
// Created on demand the first time it's being accessed.
std::unique_ptr<TabMemoryMetricsReporter> tab_memory_metrics_reporter_;
#if !BUILDFLAG(IS_ANDROID)
// Any change to this #ifdef must be reflected as well in
// chrome/browser/resource_coordinator/tab_manager_browsertest.cc
//
// The order of these 2 members matters, TabLifecycleUnitSource must be
// deleted before TabManager because it has a raw pointer to a UsageClock
// owned by TabManager.
TabManager tab_manager_;
TabLifecycleUnitSource tab_lifecycle_unit_source_;
#endif
};
} // namespace resource_coordinator
#endif // CHROME_BROWSER_RESOURCE_COORDINATOR_RESOURCE_COORDINATOR_PARTS_H__
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