chromium/chrome/browser/resource_coordinator/tab_lifecycle_unit_source.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 CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_LIFECYCLE_UNIT_SOURCE_H_
#define CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_LIFECYCLE_UNIT_SOURCE_H_

#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "chrome/browser/resource_coordinator/lifecycle_unit_source_base.h"
#include "chrome/browser/ui/browser_list_observer.h"
#include "chrome/browser/ui/browser_tab_strip_tracker.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "components/performance_manager/public/mojom/coordination_unit.mojom.h"
#include "components/performance_manager/public/mojom/lifecycle.mojom-forward.h"

class TabStripModel;

namespace content {
class WebContents;
}

namespace resource_coordinator {

class TabLifecycleObserver;
class TabLifecycleStateObserver;
class TabLifecycleUnitExternal;
class UsageClock;

// Creates and destroys LifecycleUnits as tabs are created and destroyed.
class TabLifecycleUnitSource : public BrowserListObserver,
                               public LifecycleUnitSourceBase,
                               public TabStripModelObserver { … };

}  // namespace resource_coordinator

#endif  // CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_LIFECYCLE_UNIT_SOURCE_H_