chromium/chrome/browser/task_manager/providers/fallback_task_provider.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_TASK_MANAGER_PROVIDERS_FALLBACK_TASK_PROVIDER_H_
#define CHROME_BROWSER_TASK_MANAGER_PROVIDERS_FALLBACK_TASK_PROVIDER_H_

#include <map>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/task_manager/providers/task_provider.h"
#include "chrome/browser/task_manager/providers/task_provider_observer.h"

namespace task_manager {

// This FallbackTaskProvider is created to manage a hierarchy of subproviders.
// Tasks from the primary subproviders are always shown in the Task Manager.
// Tasks from the secondary subprovider are only shown when no task from any of
// the primary providers exists for that process.
class FallbackTaskProvider : public TaskProvider { … };

class FallbackTaskProvider::SubproviderSource : public TaskProviderObserver { … };

}  // namespace task_manager

#endif  // CHROME_BROWSER_TASK_MANAGER_PROVIDERS_FALLBACK_TASK_PROVIDER_H_