chrome/browser/metrics/desktop_session_duration/desktop_profile_session_durations_service_factory.h

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_METRICS_DESKTOP_SESSION_DURATION_DESKTOP_PROFILE_SESSION_DURATIONS_SERVICE_FACTORY_H_
#define CHROME_BROWSER_METRICS_DESKTOP_SESSION_DURATION_DESKTOP_PROFILE_SESSION_DURATIONS_SERVICE_FACTORY_H_

#include "base/memory/singleton.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"

namespace metrics {

class DesktopProfileSessionDurationsService;

// Singleton that owns all DesktopProfileSessionDurationsServices and associates
// them with BrowserContexts. Listens for the BrowserContext's destruction
// notification and cleans up the associated
// DesktopProfileSessionDurationsServices.
class DesktopProfileSessionDurationsServiceFactory
    : public BrowserContextKeyedServiceFactory {
 public:
  // Creates the service if it doesn't exist already for the given
  // BrowserContext.
  static DesktopProfileSessionDurationsService* GetForBrowserContext(
      content::BrowserContext* context);

  static DesktopProfileSessionDurationsServiceFactory* GetInstance();

 private:
  friend struct base::DefaultSingletonTraits<
      DesktopProfileSessionDurationsServiceFactory>;

  DesktopProfileSessionDurationsServiceFactory();
  ~DesktopProfileSessionDurationsServiceFactory() override;

  // BrowserContextKeyedServiceFactory:
  KeyedService* BuildServiceInstanceFor(
      content::BrowserContext* context) const override;
  content::BrowserContext* GetBrowserContextToUse(
      content::BrowserContext* context) const override;

  DISALLOW_COPY_AND_ASSIGN(DesktopProfileSessionDurationsServiceFactory);
};

}  // namespace metrics

#endif  // CHROME_BROWSER_METRICS_DESKTOP_SESSION_DURATION_DESKTOP_PROFILE_SESSION_DURATIONS_SERVICE_FACTORY_H_