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// Copyright 2014 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 IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
#define IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_

#include <string>

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread_checker.h"
#include "ios/chrome/browser/application_context.h"

class PrefRegistrySimple;

namespace base {
class CommandLine;
class SequencedTaskRunner;
}

class ApplicationContextImpl : public ApplicationContext {
 public:
  ApplicationContextImpl(base::SequencedTaskRunner* local_state_task_runner,
                         const base::CommandLine& command_line);
  ~ApplicationContextImpl() override;

  // Registers local state prefs.
  static void RegisterPrefs(PrefRegistrySimple* registry);

  // Sets the locale used by the application.
  void SetApplicationLocale(const std::string& locale);

 private:
  // ApplicationContext implementation.
  void OnAppEnterForeground() override;
  void OnAppEnterBackground() override;
  bool WasLastShutdownClean() override;
  PrefService* GetLocalState() override;
  net::URLRequestContextGetter* GetSystemURLRequestContext() override;
  const std::string& GetApplicationLocale() override;
  ios::ChromeBrowserStateManager* GetChromeBrowserStateManager() override;
  metrics::MetricsService* GetMetricsService() override;
  variations::VariationsService* GetVariationsService() override;
  policy::BrowserPolicyConnector* GetBrowserPolicyConnector() override;
  policy::PolicyService* GetPolicyService() override;
  rappor::RapporService* GetRapporService() override;
  net_log::ChromeNetLog* GetNetLog() override;
  network_time::NetworkTimeTracker* GetNetworkTimeTracker() override;

  void CreateLocalState();

  base::ThreadChecker thread_checker_;
  scoped_ptr<PrefService> local_state_;
  scoped_ptr<net_log::ChromeNetLog> net_log_;
  scoped_ptr<network_time::NetworkTimeTracker> network_time_tracker_;
  std::string application_locale_;

#if !defined(ENABLE_CONFIGURATION_POLICY)
  // Must be destroyed after |local_state_|.
  // This is a stub when policy is not enabled. Otherwise the PolicyService is
  // owned by the BrowserPolicyConnector and this is not used.
  scoped_ptr<policy::PolicyService> policy_service_;
#endif

  // Sequenced task runner for local state related I/O tasks.
  const scoped_refptr<base::SequencedTaskRunner> local_state_task_runner_;

  bool was_last_shutdown_clean_;
  bool created_local_state_;

  DISALLOW_COPY_AND_ASSIGN(ApplicationContextImpl);
};

#endif  // IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_