chrome/browser/chromeos/settings/device_oauth2_token_service_factory.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_
   6 #define CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_
   7
   8 #include <queue>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12
  13 namespace chromeos {
  14
  15 class DeviceOAuth2TokenService;
  16
  17 class DeviceOAuth2TokenServiceFactory {
  18  public:
  19   // Returns the instance of the DeviceOAuth2TokenService singleton.  May return
  20   // NULL during browser startup and shutdown.  When calling Get(), either make
  21   // sure that your code executes after browser startup and before shutdown or
  22   // be careful to call Get() every time (instead of holding a pointer) and
  23   // check for NULL to handle cases where you might access
  24   // DeviceOAuth2TokenService during startup or shutdown.
  25   static DeviceOAuth2TokenService* Get();
  26
  27   // Called by ChromeBrowserMainPartsChromeOS in order to bootstrap the
  28   // DeviceOAuth2TokenService instance after the required global data is
  29   // available (local state, request context getter and CrosSettings).
  30   static void Initialize();
  31
  32   // Called by ChromeBrowserMainPartsChromeOS in order to shutdown the
  33   // DeviceOAuth2TokenService instance and cancel all in-flight requests before
  34   // the required global data is destroyed (local state, request context getter
  35   // and CrosSettings).
  36   static void Shutdown();
  37
  38  private:
  39   DeviceOAuth2TokenServiceFactory();
  40   ~DeviceOAuth2TokenServiceFactory();
  41
  42   DISALLOW_COPY_AND_ASSIGN(DeviceOAuth2TokenServiceFactory);
  43 };
  44
  45 }  // namespace chromeos
  46
  47 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_