Public Sessions: fetch device robot api token during enterprise enrollment.

chrome/browser/chromeos/settings/device_oauth2_token_service_factory.h

 // Copyright 2013 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_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_
 #define CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_
 
 #include "base/basictypes.h"
 
 namespace chromeos {
 
 class DeviceOAuth2TokenService;
 
 class DeviceOAuth2TokenServiceFactory {
  public:
   // Returns the instance of the DeviceOAuth2TokenService singleton.
   // May return null during browser startup and shutdown.  Do not hold
   // the pointer returned by this method; call this method every time
   // and check for null to handle the case where this instance is destroyed
   // during shutdown.
   static DeviceOAuth2TokenService* Get();
 
- private:
-  friend class ChromeBrowserMainPartsChromeos;
-
-  DeviceOAuth2TokenServiceFactory();
-
   // Called by ChromeBrowserMainPartsChromeOS in order to bootstrap the
   // DeviceOAuth2TokenService instance after the required global data is
   // available (local state and request context getter).
   static void Initialize();
 
   // Called by ChromeBrowserMainPartsChromeOS in order to shutdown the
   // DeviceOAuth2TokenService instance and cancel all in-flight requests
   // before the required global data is destroyed (local state and request
   // context getter).
   static void Shutdown();
 
+ private:
+  DeviceOAuth2TokenServiceFactory();
+
   DISALLOW_COPY_AND_ASSIGN(DeviceOAuth2TokenServiceFactory);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_OAUTH2_TOKEN_SERVICE_FACTORY_H_