Move UserContext to its own file

chrome/browser/chromeos/login/managed/managed_user_creation_controller_new.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/managed/managed_user_creation_controller_new.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/sys_info.h"
 #include "base/task_runner_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/auth/mount_manager.h"
+#include "chrome/browser/chromeos/login/auth/user_context.h"
 #include "chrome/browser/chromeos/login/managed/locally_managed_user_constants.h"
 #include "chrome/browser/chromeos/login/managed/supervised_user_authentication.h"
 #include "chrome/browser/chromeos/login/users/supervised_user_manager.h"
 #include "chrome/browser/chromeos/login/users/user.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chromeos/cryptohome/cryptohome_parameters.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ skipping 358 matching lines @@
   creation_context_->registration_utility.reset();
   chrome::AttemptUserExit();
 }
 
 std::string ManagedUserCreationControllerNew::GetManagedUserId() {
   DCHECK(creation_context_);
   return creation_context_->local_user_id;
 }
 
 }  // namespace chromeos