Move UserContext to its own file

chrome/browser/chromeos/login/managed/supervised_user_authentication.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_LOGIN_MANAGED_SUPERVISED_USER_AUTHENTICATION_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_MANAGED_SUPERVISED_USER_AUTHENTICATION_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/values.h"
+#include "chrome/browser/chromeos/login/auth/user_context.h"
 #include "chrome/browser/chromeos/login/managed/supervised_user_login_flow.h"
 
 namespace chromeos {
 
 class SupervisedUserManager;
-class UserContext;
 
 // This is a class that encapsulates all details of password handling for
 // supervised users.
 // Main property is the schema used to handle password. For now it can be either
 // plain password schema, when plain text password is passed to standard
 // cryprohome authentication algorithm without modification, or hashed password
 // schema, when password is additioUpdateContextToChecknally hashed with
 // user-specific salt.
 // Second schema is required to allow password syncing across devices for
 // supervised users.
@@ skipping 95 matching lines @@
   // Target schema version. Affects migration process and new user creation.
   Schema stable_schema_;
 
 
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserAuthentication);
 };
 
 } // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_MANAGED_SUPERVISED_USER_AUTHENTICATION_H_