Revert of [sync]: add ManagedUserSigninManagerWrapper and pass to ProfileSyncService

chrome/browser/managed_mode/managed_user_signin_manager_wrapper.h

-// 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 CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_SIGNIN_MANAGER_WRAPPER_H_
-#define CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_SIGNIN_MANAGER_WRAPPER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-
-class SigninManagerBase;
-
-// Some chrome cloud services support managed users as well as normally
-// authenticated users that sign in through SigninManager.  To facilitate
-// getting the "effective" username and account identifiers, services can
-// use this class to wrap the SigninManager and return managed user account
-// information when appropriate.
-class ManagedUserSigninManagerWrapper {
- public:
-  explicit ManagedUserSigninManagerWrapper(SigninManagerBase* original);
-  ~ManagedUserSigninManagerWrapper();
-
-  std::string GetEffectiveUsername() const;
-  std::string GetAccountIdToUse() const;
-
-  SigninManagerBase* GetOriginal();
-
- private:
-  SigninManagerBase* original_;
-  DISALLOW_COPY_AND_ASSIGN(ManagedUserSigninManagerWrapper);
-};
-
-#endif  // CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_SIGNIN_MANAGER_WRAPPER_H_