Clean up remoting project

remoting/host/user_authenticator_pam.h

-// Copyright (c) 2011 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 REMOTING_HOST_USER_AUTHENTICATOR_PAM_H_
-#define REMOTING_HOST_USER_AUTHENTICATOR_PAM_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "remoting/host/user_authenticator.h"
-
-struct pam_message;
-struct pam_response;
-
-namespace remoting {
-
-// Class to perform a single PAM user authentication.
-//
-// TODO(lambroslambrou): As pam_authenticate() can be blocking, this needs to
-// expose an asynchronous API, with pam_authenticate() called in a background
-// thread.
-class UserAuthenticatorPam : public UserAuthenticator {
- public:
-  UserAuthenticatorPam();
-  virtual ~UserAuthenticatorPam();
-  virtual bool Authenticate(const std::string& username,
-                            const std::string& password);
-
- private:
-  // Conversation function passed to PAM as a callback.
-  static int ConvFunction(int num_msg,
-                          const pam_message** msg,
-                          pam_response** resp,
-                          void* appdata_ptr);
-
-  // Store these for the PAM conversation function.
-  std::string username_;
-  std::string password_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserAuthenticatorPam);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_HOST_USER_AUTHENTICATOR_PAM_H_