[Chromoting] Move SharedSecretHash from Me2MeHostAuthenticatorFactory to AuthenticationMethod.

remoting/protocol/me2me_host_authenticator_factory.h

 // Copyright (c) 2012 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_PROTOCOL_ME2ME_HOST_AUTHENTICATOR_FACTORY_H_
 #define REMOTING_PROTOCOL_ME2ME_HOST_AUTHENTICATOR_FACTORY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/protocol/authentication_method.h"
 #include "remoting/protocol/authenticator.h"
 
 namespace crypto {
 class RSAPrivateKey;
 }  // namespace crypto
 
 namespace remoting {
 namespace protocol {
 
-// SharedSecretHash stores hash of a host secret paired with the type
-// of the hashing function.
-struct SharedSecretHash {
-  AuthenticationMethod::HashFunction hash_function;
-  std::string value;
-
-  // Parse string representation of a shared secret hash. The |as_string|
-  // must be in form "<hash_function>:<hash_value_base64>".
-  bool Parse(const std::string& as_string);
-};
-
 class Me2MeHostAuthenticatorFactory : public AuthenticatorFactory {
  public:
   // Doesn't take ownership of |local_private_key|.
   Me2MeHostAuthenticatorFactory(
       const std::string& local_jid,
       const std::string& local_cert,
       const crypto::RSAPrivateKey& local_private_key,
       const SharedSecretHash& shared_secret_hash);
   virtual ~Me2MeHostAuthenticatorFactory();
 
   // AuthenticatorFactory interface.
   virtual scoped_ptr<Authenticator> CreateAuthenticator(
       const std::string& remote_jid,
       const buzz::XmlElement* first_message) OVERRIDE;
 
  private:
   std::string local_jid_prefix_;
   std::string local_cert_;
   scoped_ptr<crypto::RSAPrivateKey> local_private_key_;
   SharedSecretHash shared_secret_hash_;
 
   DISALLOW_COPY_AND_ASSIGN(Me2MeHostAuthenticatorFactory);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_ME2ME_HOST_AUTHENTICATOR_FACTORY_H_