Add gnubby authentication to remoting host

remoting/host/chromoting_host.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_HOST_CHROMOTING_HOST_H_
 #define REMOTING_HOST_CHROMOTING_HOST_H_
 
 #include <list>
 #include <string>
 
@@ skipping 91 matching lines @@
   // thread after the host is started. Must not be called more than
   // once per host instance because it may not be safe to delete
   // factory before all authenticators it created are deleted.
   void SetAuthenticatorFactory(
       scoped_ptr<protocol::AuthenticatorFactory> authenticator_factory);
 
   // Enables/disables curtaining when one or more clients are connected.
   // Takes immediate effect if clients are already connected.
   void SetEnableCurtaining(bool enable);
 
+  // Enables/disables gnubby auth forwarding.
+  void SetEnableGnubbyAuth(bool enable);
+
   // Sets the maximum duration of any session. By default, a session has no
   // maximum duration.
   void SetMaximumSessionDuration(const base::TimeDelta& max_session_duration);
 
   ////////////////////////////////////////////////////////////////////////////
   // ClientSession::EventHandler implementation.
   virtual bool OnSessionAuthenticated(ClientSession* client) OVERRIDE;
   virtual void OnSessionChannelsConnected(ClientSession* client) OVERRIDE;
   virtual void OnSessionAuthenticationFailed(ClientSession* client) OVERRIDE;
   virtual void OnSessionClosed(ClientSession* session) OVERRIDE;
@@ skipping 71 matching lines @@
   // Flags used for RejectAuthenticatingClient().
   bool authenticating_client_;
   bool reject_authenticating_client_;
 
   // True if the curtain mode is enabled.
   bool enable_curtaining_;
 
   // The maximum duration of any session.
   base::TimeDelta max_session_duration_;
 
+  // True if gnubby auth is enabled.
+  bool enable_gnubby_auth_;
+
   // The pairing registry for PIN-less authentication.
   scoped_refptr<protocol::PairingRegistry> pairing_registry_;
 
   base::WeakPtrFactory<ChromotingHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromotingHost);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CHROMOTING_HOST_H_