[Draft] Fix canceling pin prompt causes host overload

remoting/protocol/session.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_SESSION_H_
 #define REMOTING_PROTOCOL_SESSION_H_
 
 #include <string>
 
 #include "remoting/protocol/errors.h"
@@ skipping 20 matching lines @@
 
     // Sent session-initiate, but haven't received session-accept.
     CONNECTING,
 
     // Received session-initiate, but haven't sent session-accept.
     ACCEPTING,
 
     // Session has been accepted and is pending authentication.
     CONNECTED,
 
+    // Session has started authenticating.
+    AUTHENTICATING,
+
     // Session has been connected and authenticated.
     AUTHENTICATED,
 
     // Session has been closed.
     CLOSED,
 
     // Connection has failed.
     FAILED,
   };
 
@@ skipping 60 matching lines @@
   virtual void Close() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Session);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_SESSION_H_