Enable QUIC support in chromoting

remoting/protocol/authenticator.h

Index: remoting/protocol/authenticator.h
diff --git a/remoting/protocol/authenticator.h b/remoting/protocol/authenticator.h
index 5ed10d862bcd8f4349793921c04b9d5e91a483fc..07b8f65a853ba649ef742b3fde7f80bab8925f51 100644
--- a/remoting/protocol/authenticator.h
+++ b/remoting/protocol/authenticator.h
@@ -109,8 +109,13 @@ class Authenticator {
   // authentication message that needs to be sent to the peer.
   virtual scoped_ptr<buzz::XmlElement> GetNextMessage() = 0;
 
+  // Returns the auth key received as result of the authentication handshake.
+  virtual const std::string& GetAuthKey() const = 0;
+
   // Creates new authenticator for a channel. Can be called only in
   // the ACCEPTED state.
+  //
+  // TODO(sergeyu): Remove this method once migration to QUIC is finished.
   virtual scoped_ptr<ChannelAuthenticator>
       CreateChannelAuthenticator() const = 0;
 };