connectionManager: new API

Change-Id: I96eb3ed8d0d4f82adb28c8d47a5751bc3f603560
diff --git a/include/ice_transport.h b/include/ice_transport.h
index 8c69e93..c2d4756 100644
--- a/include/ice_transport.h
+++ b/include/ice_transport.h
@@ -50,6 +50,7 @@
 }
 
 class IceTransport;
+class IceTransportFactory;
 
 using IceRecvCb = std::function<ssize_t(unsigned char* buf, size_t len)>;
 using IceCandidate = pj_ice_sess_cand;