fix virtual function hiding warnings introduced to changing wxSockAddress argument of Connect() to be passed by const reference

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56460 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/protocol/protocol.h

@@ -59,7 +59,8 @@ public:
 #if wxUSE_SOCKETS
     bool Reconnect();
     virtual bool Connect( const wxString& WXUNUSED(host) ) { return FALSE; }
-    virtual bool Connect( wxSockAddress& addr, bool WXUNUSED(wait) = TRUE) { return wxSocketClient::Connect(addr); }
+    virtual bool Connect( const wxSockAddress& addr, bool WXUNUSED(wait) = TRUE)
+        { return wxSocketClient::Connect(addr); }
 
     // read a '\r\n' terminated line from the given socket and put it in
     // result (without the terminators)