Commit 9de0e31746 changed the signature
of __GLXScreen's createDrawable method.
Update the glxWinCreateDrawable() function in XWin's GLX provider
appropriately.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Tested-by: Colin Harrison <colin.harrison@virgin.net>
Signed-off-by: Keith Packard <keithp@keithp.com>