Simplify clear_region interface. -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2011-05-29 Didier Verna <didier@xemacs.org> * console-impl.h (struct console_methods): Remove device parameter from the clear_region method prototype. * redisplay-output.c (redisplay_clear_region): Remove the device parameter from the clear_region method call. * console-stream.c (stream_clear_region): * redisplay-msw.c (mswindows_clear_region): * redisplay-tty.c (tty_clear_region): Update accordingly. * redisplay-xlike-inc.c (XLIKE_clear_region): Ditto. Get the device from the frame structure instead.