libxcwm: xcwm_image_copy_full not using correct coordinates.
libxcwm: xcwm_image_copy_full not using correct coordinates.

Because xcwm_image_copy_full retrevies the window image in window
relative coordinates, x & y should be 0. Was using the root relative
x,y.

Signed-off-by: Jess VanDerwalker <washu@sonic.net>

Reviewed-by: Jeremy Huddleston Sequoia <db3cec0cba09acb9cf8fd8bd399a3b27498cf883@apple.com>

freedesktop-unofficial-mirror/xorg__lib__libxcwm,freedesktop-unofficial-mirror/xorg__lib__libxcwm