[mutter] Fix typo when computing shadow bounds

[Owen Taylor <otaylor src gnome org>]

commit be8df206756a0481c79d8d28a14e234b61ebbc9f
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Fri Jul 8 22:33:45 2011 -0400

    Fix typo when computing shadow bounds
    
    A x/y typo that was causing shadow bounds to be incorrectly
    computed and trails to be left in some circumstances. Behavior
    noted by Jakub Steiner.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=649374

 src/compositor/meta-shadow-factory.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/compositor/meta-shadow-factory.c b/src/compositor/meta-shadow-factory.c
index f8bb1a8..ef35710 100644
--- a/src/compositor/meta-shadow-factory.c
+++ b/src/compositor/meta-shadow-factory.c
@@ -371,7 +371,7 @@ meta_shadow_get_bounds  (MetaShadow            *shadow,
                          cairo_rectangle_int_t *bounds)
 {
   bounds->x = window_x - shadow->outer_border_left;
-  bounds->y = window_x - shadow->outer_border_top;
+  bounds->y = window_y - shadow->outer_border_top;
   bounds->width = window_width + shadow->outer_border_left + shadow->outer_border_right;
   bounds->height = window_height + shadow->outer_border_top + shadow->outer_border_bottom;
 }