[metacity] frames: fix typo

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 21d448772ce2e819035cd168f4434b0e79ac9884
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Feb 19 00:25:57 2015 +0200

    frames: fix typo

 src/ui/frames.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/ui/frames.c b/src/ui/frames.c
index 1a287a6..36b13e8 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -2335,7 +2335,7 @@ clip_to_screen (cairo_region_t *region, MetaUIFrame *frame)
                  META_CORE_GET_FRAME_Y, &frame_area.y,
                  META_CORE_GET_FRAME_WIDTH, &frame_area.width,
                  META_CORE_GET_FRAME_HEIGHT, &frame_area.height,
-                 META_CORE_GET_SCREEN_WIDTH, &screen_area.height,
+                 META_CORE_GET_SCREEN_WIDTH, &screen_area.width,
                  META_CORE_GET_SCREEN_HEIGHT, &screen_area.height,
                  META_CORE_GET_END);