[mutter] backend-x11: Add KeyPress / KeyRelease to mask

[Jasper St. Pierre <jstpierre src gnome org>]

commit fdd43fc2d9707201e67c9708218a0f05d5e88957
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Wed Apr 23 13:36:11 2014 -0400

    backend-x11: Add KeyPress / KeyRelease to mask

 src/backends/x11/meta-backend-x11.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/x11/meta-backend-x11.c b/src/backends/x11/meta-backend-x11.c
index bb7fb9b..5fbdcdf 100644
--- a/src/backends/x11/meta-backend-x11.c
+++ b/src/backends/x11/meta-backend-x11.c
@@ -221,6 +221,8 @@ meta_backend_x11_grab_device (MetaBackend *backend,
   XISetMask (mask.mask, XI_Enter);
   XISetMask (mask.mask, XI_Leave);
   XISetMask (mask.mask, XI_Motion);
+  XISetMask (mask.mask, XI_KeyPress);
+  XISetMask (mask.mask, XI_KeyRelease);
 
   MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
   MetaCursorReference *cursor_ref = meta_cursor_tracker_get_displayed_cursor (tracker);