[mutter] wayland: Add missing breaks on MetaWaylandSeat event handler

[Carlos Garnacho <carlosg src gnome org>]

commit eac0e253e1083e5d1c4158e4f88cf2913d5240e7
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jan 17 14:00:44 2018 +0100

    wayland: Add missing breaks on MetaWaylandSeat event handler
    
    The events might fall through if there's no corresponding active
    pointer/keyboard/touch interface. Barring bugs this should be safe to do,
    just a bit wasteful.

 src/wayland/meta-wayland-seat.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/wayland/meta-wayland-seat.c b/src/wayland/meta-wayland-seat.c
index a574594..68a2115 100644
--- a/src/wayland/meta-wayland-seat.c
+++ b/src/wayland/meta-wayland-seat.c
@@ -374,17 +374,20 @@ meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
       if (meta_wayland_seat_has_pointer (seat))
         return meta_wayland_pointer_handle_event (seat->pointer, event);
 
+      break;
     case CLUTTER_KEY_PRESS:
     case CLUTTER_KEY_RELEASE:
       if (meta_wayland_seat_has_keyboard (seat))
         return meta_wayland_keyboard_handle_event (seat->keyboard,
                                                    (const ClutterKeyEvent *) event);
+      break;
     case CLUTTER_TOUCH_BEGIN:
     case CLUTTER_TOUCH_UPDATE:
     case CLUTTER_TOUCH_END:
       if (meta_wayland_seat_has_touch (seat))
         return meta_wayland_touch_handle_event (seat->touch, event);
 
+      break;
     default:
       break;
     }