[mutter] wayland: Ensure each MetaWaylandSeat gets its MetaWaylandTabletSeat

[Carlos Garnacho <carlosg src gnome org>]

commit 2cec7ac5962b5e7b6c64cb04c4d0099be2746dfb
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jan 26 13:31:48 2016 +0100

    wayland: Ensure each MetaWaylandSeat gets its MetaWaylandTabletSeat
    
    Those need to be created in advance in order to handle properly the
    events, even on lack of requesting clients.

 src/wayland/meta-wayland-seat.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/wayland/meta-wayland-seat.c b/src/wayland/meta-wayland-seat.c
index 367c1f1..9a7fa2e 100644
--- a/src/wayland/meta-wayland-seat.c
+++ b/src/wayland/meta-wayland-seat.c
@@ -205,7 +205,8 @@ meta_wayland_seat_devices_updated (ClutterDeviceManager *device_manager,
 }
 
 static MetaWaylandSeat *
-meta_wayland_seat_new (struct wl_display *display)
+meta_wayland_seat_new (MetaWaylandCompositor *compositor,
+                       struct wl_display     *display)
 {
   MetaWaylandSeat *seat = g_new0 (MetaWaylandSeat, 1);
   ClutterDeviceManager *device_manager;
@@ -224,13 +225,16 @@ meta_wayland_seat_new (struct wl_display *display)
 
   wl_global_create (display, &wl_seat_interface, META_WL_SEAT_VERSION, seat, bind_seat);
 
+  meta_wayland_tablet_manager_ensure_seat (compositor->tablet_manager, seat);
+
   return seat;
 }
 
 void
 meta_wayland_seat_init (MetaWaylandCompositor *compositor)
 {
-  compositor->seat = meta_wayland_seat_new (compositor->wayland_display);
+  compositor->seat = meta_wayland_seat_new (compositor,
+                                            compositor->wayland_display);
 }
 
 void