[gtk+/composite-templates] wayland: Save the serial number for the ping event

[Juan Pablo Ugarte <jpu src gnome org>]

commit 3f38abd2664c11e575096b92a84357fa2b376ddc
Author: Rob Bradford <rob linux intel com>
Date:   Wed Jul 11 17:09:23 2012 +0100

    wayland: Save the serial number for the ping event

 gdk/wayland/gdkwindow-wayland.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 963da15..2544666 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -696,6 +696,13 @@ shell_surface_ping (void                    *data,
                     struct wl_shell_surface *shell_surface,
                     uint32_t                 serial)
 {
+
+  GdkWindow *window = GDK_WINDOW (data);
+  GdkWaylandDisplay *wayland_display =
+    GDK_WAYLAND_DISPLAY (gdk_window_get_display (window));
+
+  _gdk_wayland_display_update_serial (wayland_display, serial);
+
   wl_shell_surface_pong(shell_surface, serial);
 }