[gtk+] win32: chain up on display dispose

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 79f7f19c6e6c6a834e2b43b6e7bed07118e47fad
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Nov 12 15:59:43 2015 +0100

    win32: chain up on display dispose

 gdk/win32/gdkdisplay-win32.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gdk/win32/gdkdisplay-win32.c b/gdk/win32/gdkdisplay-win32.c
index b1e6f01..c819efc 100644
--- a/gdk/win32/gdkdisplay-win32.c
+++ b/gdk/win32/gdkdisplay-win32.c
@@ -710,7 +710,9 @@ gdk_win32_display_dispose (GObject *object)
 {
   GdkWin32Display *display_win32 = GDK_WIN32_DISPLAY (object);
 
-  g_clear_pointer(&display_win32->hwnd, (GDestroyNotify)DestroyWindow);
+  g_clear_pointer (&display_win32->hwnd, (GDestroyNotify)DestroyWindow);
+
+  G_OBJECT_CLASS (gdk_win32_display_parent_class)->dispose (object);
 }
 
 static void