gtk-egl: add scanout_disable support

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1487669841-13668-7-git-send-email-kraxel@redhat.com
diff --git a/ui/gtk.c b/ui/gtk.c
index 1dd0b53..640ff84 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -688,6 +688,7 @@
     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
     .dpy_gl_ctx_make_current = gd_egl_make_current,
     .dpy_gl_ctx_get_current  = qemu_egl_get_current_context,
+    .dpy_gl_scanout_disable  = gd_egl_scanout_disable,
     .dpy_gl_scanout_texture  = gd_egl_scanout_texture,
     .dpy_gl_update           = gd_egl_scanout_flush,
 };