[gtk+] tests: Unrealize renderer

[Benjamin Otte <otte src gnome org>]

commit bb8baa2b76a454916e86ca6e236777e439d5422a
Author: Benjamin Otte <otte redhat com>
Date:   Fri Feb 2 15:34:34 2018 +0100

    tests: Unrealize renderer
    
    Renderers must be unrealized these days.

 tests/rendernode.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/tests/rendernode.c b/tests/rendernode.c
index b1e6467..f56d088 100644
--- a/tests/rendernode.c
+++ b/tests/rendernode.c
@@ -138,6 +138,7 @@ main(int argc, char **argv)
                             cairo_image_surface_get_data (surface),
                             cairo_image_surface_get_stride (surface));
       cairo_surface_mark_dirty (surface);
+      gsk_renderer_unrealize (renderer);
       g_object_unref (texture);
       g_object_unref (window);
       g_object_unref (renderer);