[mutter] tests/clutter: Stop using cogl_offscreen_new_to_texture()

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 4b939439ac4534047bb253de983c6dad8b4f2cb2
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Oct 13 09:39:46 2020 +0200

    tests/clutter: Stop using cogl_offscreen_new_to_texture()
    
    Use the non-deprecated variant.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1496

 src/tests/clutter/interactive/test-cogl-offscreen.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/src/tests/clutter/interactive/test-cogl-offscreen.c 
b/src/tests/clutter/interactive/test-cogl-offscreen.c
index 5d80899447..d98f706ea9 100644
--- a/src/tests/clutter/interactive/test-cogl-offscreen.c
+++ b/src/tests/clutter/interactive/test-cogl-offscreen.c
@@ -252,11 +252,14 @@ test_coglbox_map (ClutterActor *actor)
   ClutterPerspective perspective;
   float stage_width;
   float stage_height;
+  GError *error = NULL;
 
   CLUTTER_ACTOR_CLASS (test_coglbox_parent_class)->map (actor);
 
   printf ("Creating offscreen\n");
-  priv->offscreen_id = cogl_offscreen_new_to_texture (priv->texture_id);
+  priv->offscreen_id = cogl_offscreen_new_with_texture (priv->texture_id);
+  if (!cogl_framebuffer_allocate (priv->offscreen_id, &error))
+    g_error ("Failed to allocate framebuffer: %s", error->message);
 
   stage = clutter_actor_get_stage (actor);
   clutter_stage_get_perspective (CLUTTER_STAGE (stage), &perspective);