[mutter/gbsneto/effects-paint-nodes: 16/22] clutter/offscreen-effect: Simplify paint

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

commit 8f2a481bee12cf4c9d0fc219ae320a5f083210a5
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Jun 29 15:12:08 2020 -0300

    clutter/offscreen-effect: Simplify paint
    
    Simply chain up to get the pre and post paint methods,
    instead of reimplementing ClutterEffect.paint()
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1340

 clutter/clutter/clutter-offscreen-effect.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)
---
diff --git a/clutter/clutter/clutter-offscreen-effect.c b/clutter/clutter/clutter-offscreen-effect.c
index e3846e7314..7a8cc6ab6a 100644
--- a/clutter/clutter/clutter-offscreen-effect.c
+++ b/clutter/clutter/clutter-offscreen-effect.c
@@ -483,15 +483,10 @@ clutter_offscreen_effect_paint (ClutterEffect           *effect,
    */
   if (priv->offscreen == NULL || (flags & CLUTTER_EFFECT_PAINT_ACTOR_DIRTY))
     {
-      ClutterEffectClass *effect_class = CLUTTER_EFFECT_GET_CLASS (effect);
-      gboolean pre_paint_succeeded;
+      ClutterEffectClass *parent_class =
+        CLUTTER_EFFECT_CLASS (clutter_offscreen_effect_parent_class);
 
-      pre_paint_succeeded = effect_class->pre_paint (effect, paint_context);
-
-      clutter_actor_continue_paint (priv->actor, paint_context);
-
-      if (pre_paint_succeeded)
-        effect_class->post_paint (effect, paint_context);
+      parent_class->paint (effect, paint_context, flags);
     }
   else
     clutter_offscreen_effect_paint_texture (self, paint_context);