[gtk/wip/chergert/glproto] stub out fallback

[Christian Hergert <chergert src gnome org>]

commit 1038a7b0fa3d88e3414209a750ce94bc6b0d2a54
Author: Christian Hergert <chergert redhat com>
Date:   Wed Dec 30 11:32:32 2020 -0800

    stub out fallback

 gsk/next/gskglrenderjob.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
---
diff --git a/gsk/next/gskglrenderjob.c b/gsk/next/gskglrenderjob.c
index c606b17654..c3bda3ae39 100644
--- a/gsk/next/gskglrenderjob.c
+++ b/gsk/next/gskglrenderjob.c
@@ -491,6 +491,12 @@ gsk_gl_render_job_draw_rect (GskGLRenderJob  *job,
   vertices[5].uv[1] = 0;
 }
 
+static void
+gsk_gl_render_job_visit_as_fallback (GskGLRenderJob *job,
+                                     GskRenderNode  *node)
+{
+}
+
 static void
 gsk_gl_render_job_visit_color_node (GskGLRenderJob *job,
                                     GskRenderNode  *node)
@@ -545,7 +551,7 @@ gsk_gl_render_job_visit_linear_gradient_node (GskGLRenderJob *job,
     }
   else
     {
-      //render_fallback_node (job, node);
+      gsk_gl_render_job_visit_as_fallback (job, node);
     }
 }