[gtk/cherry-pick-d61c71c3] macos: Actually set the vfuncs

[Benjamin Otte <otte src gnome org>]

commit c0c18459f5bbbe584c5b1f3ae0d35aa23635fd09
Author: Benjamin Otte <otte redhat com>
Date:   Fri Sep 24 22:11:22 2021 +0200

    macos: Actually set the vfuncs
    
    
    (cherry picked from commit d61c71c3780e06cdc13599aa3a334f3124bab276)

 gdk/macos/gdkmacosglcontext.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gdk/macos/gdkmacosglcontext.c b/gdk/macos/gdkmacosglcontext.c
index e959f0e30f..cc0b5fab15 100644
--- a/gdk/macos/gdkmacosglcontext.c
+++ b/gdk/macos/gdkmacosglcontext.c
@@ -514,6 +514,8 @@ gdk_macos_gl_context_class_init (GdkMacosGLContextClass *klass)
   draw_context_class->surface_resized = gdk_macos_gl_context_surface_resized;
 
   gl_class->get_damage = gdk_macos_gl_context_get_damage;
+  gl_class->clear_current = gdk_macos_gl_context_clear_current;
+  gl_class->make_current = gdk_macos_gl_context_make_current;
   gl_class->realize = gdk_macos_gl_context_real_realize;
 
   gl_class->backend_type = GDK_GL_CGL;