[mutter] xwayland: Don't queue frame callbacks when role assigned

[Jonas Ådahl <jadahl src gnome org>]

commit 4fccc903b5f75999bc59e86cfd2949050386e8aa
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon Dec 9 15:46:04 2019 +0100

    xwayland: Don't queue frame callbacks when role assigned
    
    'xwayland: Do not queue frame callbacks unconditionally' changed the
    frame callback behavior of Xwayland surfaces so that they behave the
    same way as other actor surfaces (e.g. xdg-shell ones), except for the
    case when they are initially assigned.
    
    Remove this special casing as well including the now incorrect comment,
    so that the Xwayland surfaces behave the same as the others in this
    regard also when assigning.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/964

 src/wayland/meta-xwayland.c | 19 -------------------
 1 file changed, 19 deletions(-)
---
diff --git a/src/wayland/meta-xwayland.c b/src/wayland/meta-xwayland.c
index 06a1ea368..23e260bce 100644
--- a/src/wayland/meta-xwayland.c
+++ b/src/wayland/meta-xwayland.c
@@ -854,24 +854,6 @@ meta_xwayland_shutdown (MetaXWaylandManager *manager)
     }
 }
 
-static void
-xwayland_surface_assigned (MetaWaylandSurfaceRole *surface_role)
-{
-  MetaWaylandSurface *surface =
-    meta_wayland_surface_role_get_surface (surface_role);
-  MetaWaylandSurfaceRoleClass *surface_role_class =
-    META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_surface_role_xwayland_parent_class);
-
-  /* See comment in xwayland_surface_commit for why we reply even though the
-   * surface may not be drawn the next frame.
-   */
-  wl_list_insert_list (&surface->compositor->frame_callbacks,
-                       &surface->pending_frame_callback_list);
-  wl_list_init (&surface->pending_frame_callback_list);
-
-  surface_role_class->assigned (surface_role);
-}
-
 static MetaWaylandSurface *
 xwayland_surface_get_toplevel (MetaWaylandSurfaceRole *surface_role)
 {
@@ -935,7 +917,6 @@ meta_wayland_surface_role_xwayland_class_init (MetaWaylandSurfaceRoleXWaylandCla
 
   object_class->finalize = xwayland_surface_finalize;
 
-  surface_role_class->assigned = xwayland_surface_assigned;
   surface_role_class->get_toplevel = xwayland_surface_get_toplevel;
 
   actor_surface_class->get_geometry_scale = xwayland_surface_get_geometry_scale;