[gtk/wip/chergert/for-4-6: 33/56] macos: use parent frame clock again

[Christian Hergert <chergert src gnome org>]

commit c2d1a21f9c38aa467346629fa11354661449dd77
Author: Christian Hergert <christian hergert me>
Date:   Wed Mar 2 00:42:09 2022 -0800

    macos: use parent frame clock again
    
    We do actually need the parent frame clock here because it is the way we
    ensure that we get layout called for our popup surfaces at the same time
    as the parent surface.

 gdk/macos/gdkmacossurface.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/gdk/macos/gdkmacossurface.c b/gdk/macos/gdkmacossurface.c
index 385775fe58..8a1cf3747f 100644
--- a/gdk/macos/gdkmacossurface.c
+++ b/gdk/macos/gdkmacossurface.c
@@ -621,7 +621,10 @@ _gdk_macos_surface_new (GdkMacosDisplay   *display,
 
   g_return_val_if_fail (GDK_IS_MACOS_DISPLAY (display), NULL);
 
-  frame_clock = _gdk_frame_clock_idle_new ();
+  if (parent != NULL)
+    frame_clock = g_object_ref (parent->frame_clock);
+  else
+    frame_clock = _gdk_frame_clock_idle_new ();
 
   switch (surface_type)
     {