macos: do not inherit parents frame clock

Windows can end up on different monitors despite having a parent or
transient-for ancestor. We want them to be driven by the CVDisplayLink
for the best-monitor, and so this needs to be unshared.

diff --git a/gdk/macos/gdkmacossurface.c b/gdk/macos/gdkmacossurface.c
index cdc6054bff2a24b33732e7655337dbbe4965831b..d032c37e215b6cc4bb61001a8a222ca45cd34a5a 100644 (file)
--- a/gdk/macos/gdkmacossurface.c
+++ b/gdk/macos/gdkmacossurface.c
@@ -558,10 +558,7 @@ _gdk_macos_surface_new (GdkMacosDisplay   *display,
 
   g_return_val_if_fail (GDK_IS_MACOS_DISPLAY (display), NULL);
 
-  if (parent != NULL)
-    frame_clock = g_object_ref (gdk_surface_get_frame_clock (parent));
-  else
-    frame_clock = _gdk_frame_clock_idle_new ();
+  frame_clock = _gdk_frame_clock_idle_new ();
 
   switch (surface_type)
     {