Jonas Ådahl 7eb20b2c39 window: Add some trace instrumentation to implement show/hide
Showing and hiding caused several second stalls, and still cause large
enough stalls to cause missed frames, makes this visible to Sysprof.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1616>
2020-12-01 11:41:11 +00:00
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