updateNonSystemOverlayWindowsVisibilityIfNeeded on relayoutWindow

If PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS changed on
relayoutWindow() then updateNonSystemOverlayWindowsVisibilityIfNeeded

Change-Id: Ifc8b77d70e3c25acf28eab86786ce5929e2ba3f8
Fixes: 73727992
Test: manual steps from bug
1 file changed