[popover-light-dismiss.html]
[Scrolling within a popover should not close the popover]
expected:
if (os == "linux") and not tsan and fission and asan: [PASS, FAIL]
if (os == "linux") and not tsan and not fission: [PASS, FAIL]
if (os == "linux") and tsan: [PASS, FAIL]
[Pointer down inside invoker and up outside that invoker shouldn't dismiss popover]
expected: FAIL