CI metrics show that this test was flaky ~38 time in 3 days.
The problem is old: after we get a surface, a window manager can still
decide to re-position the window.
The fix is to simply send the touch event in a position where it is sure
to hit the window (usually the offset is the title bar height).
The blacklisting seems to not have worked, I could reproduce the failure
on a linux/xcb machine.
Change-Id: I5229fe020ba75c984fd3b6c322ad00d769707573
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
7f80c96432