The constructor's documentation already had the note saying that we
could apply this optimization, but it wasn't there and looks like it
never was. This only applies to the default constructor, which sets t1
to zero, which is the epoch. This could be a problem for an OS whose
monotonic clock starts with negative values, but I don't know such an OS
exists and this hasn't been a problem so far.
This commit doesn't change the behavior of the old-style, non-
std::chrono getters, because we always transform any negative remaining
time to 0. It is only possible to observe it by asking the remaining
time or the deadline using the std::chrono API.
Change-Id: I6f518d59e63249ddbf43fffd175a3fc2911e91fb
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
8a873c2d6d