timeouts, but when a relative timeout is provided, the timeout is an
absolute timeout against a steady clock (when possible). This allows
methods that return relative timeouts to automatically recompute the
remaining duration, for instance, on suprious wakeups.

PiperOrigin-RevId: 516304139
Change-Id: I7d739cb50dd749eba5dba7ac6c34d18dc53703ed