Code review comment for lp:~brandontschaefer/mir/update-pointer-confinement-v2

+ // We get that a resized_to happened, but we've to wait a little bit for the seat to be updated from the
+ // observer it self. The order of the observers are not guaranteed
+ std::this_thread::sleep_for(1s);

We should use a Signal to avoid waiting longer than necessary. C.f. resized_signaled