GitLab

a unit test to make sure this is always the case. It turns out
-isZoomed can sometimes return YES for a docked window, which
sometimes results in the window becoming undocked on the next restart.
Please read the long entry in the bug report for a complete explanation
of how the change fixes the problem.

BUG=452976

Review URL: https://codereview.chromium.org/1055893003

Cr-Commit-Position: refs/heads/master@{#323928}