see https://bugs.chromium.org/p/chromium/issues/detail?id=637307.

This problem is happening because on release branches it may happen that Chrome is not uprevved anymore but they continue to to the builds.
After 7 days, the AFDOUpdateEbuild state may complain that the profile is too old. 
It should not complain if the version of chrome has not changed in those 7 days.