Use lastUpdateMillis of an apex for ART versioning.

Test: m
Bug: 192647837
Merged-In: Ide7e5a1dbfe85c679313bb6c8e6788137b138f42
(cherry picked from commit ef10f42bf21cddff00972c8b47aaf79528cbe3b5)
Change-Id: Id70f75752cb80c6625ab1f8b8cde4c0f00ccd58d
1 file changed