Weird, the bug was not updated. Here is the CL that landed for this:

[Payments] Display region codes in shipp. addr. editor on Desktop.

Bug:  734606 
Change-Id: I44d32ec439a283c6a3d45c7d001c47df9afb7af3
Reviewed-on: https://chromium-review.googlesource.com/539975
Reviewed-by: mahmadi <mahmadi@chromium.org>
Reviewed-by: Anthony Vallee-Dubois <anthonyvd@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#480559}

This bug requires manual review: M60 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), josafat@(ChromeOS), bustamante@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot