The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/f7a79859831c2f6257fe8dcdfeb6017a9561448d

commit f7a79859831c2f6257fe8dcdfeb6017a9561448d
Author: Roberto Carrillo <robertocn@google.com>
Date: Thu Sep 21 22:25:40 2017

[cr-audit-commits] Set timeout for audits.

Cron jobs have a 10 minute hard limit. By setting a 5 minute timeout for
audits, we attempt having enough time to save partial results i.e. if
some of the commits were correctly audited within the allotted time.

R=iannucci,stgao
BUG= 766023 

Change-Id: I82ae06b7eccb87f1d601831b90a6f60e4b195eb0
Reviewed-on: https://chromium-review.googlesource.com/677568
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Roberto Carrillo <robertocn@chromium.org>

[modify] https://crrev.com/f7a79859831c2f6257fe8dcdfeb6017a9561448d/go/src/infra/appengine/cr-audit-commits/app/commit_auditor.go