The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/ac7428e9eab23d4286707c869ff05570f8992c1c

commit ac7428e9eab23d4286707c869ff05570f8992c1c
Author: Sean McCullough <seanmccullough@chromium.org>
Date: Fri Sep 08 19:57:19 2017

[som] Color infra failures purple

Bug:763429
Change-Id: If553d23c470e36f51de1be9a169d78cd45dde728
Reviewed-on: https://chromium-review.googlesource.com/658140
Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: Sean McCullough <seanmccullough@chromium.org>

[modify] https://crrev.com/ac7428e9eab23d4286707c869ff05570f8992c1c/go/src/infra/appengine/sheriff-o-matic/frontend/elements/som-extension-build-failure/som-extension-build-failure.html