GitLab

Error codes are apparently negative, whereas the histogram enum is
defined with positive values.

Bug: 915679
Change-Id: Ie14569dcb1283b5960f11c94321863537238dae7
Reviewed-on: https://chromium-review.googlesource.com/c/1473170Reviewed-by: Tommi <tommi@chromium.org>
Commit-Queue: Henrik Grunell <grunell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634683}