Fix ErrorUtils.FormatErrorMessage_Death in official builds.

ErrorUtils.FormatErrorMessage_Death fails on official builds because
failure messages aren't passed to CHECK in official builds. Modify the death
regex for the test in official builds and fix the test.

BUG=934831

Change-Id: I4b301410ce990e3ced014c5fa82c42d1fea98cce
Reviewed-on: https://chromium-review.googlesource.com/c/1483938
Auto-Submit: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634845}
1 file changed