This should reduce our log sizes significantly. Will upstream the fix
to dEQP and then remove the custom workaround once we roll.

BUG=chromium:713196

Change-Id: I0ddb678bf5256bd5f05782ca40d49501e84e4cae
Reviewed-on: https://chromium-review.googlesource.com/483047Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>