This makes Chrome on ANGLE work on Linux without obvious bugs.

BUG=angleproject:892

Change-Id: I595ac00a6646cb407941932b0d4f9f020d4cd059
Reviewed-on: https://chromium-review.googlesource.com/282057Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>