This doesn't seem to cause the video-related WebGL test failures anymore
that were previously seen.

BUG=497445

Change-Id: I705ae8735823ab7f4b26cf7696cdb746936e4447
Reviewed-on: https://chromium-review.googlesource.com/308001
Tryjob-Request: Kenneth Russell <kbr@chromium.org>
Tested-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>