This is the back-end responsibility now.

Bug: chromium:921338
Change-Id: I6181210a80ec7d635382df74d842d8a899ad2894
Reviewed-on: https://chromium-review.googlesource.com/c/1409405Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>