All other properties in the boilerplate are data fields, so we can avoid additional checks.

Bug: 
Change-Id: Ie494329332b0ba646515850b6d267fb05735f0ea
Reviewed-on: https://chromium-review.googlesource.com/517044Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45539}