This is now implemented as a build-time flag.

Change-Id: I10db18725ca6837ae04032725582717233b2c2e5
Reviewed-on: https://chromium-review.googlesource.com/670728Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48063}