By using a built-in this functions works with SafeStack and doesn't
require an attribute disabling ASan.

BUG=chromium:864705

Change-Id: I898d42c0b39b07300f1679eba11e7f50cad42120
Reviewed-on: https://chromium-review.googlesource.com/1162669Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54912}