[M59] Block Tifinagh + Latin mix

BUG=chromium:722639
TEST=components_unittests --gtest_filter=*IDNToU*
TBR=abdulsyed@chromium.org


Review-Url: https://codereview.chromium.org/2894313002
Cr-Original-Commit-Position: refs/heads/master@{#474199}
Change-Id: Ia01b85118cb4923a42823174bef4b4327f8c31b4
Reviewed-on: https://chromium-review.googlesource.com/518336
Reviewed-by: Jungshik Shin <jshin@chromium.org>
Cr-Commit-Position: refs/branch-heads/3071@{#726}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
2 files changed