Add xiaochengh to core/layout/OWNERS

Change-Id: I26da8a255d5767ce26f2b2b5b0a96f3e40fe751d
Reviewed-on: https://chromium-review.googlesource.com/c/1407443
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Christian Biesinger <cbiesinger@chromium.org>
Commit-Queue: Emil A Eklund <eae@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622212}
1 file changed