arc: Assign hashimoto@ as an owner of mojo related ARC code

BUG=None
TEST=None

Change-Id: Ic9278e5ee1910c1f86f9c32d01349a4eb921fe6b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1535739
Commit-Queue: Yusuke Sato <yusukes@chromium.org>
Auto-Submit: Yusuke Sato <yusukes@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Ryo Hashimoto <hashimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#644125}
1 file changed