[DevTools] Some additions to owners files.

Change-Id: I9be6813d571c55866db67335e42f5cea1f3b4186
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1605165
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658631}
2 files changed