GitLab

Generate DIR_METADATA files and remove metadata from OWNERS
files for //ui/base.

R=thakis@chromium.org

Bug: 1113033
Change-Id: Ic45fa9c79f34412f38dd2632123c2d819f1692f4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2477442Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819240}