GitLab

Add Generate DIR_METADATA files and remove metadata from OWNERS
files for //gpu.

R=vmiura@chromium.org

Bug: 1113033
Change-Id: Idd4311b03d41318708b0d260aafc5cb04ffc2ed6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454384Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815404}