[buganizer] Migrate DIR_METADATA in third_party

Migrate all DIR_METADATA in third_party with folder
starting with a*.

Verify components with http://b/components/{id} or at
go/chrome-on-buganizer-prod-components.

Bug: chromium:1518875
Change-Id: I2b8d95a709dc9707d401b3230ff31c3e0c12d36e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5288114
Reviewed-by: Rick Byers <rbyers@chromium.org>
Commit-Queue: Jeff Yoon <jeffyoon@google.com>
Cr-Commit-Position: refs/heads/main@{#1259391}
NOKEYCHECK=True
GitOrigin-RevId: 639aaa414cb016670b57cddee1438da5bcb0a1ae
1 file changed