This CL adds a new function `CheckChromiumDependencyMetadata` in
`presubmit_canned_checks.py`. It can be used to check that files satisfy
the format defined by `README.chromium.template`
(https://chromium.googlesource.com/chromium/src/+/main/third_party/README.chromium.template).
The code for metadata validation can be found in `//metadata`. Note that
all metadata validation issues will be returned as warnings only for
now, while the quality of metadata is being uplifted.
Bug: b:277147404
Change-Id: Iacf1b3a11219ab752549f6dc6e882c93c0fbe780
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4812578
Commit-Queue: Anne Redulla <aredulla@google.com>
Reviewed-by: Rachael Newitt <renewitt@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
