This is a reland of commit a1cfc693af
The original commit was reverted do to `ModuleNotFoundError`s. I believe this was due to not specifying `metadata` to be part of the `depot_tools` recipe bundle. I have updated `.gitattributes` for this, and also added `__init__.py` files.
I will put the changes to `presubmit_canned_checks.py` in a later CL, once I can confirm `metadata` is being bundled.
Original change's description:
> [ssci] Added CheckChromiumMetadataFiles in presubmit_canned_checks
>
> Bug: b:277147404
> Change-Id: I14a2f11b256bc85fdfe225443ef533c38463ca3e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4796694
> Reviewed-by: Gavin Mak <gavinmak@google.com>
> Reviewed-by: Rachael Newitt <renewitt@google.com>
> Commit-Queue: Anne Redulla <aredulla@google.com>
Bug: b:277147404
Change-Id: Ibd9efd5970a5393c157ca8763f97064d7c167803
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4803385
Reviewed-by: Rachael Newitt <renewitt@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Anne Redulla <aredulla@google.com>
Anne Redulla