* Alpine Linux (community port) - https://git.alpinelinux.org/aports/tree/community/chromium/A...
* Arch Linux (svntogit, AUR) - https://github.com/archlinux/svntogit-packages/blob/1e8f3fe7... - https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=chrom...
* Fedora Linux - https://src.fedoraproject.org/rpms/chromium/blob/e78656ce58d...
* Gentoo - https://github.com/gentoo/gentoo/blob/9acf51b665b6f4b5b97edb...
* OpenSuSE - https://build.opensuse.org/package/view_file/openSUSE:Factor...
* Slackware - http://www.slackware.com/~alien/slackbuilds/chromium/build/c...
* Ubuntu, Linux Mint (Canonincal Chromium Snap) - https://git.launchpad.net/~chromium-team/chromium-browser/+g...
[1] https://developers.google.com/terms (specifically: "You will only access (or attempt to access) an API by the means described in the documentation of that API. If Google assigns you developer credentials (e.g. client IDs), you must use them with the applicable APIs. You will not misrepresent or mask either your identity or your API Client's identity when using the APIs or developer accounts." and "Developer credentials (such as passwords, keys, and client IDs) are intended to be used by you and identify your API Client. You will keep your credentials confidential and make reasonable efforts to prevent and discourage other API Clients from using your credentials. Developer credentials may not be embedded in open source projects.")
[2] https://www.chromium.org/developers/how-tos/api-keys (specifically: "Note that the keys you have now acquired are not for distribution purposes and must not be shared with other users.")