Where do I report Chromium bugs?

[Patrick O'Callaghan]

If I copy-and-paste a URL from the location bar in Chromium to the
Evolution composer, Evo inserts the contents of the URL as a mail
attachment, rather than just inserting the URL itself into the message.
At first I thought this was an Evo bug, but it only happens with
Chromium, not with Firefox, Konqueror or even Google Chrome.

Since it's not a Chrome bug, I don't want to waste my time sending it to
the Chrome bugs page, but Chromium doesn't appear to have its own page.

What should I do?

poc