Is com.com a Google web site?

It looks like there is a typo in the Chrome message. They repeated ".com.com" in the link.

Com.com, according to their site, is set up to take advantage of such typos:

As an example, if a user browses to “example.com.com” the user will see content, information and/or advertisements based off the word “example.”

So, no, com.com is not a Google site, and there does not seem to be an infection. Just a typo in the Chrome message.

As a side note: never dismiss error messages quickly. They exist to give people pause before doing things that might not be safe. In this case, it's an indication that things were not as you expected.