The OP’s post is not about installing Chrome or not, but with the promotion of it by avast.

I’ve already said it in another thread.
It is all about the money.
If Chrome was even close as safe as avast (at least) is trying to make people believe, there would be no reason at all for avast to develop the SafeZone browser.
Fact is also that Chrome never was as safe as Google, avast and others claim(ed).
Have a look at the Secunia advisories.

It is plain and simple.
Of you don’t want the ads for Chrome (provided by avast), stay away from avast completely.
Don’t use their software, don’t visit any of the avast sites etc.