Google Chrome Moving to all HTTPS

Yes they have done this for ages and for good reason. They are saying 'this form is asking you to post personal info but it is doing it over the open internet'.

As for site status being affected by not having https, again yes, because your site ownership/status has not been validated in any way. How big the affect is, is hard to say, but like all factors they consider, this is one that will add positively or negatively to your rankings. Like all things google it is not devastating, unless you have something like an unsecure login form, that would be bad. A non secure homepage that has no forms or user input, that is not so bad.