My Chrome book did not wake up when I opened the lid this morning
It was asking for my old passwords which I could not guess, or the google did not accept. Eventually it let me in by clicking on a button below the old pw, I can't remember what it said.
At that point, it rebuilt Chrome, installing all my add ins. Hopefully it is a one time thing, but you're locked out with no one to contact if you can't log in to your google account.