Windows 7: Google Chrome Bookmarks Deleted, How to Recover?!

Hey everyone,

By accident, I was signed into my Gmail account from another computer, and my brother deleted all of my bookmarks, which obviously, affected my bookmarks as well.

I searched the web, and following what they tell me:
C:\Users\NAME\AppData\Local\Google\Chrome\User Data\Default, I still can't restore my Bookmarks since my bro had already closed Chrome, which would then save an Backup which is empty of bookmarks.

I was wondering if there is any other way to recover my bookmarks, or are they lost forever?
One idea I was thinking about is using my System Image I created from a few months back. Would this restore my Bookmarks? I am thinking prob. not since Gmail is a cloud storage....



At least it's an new lesson learned....backup EVERYTHING!

What does being signed in to gmail have to do with your bookmarks/favorites. It`s pretty hard to go in and delete your bookmarks by ACCIDENT.

Which browser were they deleted from ?