In case you ever needed to synchronize browser preferences between chrome installations on different devices, you can do so unbelieveably easily simply by logging into Chrome using your google account. This Sync feature will allow you to backup settings and apps for easy re-deployment elsewhere!
Why sign in to Chrome – Google Chrome Help.
So for example, if you need to re-install chrome because of a new workstation image deployment, or simply to fix a broken installation and don’t want to lose your bookmarks or saved password, using this Sync feature is very handy.