From Manage your online reputation
Nowadays, more and more personal information surfaces on the web. For example, some of your friends might mention your name in a social network or tag you on online photos, or your name could appear in blog posts or articles.
Google Search is often the first place people look for information that's published about ...
Chrome 'Other search engines' appear to be synced across devices when a user is logged into their Google account.
This may be tested by creating a new user on the computer, and logging into the Chrome browser on a newly downloaded instance of Chrome.