It doesn't look like this was covered much by the mainstream tech sites, but the official page is here,

https://www.google.com/chrome/privacy-on-the-web/

I just checked it myself and at least for me all the settings are set to "Off" by default.

EDIT: Just to make it clear, it's likely I mindlessly turned these Off when first time encountering the notice by Chrome when this was first released (see the comment thread below).