Slightly related note:

This seems to be a trend lately in Google's desktop software that I'm not comfortable with. On both my Linux and Mac machines 'ps aux | grep -i chrome' shows background processes running long after I've quit Chrome.

I don't see any GUI options to turn these off (there used to be an option in 'about: flags' that I think was related), and I have to end up killing them from the command line.

Not cool, Google.