How do you put the blue dot on pinned Chrome tabs?

Question

Certain google sites such as GMail, Google Voice, and others show a little blue dot when they update in the background (when the window doesn\'t have focus). This is definitely

Answer 1

Apparently tabs flash automatically when you change the title, this does not work for pinned tabs however.

EDIT

Oh wait, it does work for pinned tabs, but not apps.

Source