not sure who should own this, assigning to bettes@, please redirect as needed.


currently we show a notification on Windows when a background app is installed. The notification says:

title: New background app added
body:  MyBackgroundApp will launch at system startup and continue to run in the background even once you've closed all other Google Chrome windows.

We don't need to show this notification on Chrome OS because Chrome is always running. We've never shown the notification on other platforms because we didn't get around to implementing it, but now that we're using the cross-platform NotificationDisplayService we need customized text for Mac and Linux as their behaviors are a bit different from Windows.

As per atwilson@, the behaviors are:

* mac: installing a background app makes chrome launch at startup (add to login items - user can remove it). Does not change behavior because "keep alive after all windows are closed" is the default behavior on Mac

* linux: installing a background app makes chrome stay running after the last window is closed, but does not make chrome launch at system startup

What should the text be? My proposal for Linux is:

title: New background app added
body:  MyBackgroundApp will continue to run in the background even after you've closed all other Google Chrome windows.

I'm not sure how to word Mac because I don't know how to talk about login items. Perhaps:

title: New background app added
body:  Google Chrome has been added to startup(login?) items.