(i) is now the system's app notification info panel,
allowing you to block, prioritize, and things like
that.
(gear) is new; it will appear only if your package has a
notification settings activity of its own. If the user
taps this you'll be launched with some useful extras:
notification_id and notification_tag, matching the id
and tag of the notification the user longpressed.
Bug: 17005733
Change-Id: Ib09264c2564152ab27e744c47ed87a0e9223656f
