A) Hide icons corresponding to the active panel with a
downward push animation. Notes:
1. this animation will now apply any time the status bar
icons are disabled via DISABLE_NOTIFICATION_ICONS.
2. DISABLE_SYSTEM_INFO will now only hide the right hand
icons (system status icons, battery, clock). But you
weren't using it anyway, right?
B) Stop pulling down the panels in response to just a touch
on the status bar. (That should never have worked.) In
general, we now require that a fling proceed more than
10dp to be treated as a fling with velocity (as opposed
to a v=0 fling, or "let-go").
C) If a panel is pulled down more than halfway and then let
go with v=0, it is expanded. If less than halfway, it is
contracted. (Helps fix B) above, plus it just makes good
sense.)
Bug: 7211541 (A)
Bug: 7227237 (B)
Bug: 7228541 (B)
Change-Id: I5662269b753376804bf629239835dc212716d5c3