SystemUI: Improve HeadsUp expanding performance.

Change-Id: Ifd31caca6d2eb2432772b6a63f6b545f8288f449
test

Change-Id: I10625d91f23bbc9382d978449b43527d2e6327ba
Revert "test"

This reverts commit d323ce0c677bde86de6a65026e2f01ea81d3ea7a.

Change-Id: I1e4d29c29c21639b0362de6285675b033a6fd3b5
test 2

Change-Id: Icfc61488f6a810f993feaf1d12e7101d150e4972
Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>
Revert "test 2"

This reverts commit da35d64a82cd2fd5e885bdc69cf74c2708d4cbf1.

Change-Id: If14b72be3b2d8befcbe00d684d921a68595b1351
QS: Update heads up tile icons

The bell icon for the "on" state look a bit crappy.
Update them too look more lika a bell.

Screenshot: http://goo.gl/rC1VFD

Change-Id: I9a6a54a5ee9ac0100ebf749ee3babe02eb0e2e32
Merge remote-tracking branch 'pac/pac-4.4' into pac-4.4