Avoid tearing down process groups twice.

The second removal always triggers a warning.

Change-Id: Ieafa8374dbffdaff0d576de004a688cae6f8ac18
Enable native tracking for RS contexts to improve GC behavior.

This should prevent apps from leaking RS contexts as easily.

bug 18579193

Change-Id: I2d943ce4443ce7cb90ebdd3dd37d338eda6df3a2
Fix bugs regarding delay the dispatching of non-wakeup alarms

checkAllowNonWakeupDelayLocked() method determines that delay the dispatching of non-wakeup alarms.
(there are no wakeup alarms and the screen is off, it can delay until the future.)

if there is any pending non-wakeup alarms, non-wakeup alarm delivery time is bigger than nowELAPSED.
but, checkAllowNonWakeupDelayLocked() returns false and non-wakeup alarm is not delay until future.

i think it is necessary to reverse the inequality symbol on "mNextNonWakeupDeliveryTime > nowELAPSED"
if it isn't, Could you let me know when we get ¡°stuck in a loop¡± in the comment of checkAllowNonWakeupDelayLocked () method?

Change-Id: I7e972064547f4d0a9b4175dbd4cf735b4837abfd
Signed-off-by: Minho Choo <minho.choo@lge.com>