Svetoslav Ganov 37fedf8b78 Disable accessibility if all accessibility serivces are disbaled.
Accessibility was kept enabled even if all accessibility services
are disabled (explicitly by the user or removed) which was causing
the system to fire accessibility events that will never be consumed.

Change-Id: Ifb03e786ac0106687252bd1979725ffd724ad1c5
2011-09-14 10:49:08 -07:00
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