if the location provider does not exist. Instead use the same behavior
as if the provider were disabled in settings
(return false for isProviderEnabled and null from getLastKnownLocation).
This eliminates for a lot of exception handling around some simple
queries to the location manager.
BUG: 2841014
Change-Id: I4fbe0c088e915c90969e13083201dd3e7f4029cb
Signed-off-by: Mike Lockwood <lockwood@android.com>