This also refactors ConnectivityService a bit towards supporting multiple simultaneous connections by making each a seem like a seperate Network with it's own stateTracker, etc.
Also adds tracking of process death to clean orphaned startUsingNetworkFeature features.
PhoneStateListener events like LISTEN_CALL_STATE_CHANGED,
have privacy information like phone numbers and hence,
need to be protected with a permission. The permission
READ_PHONE_STATE is used for this purpose. Use the permission
trick to ensure backward compatability.
ACCESS_FINE_LOCATION should imply ACCESS_COARSE_LOCATION, so either of these
permissions should be sufficient to allow TelephonyManager.getCellLocation().
Signed-off-by: Mike Lockwood <lockwood@android.com>
