Lorenzo Colitti 132fe8d27d Use BaseNetworkObserver in Tethering.
Tethering currently inherits from the AIDL interface
INetworkManagementEventObserver, so it has to provide no-op
implementations of all the interface's methods. Inherit from
BaseNetworkObserver and get rid of the no-ops.

[Cherry-pick of f4e90eac87bc31611ddd80c46fc924d35ce66c1c]

Bug: 9180552
Change-Id: I74859b0d77951005651aaaa418185857e40eeedb
2013-11-25 17:24:30 +09:00
..