Mock resources used directly by LockdownVpnTracker.

LockdownVpnTracker directly uses resources from
com.android.internal.R. This is acceptable because it's platform
code. But ConnectivityServiceTest uses the LockdownVpnTracker
built from the module source tree, and when that code fetches
resources on a previous Android release, it crashes because the
resource IDs don't exist; non-public resource IDs aren't stable.

Fix this by mocking the resources used by LockdownVpnTracker.

Test: atest ConnectivityCoverageTests
Change-Id: I239a18a38d4f1082f76f5ff1b831c15ee753bdfd
1 file changed