Merge changes I968bfa76,Id46f1e5b,Iff9b6212,I6bdb090a

* changes:
  Use TestConnectivityManager in TetheringTest.
  Support building different UpstreamNetworkState test objects.
  Change TetheringTest's UpstreamNetworkMonitor from mock to spy.
  Make TestConnectivityManager usable by other tethering tests.
tree: 0f381312be0bb79e8e3407aa72793dfde9f20048
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING