07e19362de
The "roaming" state of a network really belongs on NetworkCapabilities instead of being published through NetworkInfo.isRoaming(). One major reason is to support developers creating NetworkRequests for a non-roaming network. Watch for any capability changes that network statistics are interested in (either metered or roaming) and notify it to perform an update pass; fixes bug where we previously only triggered on roaming changes. Fix bug in VPNs where metered/roaming capabilities of underlying networks weren't being propagated; this was probably preventing some jobs from running over unmetered networks, and causing other jobs to run over roaming networks! Also passes along link bandwidth information from underlying networks, and propegates any changes to underlying networks. Fix race condition by reading prevNc inside lock. Utility methods correctly calculate min/max link bandwidth values. Test: bit FrameworksNetTests:android.net.,com.android.server.net.,com.android.server.connectivity.,com.android.server.ConnectivityServiceTest Bug: 68397798, 16207332 Change-Id: I3e1a6544c902bf3a79356b72d3616af1fd2b0f49