- Restrict unprivileged apps to use NetworkRequest.Builder#setSignalStrength. - Remove the "throws NullPointerException" in CaptivePortalProbeSpec constructor. - Remove the null check in LinkProperties. - Add annotataion into all ConnectivityManager.NetworkCallback methods. Change-Id: Id275cac1d6a30d7515cd7b113394f5e8a0179314 Fix: 129097486 Test: atest FrameworksNetTests