SocketUtils contains system APIs for modules to interact for sockets,
wrapping internal APIs. It should be part of the platform to keep access
to the internal APIs.
This involves splitting NetworkUtils.protectVpn to NetworkUtilsInternal,
since SocketUtils and VpnService are the only users of that method.
The @UnsupportedAppUsage NetworkUtils.protectVpn has low usage
count, and is already available through VpnService.protect.
Bug: 181512874
Test: boots, VPN working
Change-Id: I7028d334975f7536c06afac7a22200c33db707ac
MultinetworkPolicyTracker is part of Connectivity mainline module
which cannot call @hide API to register PhoneStateListener. Thus,
replace it to formal API.
Bug: 171183530
Test: atest FrameworksNetTests
Change-Id: Ib02790623e82726aaada33f559226020d1e0019b
Files that are planned to be part of the connectivity module are grouped
in packages/Connectivity, so they can be built separately and moved in
one operation with their history into packages/modules/Connectivity.
This places the files in the existing framework-connectivity-sources
filegroup instead of the current framework-core-sources filegroup. Both
are used the same way in framework-non-updatable-sources.
Bug: 171540887
Test: m
Change-Id: I62d9d91574ace6f5c4624035d190260c3126b91e
