This patch moves ipconnectivity.proto and companion serialization classes from /vendor/google/app/ConnectivityMetrics into the framework services jar. This will allow to implement a dumpsys interface for IpConnectivity metrics events defined in android.net.metrics that output metrics as a serialized proto. Bug: 31254800 Change-Id: Ia4449103fd7222c9d899352fea2dce47a790a49c