src/chromium/web_engine/meta/shards/web_engine_feature_network.shard.cmx

{
    "sandbox": {
        "services": [
            "fuchsia.net.NameLookup",
            "fuchsia.net.interfaces.State",
            "fuchsia.netstack.Netstack",
            "fuchsia.posix.socket.Provider"
        ]
    }
}