Use uint16 for port numbers, net/ edition

net/tools/gdig/gdig.cc

Index: net/tools/gdig/gdig.cc
diff --git a/net/tools/gdig/gdig.cc b/net/tools/gdig/gdig.cc
index 179ab78829475eb6166733f1a7d366e138820276..fc756b95b30a60737404a4930ee40d741335dcad 100644
--- a/net/tools/gdig/gdig.cc
+++ b/net/tools/gdig/gdig.cc
@@ -53,7 +53,7 @@ bool StringToIPEndPoint(const std::string& ip_address_and_port,
   if (!net::ParseIPLiteralToNumber(ip, &ip_number))
     return false;
 
-  *ip_end_point = net::IPEndPoint(ip_number, port);
+  *ip_end_point = net::IPEndPoint(ip_number, static_cast<uint16>(port));
   return true;
 }
 
@@ -90,7 +90,7 @@ std::string DnsHostsToString(const DnsHosts& dns_hosts) {
        ++i) {
     const DnsHostsKey& key = i->first;
     std::string host_name = key.first;
-    output.append(IPEndPoint(i->second, -1).ToStringWithoutPort());
+    output.append(IPEndPoint(i->second, 0).ToStringWithoutPort());
     output.append(" ").append(host_name).append("\n");
   }
   return output;