Dart: Fix conversion of identifiers to lowerCamelCase.

mojo/dart/embedder/io/internet_address_patch.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 //
 // Implementation of InternetAddress for Mojo.
 //
 
 patch class InternetAddress {
    /* patch */ static InternetAddress get LOOPBACK_IP_V4 {
@@ skipping 170 matching lines @@
 
   // TODO(johnmccutchan): This should be implemented in Dart.
   static Uint8List _parse(String address) native "InternetAddress_Parse";
 }
 
 NetAddressFamily _internetAddressTypeToAddressFamily(InternetAddressType type) {
   if (type == null) {
     return NetAddressFamily.unspecified;
   }
   if (type == InternetAddressType.IP_V4) {
-    return NetAddressFamily.ipV4;
+    return NetAddressFamily.ipv4;
   } else if (type == InternetAddressType.IP_V6) {
-    return NetAddressFamily.ipV6;
+    return NetAddressFamily.ipv6;
   }
   return NetAddressFamily.unspecified;
 }
 
 class _MojoInternetAddress {
   static Future _lookup(String host, InternetAddressType type) async {
     HostResolverProxy hostResolver = _getHostResolver();
     var family = _internetAddressTypeToAddressFamily(type);
     var response = await hostResolver.ptr.getHostAddresses(host, family);
     _NetworkService._throwOnError(response.result);
     var numAddresses = response.addresses.length;
     var r = new List(numAddresses);
     for (var i = 0; i < numAddresses; i++) {
       r[i] = _NetworkServiceCodec._fromNetAddress(response.addresses[i]);
     }
     return r;
   }
 }