Rationalize Dart mojo and sky package structure

services/dart/dart_apptests/io_internet_address_apptests.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.
 
 library io_internet_address_apptests;
 
 import 'dart:async';
 import 'dart:mojo.io';
 
 import 'package:apptest/apptest.dart';
-import 'package:mojo/public/dart/application.dart';
-import 'package:mojo/public/dart/bindings.dart';
-import 'package:mojo/public/dart/core.dart';
+import 'package:mojo/application.dart';
+import 'package:mojo/bindings.dart';
+import 'package:mojo/core.dart';
 
 tests(Application application, String url) {
   group('InternetAddress Apptests', () {
     test('Parse IPv4', () async {
       var localhost = new InternetAddress('127.0.0.1');
       expect(localhost, equals(InternetAddress.LOOPBACK_IP_V4));
     });
     test('Parse IPv6', () async {
       var localhost = new InternetAddress('0:0:0:0:0:0:0:1');
       expect(localhost, equals(InternetAddress.LOOPBACK_IP_V6));
     });
   });
 }