Don't use external servers in the tests

tests/standalone/io/https_client_test.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "dart:io";
-import "dart:uri";
-import "dart:isolate";
-
-
-void testGoogleUrl() {
-  int testsStarted = 0;
-  int testsFinished = 0;
-  bool allStarted = false;
-  HttpClient client = new HttpClient();
-
-  void testUrl(String url) {
-    testsStarted++;
-    var requestUri = Uri.parse(url);
-    client.getUrl(requestUri)
-        .then((HttpClientRequest request) => request.close())
-        .then((HttpClientResponse response) {
-          Expect.isTrue(response.statusCode < 500);
-          if (requestUri.path.length == 0) {
-            Expect.isTrue(response.statusCode != 404);
-          }
-          response.listen((data) { }, onDone: () {
-            if (++testsFinished == testsStarted && allStarted) client.close();
-          });
-        })
-        .catchError((error) => Expect.fail("Unexpected IO error: $error"));
-  }
-
-  testUrl('https://www.google.dk');
-  testUrl('https://www.google.dk');
-  testUrl('https://www.google.dk/#q=foo');
-  testUrl('https://www.google.dk/#hl=da&q=foo');
-  allStarted = true;
-}
-
-void testBadHostName() {
-  HttpClient client = new HttpClient();
-  ReceivePort port = new ReceivePort();
-  client.getUrl(Uri.parse("https://some.bad.host.name.7654321/"))
-      .then((HttpClientRequest request) {
-        Expect.fail("Should not open a request on bad hostname");
-      })
-      .catchError((error) {
-        port.close();  // Should throw an error on bad hostname.
-      });
-}
-
-void InitializeSSL() {
-  SecureSocket.initialize();
-}
-
-void main() {
-  testGoogleUrl();
-  testBadHostName();
-  Expect.throws(InitializeSSL);
-}