dart:io | Fix issue involving SecureServerSocket error handling and HttpServer stream cancellation.

tests/standalone/io/secure_server_socket_test.dart

 // Copyright (c) 2013, 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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
 import "package:expect/expect.dart";
@@ skipping 64 matching lines @@
       clientEndFuture.then((clientEnd) {
         clientEnd.close();
         serverEnd.close();
         server.close();
         port.close();
       });
     });
   });
 }
 
-void testSimpleConnectFail(String certificate) {
+void testSimpleConnectFail(String certificate, bool cancelOnError) {
   ReceivePort port = new ReceivePort();
   SecureServerSocket.bind(HOST_NAME, 0, certificate).then((server) {
     var clientEndFuture = SecureSocket.connect(HOST_NAME, server.port)
       .then((clientEnd) {
         Expect.fail("No client connection expected.");
       })
       .catchError((error) {
         Expect.isTrue(error is SocketIOException);
       });
     server.listen((serverEnd) {
       Expect.fail("No server connection expected.");
     },
     onError: (error) {
       Expect.isTrue(error is SocketIOException);
-      clientEndFuture.then((_) => port.close());
-    });
+      clientEndFuture.then((_) {
+        if (!cancelOnError) server.close();
+        port.close();
+      });
+    },
+    cancelOnError: cancelOnError);
   });
 }
 
 void testServerListenAfterConnect() {
   ReceivePort port = new ReceivePort();
   SecureServerSocket.bind(HOST_NAME, 0, CERTIFICATE).then((server) {
     Expect.isTrue(server.port > 0);
     var clientEndFuture = SecureSocket.connect(HOST_NAME, server.port);
     new Timer(const Duration(milliseconds: 500), () {
       server.listen((serverEnd) {
@@ skipping 79 matching lines @@
 main() {
   Path scriptDir = new Path(new Options().script).directoryPath;
   Path certificateDatabase = scriptDir.append('pkcert');
   SecureSocket.initialize(database: certificateDatabase.toNativePath(),
                           password: 'dartdart',
                           useBuiltinRoots: false);
   testSimpleBind();
   testInvalidBind();
   testSimpleConnect(CERTIFICATE);
   testSimpleConnect("CN=localhost");
-  testSimpleConnectFail("not_a_nickname");
-  testSimpleConnectFail("CN=notARealDistinguishedName");
+  testSimpleConnectFail("not_a_nickname", false);
+  testSimpleConnectFail("CN=notARealDistinguishedName", false);
+  testSimpleConnectFail("not_a_nickname", true);
+  testSimpleConnectFail("CN=notARealDistinguishedName", true);
   testServerListenAfterConnect();
   testSimpleReadWrite();
 }