Merge services into a shared IOService in dart:io, and use a native port.

runtime/bin/secure_socket_patch.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.
 
 patch class SecureSocket {
   /* patch */ factory SecureSocket._(RawSecureSocket rawSocket) =>
       new _SecureSocket(rawSocket);
 
   /* patch */ static void initialize({String database,
                                       String password,
                                       bool useBuiltinRoots: true})
   native "SecureSocket_InitializeLibrary";
 }
 
 
 patch class _SecureFilter {
   /* patch */ factory _SecureFilter() => new _SecureFilterImpl();
-
-  /* patch */ static SendPort _newServicePort()
-      native "SecureSocket_NewServicePort";
 }
 
 
 class _SecureSocket extends _Socket implements SecureSocket {
   _SecureSocket(RawSecureSocket raw) : super(raw);
 
   void set onBadCertificate(bool callback(X509Certificate certificate)) {
     if (_raw == null) {
       throw new StateError("onBadCertificate called on destroyed SecureSocket");
     }
@@ skipping 73 matching lines @@
       native "SecureSocket_RegisterBadCertificateCallback";
 
   void registerHandshakeCompleteCallback(Function handshakeCompleteHandler)
       native "SecureSocket_RegisterHandshakeCompleteCallback";
 
   // This is a security issue, as it exposes a raw pointer to Dart code.
   int _pointer() native "SecureSocket_FilterPointer";
 
   List<_ExternalBuffer> buffers;
 }