Add setNoDelay method on Socket/RawSocket.

sdk/lib/io/secure_socket.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.
 
 part of dart.io;
 
 /**
  * A high-level class for communicating securely over a TCP socket, using
  * TLS and SSL. The [SecureSocket] exposes both a [Stream] and an
  * [IOSink] interface, making it ideal for using together with
@@ skipping 465 matching lines @@
     if (bytes > 0) {
       buffer.data.setRange(buffer.start + buffer.length, bytes, data, offset);
       buffer.length += bytes;
     }
     _writeEncryptedData();  // Tries to flush all pipeline stages.
     return bytes;
   }
 
   X509Certificate get peerCertificate => _secureFilter.peerCertificate;
 
+  bool setOption(SocketOption option, bool enabled) {
+    if (_socket == null) return false;
+    return _socket.setOption(option, enabled);
+  }
+
   void _writeHandler() {
     if (_status == CLOSED) return;
     _writeEncryptedData();
     if (_filterWriteEmpty && _closedWrite && !_socketClosedWrite) {
       // Close _socket for write, by calling shutdown(), to avoid cloning the
       // socket closing code in shutdown().
       shutdown(SocketDirection.SEND);
     }
     if (_status == HANDSHAKE) {
       try {
@@ skipping 252 matching lines @@
   void destroy();
   void handshake();
   void init();
   X509Certificate get peerCertificate;
   int processBuffer(int bufferIndex);
   void registerBadCertificateCallback(Function callback);
   void registerHandshakeCompleteCallback(Function handshakeCompleteHandler);
 
   List<_ExternalBuffer> get buffers;
 }