Implement input and output streams for secure network sockets.

tests/standalone/io/tls_stream_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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // The --short_socket_write option does not work with external server
 // www.google.dk.  Add this to the test when we have secure server sockets.
 // See TODO below.
 
 #import("dart:isolate");
 #import("dart:io");
 
 void main() {
   var testPkcertDatabase =
       new Path.fromNative(new Options().script).directoryPath.append('pkcert/');
   TlsSocket.setCertificateDatabase(testPkcertDatabase.toNativePath());
   // TODO(3593): Use a Dart HTTPS server for this test using TLS server sockets.
   // When we use a Dart HTTPS server, allow --short_socket_write. The flag
   // causes fragmentation of the client hello message, which doesn't seem to
   // work with www.google.dk.
   var tls = new TlsSocket("www.google.dk", 443);
   List<String> chunks = <String>[];
-  tls.onConnect = () {
-    var request_bytes =
-      "GET / HTTP/1.0\r\nHost: www.google.dk\r\n\r\n".charCodes;
-    tls.writeList(request_bytes, 0, 20);
-    tls.writeList(request_bytes, 20, request_bytes.length - 20);
-  };
-  var useReadList;  // Mutually recursive onData callbacks.
-  void useRead() {
-    var data = tls.read();
+  var input = tls.inputStream;
+  var output = tls.outputStream;
+
+  output.write("GET / HTTP/1.0\r\nHost: www.google.dk\r\n\r\n".charCodes);
+  input.onData = () {
+    var data = input.read();
     var received = new String.fromCharCodes(data);
     chunks.add(received);
-    tls.onData = useReadList;
-  }
-  useReadList = () {
-    var buffer = new List(2000);
-    int len = tls.readList(buffer, 0, 2000);
-    var received = new String.fromCharCodes(buffer.getRange(0, len));
-    chunks.add(received);
-    tls.onData = useRead;
   };
-  tls.onData = useRead;
-  tls.onClosed = () {
+  input.onClosed = () {
     String fullPage = Strings.concatAll(chunks);
     Expect.isTrue(fullPage.contains('</body></html>'));
-    tls.close();
+    output.close();
   };
 }