Adds SecurityContext.usePrivateKeyBytes

tests/standalone/io/https_server_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:async";
 import "dart:io";
 import "dart:isolate";
 
 import "package:expect/expect.dart";
 
 InternetAddress HOST;
 
 String localFile(path) => Platform.script.resolve(path).toFilePath();
+List<int> readLocalFile(path) => (new File(localFile(path))).readAsBytesSync();
 
 SecurityContext serverContext = new SecurityContext()
   ..useCertificateChain(localFile('certificates/server_chain.pem'))
-  ..usePrivateKey(localFile('certificates/server_key.pem'),
-                  password: 'dartdart');
+  ..usePrivateKeyAsBytes(readLocalFile('certificates/server_key.pem'),
+                         password: 'dartdart');
 
 SecurityContext clientContext = new SecurityContext()
   ..setTrustedCertificates(file: localFile('certificates/trusted_certs.pem'));
 
 void testListenOn() {
   void test(void onDone()) {
     HttpServer.bindSecure(HOST,
                           0,
                           serverContext,
                           backlog: 5).then((server) {
@@ skipping 69 matching lines @@
   });
 }
 
 void main() {
   InternetAddress.lookup("localhost").then((hosts) {
     HOST = hosts.first;
     testListenOn();
     testEarlyClientClose();
   });
 }