Adds SecurityContext.setClientAuthoritiesBytes

tests/standalone/io/secure_server_client_certificate_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.
 
 import "dart:async";
 import "dart:io";
 
 import "package:async_helper/async_helper.dart";
 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()
   ..useCertificateChainBytes(readLocalFile('certificates/server_chain.pem'))
   ..usePrivateKeyBytes(readLocalFile('certificates/server_key.pem'),
                        password: 'dartdart')
   ..setTrustedCertificates(file: localFile('certificates/client_authority.pem'))
-  ..setClientAuthorities(localFile('certificates/client_authority.pem'));
+  ..setClientAuthoritiesBytes(
+      readLocalFile('certificates/client_authority.pem'));
 
 SecurityContext clientCertContext = new SecurityContext()
   ..setTrustedCertificates(file: localFile('certificates/trusted_certs.pem'))
   ..useCertificateChainBytes(readLocalFile('certificates/client1.pem'))
   ..usePrivateKeyBytes(readLocalFile('certificates/client1_key.pem'),
                                        password: 'dartdart');
 
 SecurityContext clientNoCertContext = new SecurityContext()
   ..setTrustedCertificates(file: localFile('certificates/trusted_certs.pem'));
 
@@ skipping 36 matching lines @@
 
 main() async {
   asyncStart();
   HOST = (await InternetAddress.lookup("localhost")).first;
   await testClientCertificate(required: false, sendCert: true);
   await testClientCertificate(required: true, sendCert: true);
   await testClientCertificate(required: false, sendCert: false);
   await testClientCertificate(required: true, sendCert: false);
   asyncEnd();
 }