Rolls back fix of SecurityContext method names.

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();
 
 SecurityContext serverContext(String certType, String password) =>
   new SecurityContext()
-  ..useCertificateChainSync(
-      localFile('certificates/server_chain.$certType'), password: password)
-  ..usePrivateKeySync(
-      localFile('certificates/server_key.$certType'), password: password)
-  ..setTrustedCertificatesSync(localFile(
+  ..useCertificateChain(localFile(
+      'certificates/server_chain.$certType'), password: password)
+  ..usePrivateKey(localFile(
+      'certificates/server_key.$certType'), password: password)
+  ..setTrustedCertificates(localFile(
       'certificates/client_authority.$certType'), password: password)
-  ..setClientAuthoritiesSync(localFile(
+  ..setClientAuthorities(localFile(
       'certificates/client_authority.$certType'), password: password);
 
 SecurityContext clientCertContext(String certType, String password) =>
   new SecurityContext()
-  ..setTrustedCertificatesSync(
-      localFile('certificates/trusted_certs.$certType'), password: password)
-  ..useCertificateChainSync(
-      localFile('certificates/client1.$certType'), password: password)
-  ..usePrivateKeySync(
-      localFile('certificates/client1_key.$certType'), password: password);
+  ..setTrustedCertificates(localFile(
+      'certificates/trusted_certs.$certType'), password: password)
+  ..useCertificateChain(localFile(
+      'certificates/client1.$certType'), password: password)
+  ..usePrivateKey(localFile(
+      'certificates/client1_key.$certType'), password: password);
 
 SecurityContext clientNoCertContext(String certType, String password) =>
   new SecurityContext()
-  ..setTrustedCertificatesSync(localFile(
+  ..setTrustedCertificates(localFile(
       'certificates/trusted_certs.$certType'), password: password);
 
 Future testClientCertificate(
     {bool required, bool sendCert, String certType, String password}) async {
   var server = await SecureServerSocket.bind(HOST, 0,
       serverContext(certType, password),
       requestClientCertificate: true,
       requireClientCertificate: required);
   var clientContext = sendCert ?
       clientCertContext(certType, password) :
@@ skipping 46 matching lines @@
   await testClientCertificate(
       required: false, sendCert: true, certType: 'p12', password: 'dartdart');
   await testClientCertificate(
       required: true, sendCert: true, certType: 'p12', password: 'dartdart');
   await testClientCertificate(
       required: false, sendCert: false, certType: 'p12', password: 'dartdart');
   await testClientCertificate(
       required: true, sendCert: false, certType: 'p12', password: 'dartdart');
   asyncEnd();
 }