Adds SecurityContext.setTrustedCertificatesBytes

tests/standalone/io/regress_21160_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 "package:expect/expect.dart";
 import "package:path/path.dart";
 import "package:async_helper/async_helper.dart";
 
 import "dart:async";
 import "dart:io";
 import "dart:typed_data";
 
 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');
+  ..useCertificateChainSync(localFile('certificates/server_chain.pem'))
+  ..usePrivateKeySync(localFile('certificates/server_key.pem'),
+                      password: 'dartdart');
 
 SecurityContext clientContext = new SecurityContext()
-  ..setTrustedCertificates(file: localFile('certificates/trusted_certs.pem'));
+  ..setTrustedCertificatesSync(localFile('certificates/trusted_certs.pem'));
 
 // 10 KiB of i%256 data.
 Uint8List DATA = new Uint8List.fromList(
     new List.generate(10 * 1024, (i) => i % 256));
 
 Future<SecureServerSocket> startServer() {
   return SecureServerSocket.bind("localhost",
                                  0,
                                  serverContext).then((server) {
     server.listen((SecureSocket request) async {
@@ skipping 39 matching lines @@
     Expect.fail('Unexpected error: $e');
   }, onDone: () {
     Expect.equals(body.length, DATA.length);
     for (int i = 0; i < body.length; i++) {
       Expect.equals(body[i], DATA[i]);
     }
     server.close();
     asyncEnd();
   });
 }