Rolls back fix of SecurityContext method names.

tests/standalone/io/secure_client_raw_server_test.dart

Index: tests/standalone/io/secure_client_raw_server_test.dart
diff --git a/tests/standalone/io/secure_client_raw_server_test.dart b/tests/standalone/io/secure_client_raw_server_test.dart
index 00ea2dc45399bb12e21de610f501fedc71dadb21..e8cb63d6ee5df909cd6a942bac25b4d3fb104295 100644
--- a/tests/standalone/io/secure_client_raw_server_test.dart
+++ b/tests/standalone/io/secure_client_raw_server_test.dart
@@ -16,12 +16,12 @@ import "package:expect/expect.dart";
 String localFile(path) => Platform.script.resolve(path).toFilePath();
 
 SecurityContext serverContext = new SecurityContext()
-  ..useCertificateChainSync(localFile('certificates/server_chain.pem'))
-  ..usePrivateKeySync(localFile('certificates/server_key.pem'),
-                      password: 'dartdart');
+  ..useCertificateChain(localFile('certificates/server_chain.pem'))
+  ..usePrivateKey(localFile('certificates/server_key.pem'),
+                  password: 'dartdart');
 
 SecurityContext clientContext = new SecurityContext()
-  ..setTrustedCertificatesSync(localFile('certificates/trusted_certs.pem'));
+  ..setTrustedCertificates(localFile('certificates/trusted_certs.pem'));
 
 InternetAddress HOST;
 Future<RawSecureServerSocket> startEchoServer() {