Rolls back fix of SecurityContext method names.

tests/standalone/io/https_bad_certificate_test.dart

Index: tests/standalone/io/https_bad_certificate_test.dart
diff --git a/tests/standalone/io/https_bad_certificate_test.dart b/tests/standalone/io/https_bad_certificate_test.dart
index d90acd41254db705b0c6115221c6846420d9790c..90c630f693a954228a67f9732f08b45ef39197fd 100644
--- a/tests/standalone/io/https_bad_certificate_test.dart
+++ b/tests/standalone/io/https_bad_certificate_test.dart
@@ -14,9 +14,9 @@ final HOST_NAME = 'localhost';
 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');
 
 class CustomException {}
 
@@ -31,7 +31,7 @@ main() async {
   });
 
   SecurityContext goodContext = new SecurityContext()
-    ..setTrustedCertificatesSync(localFile('certificates/trusted_certs.pem'));
+    ..setTrustedCertificates(localFile('certificates/trusted_certs.pem'));
   SecurityContext badContext = new SecurityContext();
   SecurityContext defaultContext = SecurityContext.defaultContext;