Adds SecurityContext.usePrivateKeyBytes

tests/standalone/io/raw_secure_server_socket_test.dart

Index: tests/standalone/io/raw_secure_server_socket_test.dart
diff --git a/tests/standalone/io/raw_secure_server_socket_test.dart b/tests/standalone/io/raw_secure_server_socket_test.dart
index 560722f7a589a112ac9e4f0539e4c8be539727fe..f67fef07fcb78d3b39ab38be0a891dcf8e82d719 100644
--- a/tests/standalone/io/raw_secure_server_socket_test.dart
+++ b/tests/standalone/io/raw_secure_server_socket_test.dart
@@ -15,11 +15,12 @@ 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()
   ..useCertificateChain(localFile('certificates/server_chain.pem'))
-  ..usePrivateKey(localFile('certificates/server_key.pem'),
-                  password: 'dartdart');
+  ..usePrivateKeyAsBytes(readLocalFile('certificates/server_key.pem'),
+                       password: 'dartdart');
 
 SecurityContext clientContext = new SecurityContext()
   ..setTrustedCertificates(file: localFile('certificates/trusted_certs.pem'));
@@ -577,10 +578,8 @@ runTests() {
   context.useCertificateChain(chain);
   testSimpleConnectFail(context, false);
   testSimpleConnectFail(context, true);
-  var key =
-      Platform.script.resolve('certificates/untrusted_server_key.pem')
-       .toFilePath();
-  context.usePrivateKey(key, password: 'dartdart');
+  var key = 'certificates/untrusted_server_key.pem';
+  context.usePrivateKeyAsBytes(readLocalFile(key), password: 'dartdart');
   testSimpleConnectFail(context, false);
   testSimpleConnectFail(context, true);
   testServerListenAfterConnect();