Add HTTP handler registration to the HTTP server

tests/standalone/src/io/HttpShutdownTest.dart

Index: tests/standalone/src/io/HttpShutdownTest.dart
diff --git a/tests/standalone/src/io/HttpShutdownTest.dart b/tests/standalone/src/io/HttpShutdownTest.dart
index 5d77bd1e91a455bd7636fe32b55a8913c0a2959c..70821bff66afc21be6835d3ae423e9bbd207ab47 100644
--- a/tests/standalone/src/io/HttpShutdownTest.dart
+++ b/tests/standalone/src/io/HttpShutdownTest.dart
@@ -10,7 +10,7 @@ void test1(int totalConnections) {
   // Server which just closes immediately.
   HttpServer server = new HttpServer();
   server.listen("127.0.0.1", 0, totalConnections);
-  server.onRequest = (HttpRequest request, HttpResponse response) {
+  server.defaultRequestHandler = (HttpRequest request, HttpResponse response) {
     response.outputStream.close();
   };
 
@@ -36,7 +36,7 @@ void test2(int totalConnections) {
   // Server which responds without waiting for request body.
   HttpServer server = new HttpServer();
   server.listen("127.0.0.1", 0, totalConnections);
-  server.onRequest = (HttpRequest request, HttpResponse response) {
+  server.defaultRequestHandler = (HttpRequest request, HttpResponse response) {
     response.outputStream.writeString("!dlrow ,olleH");
     response.outputStream.close();
   };
@@ -64,7 +64,7 @@ void test3(int totalConnections) {
   // Server which responds when request body has been received.
   HttpServer server = new HttpServer();
   server.listen("127.0.0.1", 0, totalConnections);
-  server.onRequest = (HttpRequest request, HttpResponse response) {
+  server.defaultRequestHandler = (HttpRequest request, HttpResponse response) {
     request.inputStream.onClosed = () {
       response.outputStream.writeString("!dlrow ,olleH");
       response.outputStream.close();