Add HttpRequest::requestedUri.

tests/standalone/io/http_server_test.dart

Index: tests/standalone/io/http_server_test.dart
diff --git a/tests/standalone/io/http_server_test.dart b/tests/standalone/io/http_server_test.dart
index b406f7f58d7a367f58c31ac74d5cdd15c30d9527..13cccf9c83a42eb4e3863b805b22a63079d2144d 100644
--- a/tests/standalone/io/http_server_test.dart
+++ b/tests/standalone/io/http_server_test.dart
@@ -109,8 +109,29 @@ void testHttpServerZoneError() {
 }
 
 
+void testAbsoluteUri() {
+  asyncStart();
+  HttpServer.bind("127.0.0.1", 0).then((server) {
+    server.listen((request) {
+      Expect.equals("http://localhost:${server.port}/path?a=b#c",
+                    request.absoluteUri.toString());
+      request.response.close();
+    });
+    HttpClient client = new HttpClient();
+    client.get("localhost", server.port, "/path?a=b#c")
+      .then((request) =>request.close())
+      .then((response) => response.drain())
+      .then((_) {
+        server.close();
+        asyncEnd();
+      });
+  });
+}
+
+
 void main() {
   testListenOn();
   testHttpServerZone();
   testHttpServerZoneError();
+  testAbsoluteUri();
 }