Fixing htm/xhr_cross_origin test.

tests/html/xhr_cross_origin_test.dart

Index: tests/html/xhr_cross_origin_test.dart
diff --git a/tests/html/xhr_cross_origin_test.dart b/tests/html/xhr_cross_origin_test.dart
index 4f4d8bd34a042cb85e1fbca4a629a593b998e87f..3bbb5ca2af94799e3974d9597ea4bc6bead39860 100644
--- a/tests/html/xhr_cross_origin_test.dart
+++ b/tests/html/xhr_cross_origin_test.dart
@@ -50,7 +50,7 @@ main() {
 
   test('XHR.get Cross-domain', () {
     var url = "http://localhost:$port/tests/html/xhr_cross_origin_data.txt";
-    new HttpRequest.get(url, expectAsync1((xhr) {
+    HttpRequest.request(url).then(expectAsync1((xhr) {
       var data = json.parse(xhr.response);
       expect(data, contains('feed'));
       expect(data['feed'], contains('entry'));
@@ -60,7 +60,7 @@ main() {
 
   test('XHR.getWithCredentials Cross-domain', () {
     var url = "http://localhost:$port/tests/html/xhr_cross_origin_data.txt";
-    new HttpRequest.getWithCredentials(url, expectAsync1((xhr) {
+    HttpRequest.request(url, withCredentials: true).then(expectAsync1((xhr) {
       var data = json.parse(xhr.response);
       expect(data, contains('feed'));
       expect(data['feed'], contains('entry'));