Break html_tests.dart into multiple tests

client/tests/client/html/XHRTest.dart

Index: client/tests/client/html/XHRTest.dart
diff --git a/client/tests/client/html/XHRTests.dart b/client/tests/client/html/XHRTest.dart
similarity index 76%
rename from client/tests/client/html/XHRTests.dart
rename to client/tests/client/html/XHRTest.dart
index be489787e97b6d22885ff3725875a55dd8300690..744bf58a6e353cb8b0d05bb56bfeb48ce7f4d29a 100644
--- a/client/tests/client/html/XHRTests.dart
+++ b/client/tests/client/html/XHRTest.dart
@@ -2,8 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+#library('XHRTest');
+#import('../../../../lib/unittest/unittest.dart');
+#import('../../../../lib/unittest/html_config.dart');
+#import('dart:html');
+
+main() {
+  useHtmlConfiguration();
 
-void testXHR() {
   print(window.location.href);
   asyncTest('XHR', 1, () {
     XMLHttpRequest xhr = new XMLHttpRequest();