Add cross-origin test with credentials.

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 d39af2c85e388bcfdb6e6e60f0f352ff50b9f429..ade368e507b49f5405c82b885cff96ba90be12cc 100644
--- a/tests/html/xhr_cross_origin_test.dart
+++ b/tests/html/xhr_cross_origin_test.dart
@@ -12,7 +12,7 @@ main() {
   useHtmlConfiguration();
 
   test('XHR Cross-domain', () {
-    var url = "http://localhost:9876/tests/html/xhr_cross_origin_data.txt";
+    var url = "http://localhost:5432/tests/html/xhr_cross_origin_data.txt";

[Mads Ager (google), 2013/01/02 10:09:50]

It would be cool to avoid the hard-coded port number here. If we start two
servers on any available port at the start of the test script, we can load the
tests with a URI that provides all of this information in the browser location
object. Something like:

http://localhost:${port1}/resource?crossOriginPort=${port2}

Then all tests can be written in a port number independent way. Resources can be
loaded relative to the current location and the cross origin port can be
extracted from the parameters.

[Emily Fortuna, 2013/01/04 00:51:03]

Done.

     var xhr = new HttpRequest();
     xhr.open('GET', url, true);
     var validate = expectAsync1((data) {
@@ -31,7 +31,7 @@ main() {
   });
 
   test('XHR.get Cross-domain', () {
-    var url = "http://localhost:9876/tests/html/xhr_cross_origin_data.txt";
+    var url = "http://localhost:5432/tests/html/xhr_cross_origin_data.txt";
     new HttpRequest.get(url, expectAsync1((xhr) {
       var data = JSON.parse(xhr.response);
       expect(data, contains('feed'));
@@ -39,4 +39,14 @@ main() {
       expect(data, isMap);
     }));
   });
+
+  test('XHR.getWithCredentials Cross-domain', () {
+    var url = "http://localhost:5432/tests/html/xhr_cross_origin_data.txt";
+    new HttpRequest.getWithCredentials(url, expectAsync1((xhr) {
+      var data = JSON.parse(xhr.response);
+      expect(data, contains('feed'));
+      expect(data['feed'], contains('entry'));
+      expect(data, isMap);
+    }));
+  });
 }