Fixing Location.origin to work on non-WebKit browsers.

tests/html/location_test.dart

Index: tests/html/location_test.dart
diff --git a/tests/html/location_test.dart b/tests/html/location_test.dart
index e1f0fb8a6599505a9f771932c91178f69258a396..88e3f2d357d91a1a6d0b2206243d651f1d5e6186 100644
--- a/tests/html/location_test.dart
+++ b/tests/html/location_test.dart
@@ -2,6 +2,7 @@ library LocationTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
+import 'dart:uri';
 
 main() {
   useHtmlConfiguration();
@@ -17,4 +18,17 @@ main() {
       var h = location.hash;
       expect(h, '#hello');
     });
+
+  test('location.origin', () {
+    var origin = window.location.origin;
+
+    // We build up the origin from Uri, then make sure that it matches.
+    var uri = new Uri(window.location.href);
+    var reconstructedOrigin = '${uri.scheme}://${uri.domain}';
+    if (uri.port != 0) {
+      reconstructedOrigin = '$reconstructedOrigin:${uri.port}';
+    }
+
+    expect(origin, reconstructedOrigin);
+  });
 }