Make DocumentFragment implement Element.

client/tests/client/html/html_tests.dart

Index: client/tests/client/html/html_tests.dart
diff --git a/client/tests/client/html/html_tests.dart b/client/tests/client/html/html_tests.dart
new file mode 100644
index 0000000000000000000000000000000000000000..191adb40b0f4afd9eb3608abe4f226a0a42c0b8e
--- /dev/null
+++ b/client/tests/client/html/html_tests.dart
@@ -0,0 +1,16 @@
+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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('layout_tests');
+
+#import('../../../base/base.dart');
+#import('../../../html/html.dart');
+#import('../../../testing/unittest/unittest.dart');
+#import('../../../util/utilslib.dart');
+
+#source('DocumentFragmentTests.dart');
+
+main() {
+  DocumentFragmentTests.main();
+}