Support dart and js scripts in HTML tests, on dartium.

tests/html/scripts_test_js.js

Index: tests/html/scripts_test_js.js
diff --git a/pkg/docgen/test/multi_library_code/lib/root_lib.dart b/tests/html/scripts_test_js.js
similarity index 55%
copy from pkg/docgen/test/multi_library_code/lib/root_lib.dart
copy to tests/html/scripts_test_js.js
index 74423abfeba22b68b7561d308758df0fdd7d9e60..a495473707475333fe91c8e9633bfcde18daf6e4 100644
--- a/pkg/docgen/test/multi_library_code/lib/root_lib.dart
+++ b/tests/html/scripts_test_js.js
@@ -2,12 +2,10 @@
 // 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 root_lib;
+window.postMessage('fish', '*');
 
-export 'test_lib.dart';
-export 'test_lib_foo.dart';
-export 'test_lib_bar.dart';
-
-class RootClass {
-  RootClass(int a, int b);
+function delayed() {
+  parent.postMessage('cow', '*');  // Unexpected message OK.

[ricow1, 2014/11/05 10:59:54]

why parent here and not window?

[Bill Hesse, 2014/11/05 12:51:51]

WE want to test that sending to parent does not break anything.  Comment was
wrong.  Added another line that tests an unexpected message to window.

+  window.postMessage('crab', '*');
 }
+setTimeout(delayed, 500);