Fix up dromaeo after lib v2 merge and add Dromaeo smoketest to prevent future

tests/html/dromaeo_noop/dromaeo_smoke.dart.js

Index: tests/html/dromaeo_noop/dromaeo_smoke.dart.js
diff --git a/sdk/lib/chrome/dartium/chrome_dartium.dart b/tests/html/dromaeo_noop/dromaeo_smoke.dart.js
similarity index 67%
copy from sdk/lib/chrome/dartium/chrome_dartium.dart
copy to tests/html/dromaeo_noop/dromaeo_smoke.dart.js
index c2286553e46c7790c0c932cfb76c98b6266b81d3..d1f3214f478b48f0b0a5411e0bf85fe256fcbc9c 100644
--- a/sdk/lib/chrome/dartium/chrome_dartium.dart
+++ b/tests/html/dromaeo_noop/dromaeo_smoke.dart.js
@@ -1,9 +1,9 @@
-library chrome;
-
 // Copyright (c) 2013, 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.
 
-// DO NOT EDIT
-// Auto-generated dart:chrome library.
-
+window.onload = function(){
+  startTest("dom-nothing");
+  test( "no-op", function(){});
+  endTest();
+};