| Index: runtime/lib/async_patch.dart | 
| diff --git a/pkg/shadow_dom/lib/src/platform/platform-init.js b/runtime/lib/async_patch.dart | 
| similarity index 64% | 
| copy from pkg/shadow_dom/lib/src/platform/platform-init.js | 
| copy to runtime/lib/async_patch.dart | 
| index 4e83afc8c5fafb541d0e44d97fbd3621ddba5040..3299bc987df1279f92d213bee357c9793f74a90e 100644 | 
| --- a/pkg/shadow_dom/lib/src/platform/platform-init.js | 
| +++ b/runtime/lib/async_patch.dart | 
| @@ -2,4 +2,5 @@ | 
| // 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. | 
|  | 
| -var Platform = {}; | 
| +import "dart:_collection-dev" show ScheduleImmediateClosure, | 
| +                                   scheduleImmediateClosure; | 
|  |