https://codereview.chromium.org//23754012 resulted in some changes to the generated files but

sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart

 /**
  * A client-side key-value store with support for indexes.
  *
  * Many browsers support IndexedDB—a web standard for
  * an indexed database.
  * By storing data on the client in an IndexedDB,
  * a web app gets some advantages, such as faster performance and persistence.
  * To find out which browsers support IndexedDB,
  * refer to [Can I Use?](http://caniuse.com/#feat=indexeddb)
  *
@@ skipping 289 matching lines @@
   @DocsEditable()
   @annotation_Creates_SerializedScriptValue
   @annotation_Returns_SerializedScriptValue
   final dynamic _get_value;
 }
 // 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.
 
 
+@DocsEditable()
 /**
  * An indexed database object for storing client-side data
  * in web apps.
  */
-@DocsEditable()
 @DomName('IDBDatabase')
 @SupportedBrowser(SupportedBrowser.CHROME)
 @SupportedBrowser(SupportedBrowser.FIREFOX, '15')
 @SupportedBrowser(SupportedBrowser.IE, '10')
 @Experimental()
 @Unstable()
 class Database extends EventTarget native "IDBDatabase" {
   @DomName('IDBDatabase.createObjectStore')
   @DocsEditable()
   ObjectStore createObjectStore(String name,
@@ skipping 1014 matching lines @@
 // Copyright (c) 2012, 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.
 
 
 @DocsEditable()
 @DomName('IDBAny')
 @deprecated // nonstandard
 abstract class _IDBAny extends Interceptor native "IDBAny" {
 }