Turn on JS interop usage for DOM Dart libraries

sdk/lib/indexed_db/dartium/indexed_db_dartium.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 104 matching lines @@
   'IDBIndex': () => Index,
   'IDBKeyRange': () => KeyRange,
   'IDBObjectStore': () => ObjectStore,
   'IDBOpenDBRequest': () => OpenDBRequest,
   'IDBRequest': () => Request,
   'IDBTransaction': () => Transaction,
   'IDBVersionChangeEvent': () => VersionChangeEvent,
 
 };
 
+// FIXME: Can we make this private?
+final indexed_dbBlinkFunctionMap = {
+  'IDBCursor': () => Cursor.internalCreateCursor,
+  'IDBCursorWithValue': () => CursorWithValue.internalCreateCursorWithValue,
+  'IDBDatabase': () => Database.internalCreateDatabase,
+  'IDBFactory': () => IdbFactory.internalCreateIdbFactory,
+  'IDBIndex': () => Index.internalCreateIndex,
+  'IDBKeyRange': () => KeyRange.internalCreateKeyRange,
+  'IDBObjectStore': () => ObjectStore.internalCreateObjectStore,
+  'IDBOpenDBRequest': () => OpenDBRequest.internalCreateOpenDBRequest,
+  'IDBRequest': () => Request.internalCreateRequest,
+  'IDBTransaction': () => Transaction.internalCreateTransaction,
+  'IDBVersionChangeEvent': () => VersionChangeEvent.internalCreateVersionChangeEvent,
+
+};
 // 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.
 
 
 @DomName('IDBCursor')
 @Unstable()
 class Cursor extends NativeFieldWrapperClass2 {
   @DomName('IDBCursor.delete')
   Future delete() {
@@ skipping 1236 matching lines @@
   
   @DomName('IDBVersionChangeEvent.newVersion')
   @DocsEditable()
   int get newVersion => _blink.BlinkIDBVersionChangeEvent.instance.newVersion_Getter_(unwrap_jso(this));
   
   @DomName('IDBVersionChangeEvent.oldVersion')
   @DocsEditable()
   int get oldVersion => _blink.BlinkIDBVersionChangeEvent.instance.oldVersion_Getter_(unwrap_jso(this));
   
 }