Start using the dart2js type conversions in Dartium as well.

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 204 matching lines @@
     if (key != null) {
       _blink.BlinkIDBCursor.instance.continue_Callback_1_(unwrap_jso(this), key);
       return;
     }
     _blink.BlinkIDBCursor.instance.continue_Callback_0_(unwrap_jso(this));
     return;
   }
 
   @DomName('IDBCursor.update')
   @DocsEditable()
-  Request _update(Object value) => wrap_jso(_blink.BlinkIDBCursor.instance.update_Callback_1_(unwrap_jso(this), value));
+  Request _update(Object value) => wrap_jso(_blink.BlinkIDBCursor.instance.update_Callback_1_(unwrap_jso(this), convertDartToNative_SerializedScriptValue(value)));
   
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
@@ skipping 121 matching lines @@
   @DomName('IDBDatabase.version')
   @DocsEditable()
   Object get version => wrap_jso(_blink.BlinkIDBDatabase.instance.version_Getter_(unwrap_jso(this)));
   
   @DomName('IDBDatabase.close')
   @DocsEditable()
   void close() => _blink.BlinkIDBDatabase.instance.close_Callback_0_(unwrap_jso(this));
   
   ObjectStore _createObjectStore(String name, [Map options]) {
     if (options != null) {
-      return wrap_jso(_blink.BlinkIDBDatabase.instance.createObjectStore_Callback_2_(unwrap_jso(this), name, options != null ? new js.JsObject.jsify(options) : options));
+      return wrap_jso(_blink.BlinkIDBDatabase.instance.createObjectStore_Callback_2_(unwrap_jso(this), name, convertDartToNative_Dictionary(options)));
     }
     return wrap_jso(_blink.BlinkIDBDatabase.instance.createObjectStore_Callback_1_(unwrap_jso(this), name));
   }
 
   @DomName('IDBDatabase.deleteObjectStore')
   @DocsEditable()
   void deleteObjectStore(String name) => _blink.BlinkIDBDatabase.instance.deleteObjectStore_Callback_1_(unwrap_jso(this), name);
   
   Transaction transaction(storeName_OR_storeNames, [String mode]) {
     if ((storeName_OR_storeNames is String || storeName_OR_storeNames == null) && mode == null) {
@@ skipping 12 matching lines @@
       return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_1_(unwrap_jso(this), unwrap_jso(storeName_OR_storeNames)));
     }
     if ((mode is String || mode == null) && (storeName_OR_storeNames is DomStringList || storeName_OR_storeNames == null)) {
       return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_2_(unwrap_jso(this), unwrap_jso(storeName_OR_storeNames), mode));
     }
     throw new ArgumentError("Incorrect number or type of arguments");
   }
 
   Transaction transactionList(List<String> storeNames, [String mode]) {
     if (mode != null) {
-      return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_2_(unwrap_jso(this), storeNames, mode));
+      return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_2_(unwrap_jso(this), convertDartToNative_StringArray(storeNames), mode));
     }
-    return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_1_(unwrap_jso(this), storeNames));
+    return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_1_(unwrap_jso(this), convertDartToNative_StringArray(storeNames)));
   }
 
   Transaction transactionStore(String storeName, [String mode]) {
     if (mode != null) {
       return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_2_(unwrap_jso(this), storeName, mode));
     }
     return wrap_jso(_blink.BlinkIDBDatabase.instance.transaction_Callback_1_(unwrap_jso(this), storeName));
   }
 
   Transaction transactionStores(List<String> storeNames, [String mode]) {
@@ skipping 588 matching lines @@
   @DomName('IDBObjectStore.name')
   @DocsEditable()
   String get name => _blink.BlinkIDBObjectStore.instance.name_Getter_(unwrap_jso(this));
   
   @DomName('IDBObjectStore.transaction')
   @DocsEditable()
   Transaction get transaction => wrap_jso(_blink.BlinkIDBObjectStore.instance.transaction_Getter_(unwrap_jso(this)));
   
   Request _add(Object value, [Object key]) {
     if (key != null) {
-      return wrap_jso(_blink.BlinkIDBObjectStore.instance.add_Callback_2_(unwrap_jso(this), value, key));
+      return wrap_jso(_blink.BlinkIDBObjectStore.instance.add_Callback_2_(unwrap_jso(this), convertDartToNative_SerializedScriptValue(value), convertDartToNative_SerializedScriptValue(key)));
     }
-    return wrap_jso(_blink.BlinkIDBObjectStore.instance.add_Callback_1_(unwrap_jso(this), value));
+    return wrap_jso(_blink.BlinkIDBObjectStore.instance.add_Callback_1_(unwrap_jso(this), convertDartToNative_SerializedScriptValue(value)));
   }
 
   @DomName('IDBObjectStore.clear')
   @DocsEditable()
   Request _clear() => wrap_jso(_blink.BlinkIDBObjectStore.instance.clear_Callback_0_(unwrap_jso(this)));
   
   @DomName('IDBObjectStore.count')
   @DocsEditable()
   Request _count(Object key) => wrap_jso(_blink.BlinkIDBObjectStore.instance.count_Callback_1_(unwrap_jso(this), key));
   
   Index _createIndex(String name, keyPath, [Map options]) {
     if ((keyPath is String || keyPath == null) && (name is String || name == null) && options == null) {
       return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_2_(unwrap_jso(this), name, unwrap_jso(keyPath)));
     }
     if ((options is Map || options == null) && (keyPath is String || keyPath == null) && (name is String || name == null)) {
-      return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_3_(unwrap_jso(this), name, unwrap_jso(keyPath), options != null ? new js.JsObject.jsify(options) : options));
+      return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_3_(unwrap_jso(this), name, unwrap_jso(keyPath), convertDartToNative_Dictionary(options)));
     }
     if ((keyPath is List<String> || keyPath == null) && (name is String || name == null) && options == null) {
       return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_2_(unwrap_jso(this), name, unwrap_jso(keyPath)));
     }
     if ((options is Map || options == null) && (keyPath is List<String> || keyPath == null) && (name is String || name == null)) {
-      return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_3_(unwrap_jso(this), name, unwrap_jso(keyPath), options != null ? new js.JsObject.jsify(options) : options));
+      return wrap_jso(_blink.BlinkIDBObjectStore.instance.createIndex_Callback_3_(unwrap_jso(this), name, unwrap_jso(keyPath), convertDartToNative_Dictionary(options)));
     }
     throw new ArgumentError("Incorrect number or type of arguments");
   }
 
   @DomName('IDBObjectStore.delete')
   @DocsEditable()
   Request _delete(Object key) => wrap_jso(_blink.BlinkIDBObjectStore.instance.delete_Callback_1_(unwrap_jso(this), key));
   
   @DomName('IDBObjectStore.deleteIndex')
   @DocsEditable()
@@ skipping 16 matching lines @@
 
   Request openKeyCursor(Object range, [String direction]) {
     if (direction != null) {
       return wrap_jso(_blink.BlinkIDBObjectStore.instance.openKeyCursor_Callback_2_(unwrap_jso(this), range, direction));
     }
     return wrap_jso(_blink.BlinkIDBObjectStore.instance.openKeyCursor_Callback_1_(unwrap_jso(this), range));
   }
 
   Request _put(Object value, [Object key]) {
     if (key != null) {
-      return wrap_jso(_blink.BlinkIDBObjectStore.instance.put_Callback_2_(unwrap_jso(this), value, key));
+      return wrap_jso(_blink.BlinkIDBObjectStore.instance.put_Callback_2_(unwrap_jso(this), convertDartToNative_SerializedScriptValue(value), convertDartToNative_SerializedScriptValue(key)));
     }
-    return wrap_jso(_blink.BlinkIDBObjectStore.instance.put_Callback_1_(unwrap_jso(this), value));
+    return wrap_jso(_blink.BlinkIDBObjectStore.instance.put_Callback_1_(unwrap_jso(this), convertDartToNative_SerializedScriptValue(value)));
   }
 
 
   /**
    * Helper for iterating over cursors in a request.
    */
   static Stream<Cursor> _cursorStreamFromResult(Request request,
       bool autoAdvance) {
     // TODO: need to guarantee that the controller provides the values
     // immediately as waiting until the next tick will cause the transaction to
@@ skipping 307 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));
   
 }