Changed to use JSInterop

tools/dom/src/native_DOMImplementation.dart

 // 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.
 
 part of html;
 
 class _Property {
   _Property(this.name) :
       _hasValue = false,
       writable = false,
@@ skipping 169 matching lines @@
   }
 
   static Element getAndValidateNativeType(Type type, String tagName) {
     var element = new Element.tag(tagName);
     if (!isTypeSubclassOf(type, element.runtimeType)) {
       return null;
     }
     return element;
   }
 
-  static window() => _blink.Blink_Utils.window();
+  static window() => wrap_jso(_blink.Blink_Utils.window()['window']);
   static forwardingPrint(String message) => _blink.Blink_Utils.forwardingPrint(message);
   static void spawnDomHelper(Function f, int replyTo) =>
       _blink.Blink_Utils.spawnDomHelper(f, replyTo);
 
   // TODO(vsm): Make this API compatible with spawnUri.  It should also
   // return a Future<Isolate>.
   static spawnDomUri(String uri) => _blink.Blink_Utils.spawnDomUri(uri);
 
   // The following methods were added for debugger integration to make working
   // with the Dart C mirrors API simpler.
@@ skipping 590 matching lines @@
       if (nativeClass.reflectedType != HtmlElement) {
         throw new UnsupportedError('Class must provide extendsTag if base '
             'native class is not HTMLElement');
       }
     }
 
     _register(document, tag, type, extendsTagName);
   }
 
   static void _register(Document document, String tag, Type customType,
-    String extendsTagName) => _blink.Blink_Utils.register(document, tag, customType, extendsTagName);
+    String extendsTagName) => _blink.Blink_Utils.register(unwrap_jso(document), tag, customType, extendsTagName);
 
   static Element createElement(Document document, String tagName) =>
-    _blink.Blink_Utils.createElement(document, tagName);
+    wrap_jso(_blink.Blink_Utils.createElement(unwrap_jso(document), tagName));
 
   static void initializeCustomElement(HtmlElement element) =>
-    _blink.Blink_Utils.initializeCustomElement(element);
+    _blink.Blink_Utils.initializeCustomElement(unwrap_jso(element));
 
   static Element changeElementWrapper(HtmlElement element, Type type) =>
-    _blink.Blink_Utils.changeElementWrapper(element, type);
+    _blink.Blink_Utils.changeElementWrapper(unwrap_jso(element), type);
 }
 
 class _DOMWindowCrossFrame extends NativeFieldWrapperClass2 implements
     WindowBase {
   _DOMWindowCrossFrame.internal();
 
   // Fields.
   HistoryBase get history => _blink.Blink_DOMWindowCrossFrame.get_history(this);
   LocationBase get location => _blink.Blink_DOMWindowCrossFrame.get_location(this);
   bool get closed => _blink.Blink_DOMWindowCrossFrame.get_closed(this);
@@ skipping 285 matching lines @@
   throw new UnimplementedError("scheduleMicrotask in background isolates "
                                "are not supported in the browser"));
 
 void _initializeCustomElement(Element e) {
   _Utils.initializeCustomElement(e);
 }
 
 // Class for unsupported native browser 'DOM' objects.
 class _UnsupportedBrowserObject extends NativeFieldWrapperClass2 {
 }