Get rid of a lot of () for getters.

lib/dom/src/dart2js_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.
 
 // TODO(vsm): Unify with Dartium version.
 class _DOMWindowCrossFrameImpl implements DOMType, DOMWindow {
   // Private window.
   _DOMWindowJs _window;
 
   // DOMType
   var dartObjectLocalStorage;
-  String get typeName() => "DOMWindow";
+  String get typeName => "DOMWindow";
 
   // Fields.
   // TODO(vsm): Implement history and location getters.
 
-  bool get closed() => _window.closed;
-  int get length() => _window.length;
-  DOMWindow get opener() => _createSafe(_window.opener);
-  DOMWindow get parent() => _createSafe(_window.parent);
-  DOMWindow get top() => _createSafe(_window.top);
+  bool get closed => _window.closed;
+  int get length => _window.length;
+  DOMWindow get opener => _createSafe(_window.opener);
+  DOMWindow get parent => _createSafe(_window.parent);
+  DOMWindow get top => _createSafe(_window.top);
 
   // Methods.
   void focus() => _window.focus();
 
   void blur() => _window.blur();
 
   void close() => _window.close();
 
   void postMessage(Dynamic message,
                    String targetOrigin,
@@ skipping 21 matching lines @@
 
   static DOMWindow _createSafe(w) {
     if (w === window) {
       return w;
     } else {
       // TODO(vsm): Cache or implement equality.
       return new _DOMWindowCrossFrameImpl(w);
     }
   }
 }