Get rid of a lot of () for getters.

lib/html/src/AnimationEventWrappingImplementation.dart

 // Copyright (c) 2011, 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.
 
 class AnimationEventWrappingImplementation extends EventWrappingImplementation implements AnimationEvent {
   static String _name;
 
   AnimationEventWrappingImplementation._wrap(ptr) : super._wrap(ptr);
 
-  static String get _eventName() {
+  static String get _eventName {
     if (_name != null) return _name;
 
     try {
       dom.document.createEvent("WebKitAnimationEvent");
       _name = "WebKitAnimationEvent";
     } catch (e) {
       _name = "AnimationEvent";
     }
     return _name;
   }
 
   factory AnimationEventWrappingImplementation(String type, String propertyName,
       double elapsedTime, [bool canBubble = true, bool cancelable = true]) {
     final e = dom.document.createEvent(_eventName);
     e.initWebKitAnimationEvent(
         type, canBubble, cancelable, propertyName, elapsedTime);
     return LevelDom.wrapAnimationEvent(e);
   }
 
-  String get animationName() => _ptr.animationName;
+  String get animationName => _ptr.animationName;
 
-  num get elapsedTime() => _ptr.elapsedTime;
+  num get elapsedTime => _ptr.elapsedTime;
 }