Use Point, Size, and Rect in layout2.dart

sky/sdk/lib/framework/app.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'layout2.dart';
 import 'dart:sky' as sky;
 
 class AppView {
 
   AppView(RenderBox root) {
@@ skipping 23 matching lines @@
   void _handleEvent(sky.Event event) {
     if (event is sky.PointerEvent)
       _handlePointerEvent(event);
   }
 
   void _handlePointerEvent(sky.PointerEvent event) {
     HitTestResult result;
     switch(event.type) {
       case 'pointerdown':
         result = new HitTestResult();
-        _renderView.hitTest(result, x: event.x, y: event.y);
+        _renderView.hitTest(result, position: new sky.Point(event.x, event.y));
         _hitTestResultForPointer[event.pointer] = result;
         break;
       case 'pointerup':
       case 'pointercancel':
         result = _hitTestResultForPointer[event.pointer];
         _hitTestResultForPointer.remove(event.pointer);
         break;
       case 'pointermove':
         result = _hitTestResultForPointer[event.pointer];
         break;
     }
     assert(result != null);
     result.path.reversed.forEach((RenderNode node) {
       node.handlePointer(event);
     });
   }
 
 }