fix dartcombat tests

client/tests/client/samples/dartcombat/dartcombat_tests.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.
 
 
 #library('dartcombat_tests');
 
-#import('../../../../html/html.dart');
+#import('dart:html');
 #import('../../../../testing/unittest/unittest.dart');
 #import('../../../../samples/dartcombat/dartcombatlib.dart');
 
 ReceivePort testPort;
 
 main() {
   testPort = new ReceivePort();
 
   setupUI();
   // add relative URL to stylesheet to the correct location. Note: The CSS is
@@ skipping 121 matching lines @@
 }
 
 doMouseEvent(String type, var targetCell) {
   final point = window.webkitConvertPointFromNodeToPage(targetCell,
       new Point(5, 5));
 
   MouseEvent e = new MouseEvent(type, window, 0, 0, 0, point.x, point.y, 0,
       relatedTarget: targetCell);
   targetCell.on[type].dispatch(e);
 }