Disable offset test until it is reproducible across machines.

tests/html/element_test.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 ElementTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_individual_config.dart';
 import 'dart:async';
 import 'dart:html';
 import 'dart:svg' as svg;
@@ skipping 779 matching lines @@
       var itemb = query('.item-b');
       var item1 = query('.item-1');
       var itemii = query('.item-ii');
       var level1 = query('.level-1');
       var baz = query('.baz');
       var bar = query('.bar');
       var qux = query('.qux');
       var quux = query('.quux');
 
       var point = itema.offsetTo(itemii);
-      expect(point.x, 40);
+      // TODO(efortuna): Make cross-machine reproducible.
+      /*expect(point.x, 40);
       expect(point.y, inInclusiveRange(17, 20));
 
       expect(baz.offsetTo(bar).x, 7000);
       expect(baz.offsetTo(bar).y, inInclusiveRange(599, 604));
 
       qux.style.position = 'fixed';
       expect(quux.offsetTo(qux).x, 0);
       expect(quux.offsetTo(qux).y, 0);
 
       point = item1.offsetTo(itemb);
       expect(point.x, 40);
       expect(point.y, inInclusiveRange(17, 20));
       point = itemb.offsetTo(itemii);
       expect(point.x, 190);
       expect(point.y, inInclusiveRange(54, 60));
       point = item1.offsetTo(itemii);
       expect(point.x, 230);
-      expect(point.y, inInclusiveRange(74, 80));
+      expect(point.y, inInclusiveRange(74, 80));*/
     });
 
     test('documentOffset', () {
       var bar = query('.bar');
       var baz = query('.baz');
       var qux = query('.qux');
       var quux = query('.quux');
       var itema = query('.item-a');
       var itemb = query('.item-b');
       var item1 = query('.item-1');
       var itemii = query('.item-ii');
 
-      expect(itema.documentOffset.x, 88);
+      // TODO(efortuna): Make cross-machine reproducible.
+      /*expect(itema.documentOffset.x, 88);
       expect(itema.documentOffset.y, inInclusiveRange(119, 160));
 
       expect(itemii.documentOffset.x, 48);
       expect(itemii.documentOffset.y, inInclusiveRange(101, 145));
 
       expect(itemb.documentOffset.x, 238);
       expect(itemb.documentOffset.y, inInclusiveRange(157, 205));
 
       expect(item1.documentOffset.x, 278);
       expect(item1.documentOffset.y, inInclusiveRange(175, 222));
 
       expect(bar.documentOffset.x, 90);
       expect(bar.documentOffset.y, 8);
 
       expect(baz.documentOffset.x, 7090);
       expect(baz.documentOffset.y, 608);
 
       expect(qux.documentOffset.x, 8);
       expect(qux.documentOffset.y, inInclusiveRange(221, 232));
 
       expect(quux.documentOffset.x, 8);
-      expect(quux.documentOffset.y, inInclusiveRange(221, 232));
+      expect(quux.documentOffset.y, inInclusiveRange(221, 232));*/
     });
   });
 
 }