Deprecating Element.elements for Element.children.

tests/html/cssstyledeclaration_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 CSSStyleDeclarationTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
 
 main() {
@@ skipping 31 matching lines @@
   test('removeProperty is wrapped', () {
     var style = createTestStyle();
     style.removeProperty("width");
     expect(style.cssText.trim(),
       equals("color: blue;"));
   });
 
   test('CSS property empty getters and setters', () {
     var style = createTestStyle();
     expect(style.border, equals(""));
-    
+
     style.border = "1px solid blue";
     style.border = "";
     expect(style.border, equals(""));
   });
 
   test('CSS property getters and setters', () {
     var style = createTestStyle();
     expect(style.color, equals("blue"));
     expect(style.width, equals("2px"));
 
     style.color = "red";
     style.transform = "translate(10px, 20px)";
 
     expect(style.color, equals("red"));
     expect(style.transform, equals("translate(10px, 20px)"));
   });
 
   test('Browser prefixes', () {
     var element = new DivElement();
     element.style.transform = 'translateX(10px)';
-    document.body.elements.add(element);
+    document.body.children.add(element);
 
     element.getComputedStyle('').then(expectAsync1(
       (CSSStyleDeclaration style) {
         // Some browsers will normalize this, so it'll be a matrix rather than
         // the original string. Just check that it's something other than null.
         expect(style.transform.length, greaterThan(3));
       }
     ));
   });
 
   // IE9 requires an extra poke for some properties to get applied.
   test('IE9 Invalidation', () {
     var element = new DivElement();
-    document.body.elements.add(element);
+    document.body.children.add(element);
 
     // Need to wait one tick after the element has been added to the page.
     window.setTimeout(expectAsync0(() {
       element.style.textDecoration = 'underline';
       element.getComputedStyle('').then(expectAsync1(
         (CSSStyleDeclaration style) {
           expect(style.textDecoration, equals('underline'));
         }
       ));
     }), 10);
   });
 }