Dartifying dart:html type names.

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;
+library CssStyleDeclarationTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
 
 main() {
   useHtmlConfiguration();
 
   createTestStyle() {
-    return new CSSStyleDeclaration.css("""
+    return new CssStyleDeclaration.css("""
       color: blue;
       width: 2px !important;
     """);
   };
 
   test('default constructor is empty', () {
-    var style = new CSSStyleDeclaration();
+    var style = new CssStyleDeclaration();
     expect(style.cssText, isEmpty);
     expect(style.getPropertyPriority('color'), isEmpty);
     expect(style.item(0), isEmpty);
     expect(style, hasLength(0));
     // These assertions throw a UnimplementedError in dartium:
     // expect(style.parentRule, isNull);
     // expect(style.getPropertyCssValue('color'), isNull);
     // expect(style.getPropertyShorthand('color'), isNull);
   });
 
@@ skipping 34 matching lines @@
     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.children.add(element);
 
     element.getComputedStyle('').then(expectAsync1(
-      (CSSStyleDeclaration style) {
+      (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.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) {
+        (CssStyleDeclaration style) {
           expect(style.textDecoration, equals('underline'));
         }
       ));
     }), 10);
   });
 }