Migrate dom tests to dart:html.

client/tests/client/dom/DOMConstructorsTest.dart

Index: client/tests/client/dom/DOMConstructorsTest.dart
diff --git a/client/tests/client/dom/DOMConstructorsTest.dart b/client/tests/client/dom/DOMConstructorsTest.dart
index e08abfc4eb03bd18c571fbae0fe5fe27bfa9c397..086c1a4f6989424e8c02a86b721fea5902618d80 100644
--- a/client/tests/client/dom/DOMConstructorsTest.dart
+++ b/client/tests/client/dom/DOMConstructorsTest.dart
@@ -1,10 +1,10 @@
 #library('DOMConstructorsTest');
 #import('../../../../lib/unittest/unittest.dart');
-#import('../../../../lib/unittest/dom_config.dart');
-#import('dart:dom');
+#import('../../../../lib/unittest/html_config.dart');
+#import('dart:html');
 
 main() {
-  useDomConfiguration();
+  useHtmlConfiguration();
   test('FileReader', () {
     FileReader fileReader = new FileReader();
     Expect.equals(FileReader.EMPTY, fileReader.readyState);