unittest step2: bye bye to multiple entrypoints for unittest

client/tests/client/dom/EventsTest.dart

Index: client/tests/client/dom/EventsTest.dart
diff --git a/client/tests/client/dom/EventsTest.dart b/client/tests/client/dom/EventsTest.dart
index dff4d73a38c8e4ba8e2d8044f00d7b4b1c7aeb41..7e6bd6ea69f3a97ab3520f3c9bba7dd605df4646 100644
--- a/client/tests/client/dom/EventsTest.dart
+++ b/client/tests/client/dom/EventsTest.dart
@@ -1,9 +1,10 @@
 #library('EventsTest');
-#import('../../../../lib/unittest/unittest_dom.dart');
+#import('../../../../lib/unittest/unittest.dart');
+#import('../../../../lib/unittest/dom_config.dart');
 #import('dart:dom');
 
 main() {
-  forLayoutTests();
+  useDomConfiguration(isLayoutTest: true);
   test('TimeStamp', () {
     Event event = document.createEvent('Event');