unittest step2: bye bye to multiple entrypoints for unittest

client/tests/client/dom/WindowNSMETest.dart

Index: client/tests/client/dom/WindowNSMETest.dart
diff --git a/client/tests/client/dom/WindowNSMETest.dart b/client/tests/client/dom/WindowNSMETest.dart
index d09ff019e4b2281fbbe98482a20c98461c389fa8..9c1deee7aa5813114d28e0cf16ebefc58c6329b5 100644
--- a/client/tests/client/dom/WindowNSMETest.dart
+++ b/client/tests/client/dom/WindowNSMETest.dart
@@ -3,7 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 
 #library('WindowNSMETest');
-#import('../../../../lib/unittest/unittest_dom.dart');
+#import('../../../../lib/unittest/unittest.dart');
+#import('../../../../lib/unittest/dom_config.dart');
 #import('dart:dom', prefix: 'dom');
 
 // Not defined in dom.Window.
@@ -16,6 +17,7 @@ class Unused {
 int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
 
 main() {
+  useDomConfiguration();
   var things = [new Unused(), dom.window];
 
   test('windowNonMethod', () {