unittest step2: bye bye to multiple entrypoints for unittest

client/tests/client/dom/WebGL1Test.dart

Index: client/tests/client/dom/WebGL1Test.dart
diff --git a/client/tests/client/dom/WebGL1Test.dart b/client/tests/client/dom/WebGL1Test.dart
index 2ca069810cebaf0c66e068a5c5a0482c70c3768b..1c74a79c189450486901adb00bc782f0a92045b1 100644
--- a/client/tests/client/dom/WebGL1Test.dart
+++ b/client/tests/client/dom/WebGL1Test.dart
@@ -1,11 +1,12 @@
 #library('WebGL1Test');
-#import('../../../../lib/unittest/unittest_dom.dart');
+#import('../../../../lib/unittest/unittest.dart');
+#import('../../../../lib/unittest/dom_config.dart');
 #import('dart:dom');
 
 // Test that WebGL is present in dart:dom API
 
 main() {
-  forLayoutTests();
+  useDomConfiguration(isLayoutTest: true);
 
   test('simple', () {
       var canvas = document.createElement("canvas");