Revert "Cleaning up shadow dom tests."

tests/html/shadow_dom_layout_test.dart

Index: tests/html/shadow_dom_layout_test.dart
diff --git a/tests/html/shadow_dom_layout_test.dart b/tests/html/shadow_dom_layout_test.dart
index 929995120002e7ed9677ab55fb4f41a0d22d1196..ec809ca134aa31f8a7c8871365375201bedc1d5a 100644
--- a/tests/html/shadow_dom_layout_test.dart
+++ b/tests/html/shadow_dom_layout_test.dart
@@ -20,15 +20,10 @@ main() {
   var greenbox = _colorBox('green', 60, 10);
 
   // assemble DOM
-  try {
-    var sRoot = new ShadowRoot(div);
-    sRoot.nodes.add(new Element.html('<content select=".foo"></content>'));
-    sRoot.nodes.add(redbox);
-    sRoot.nodes.add(new Element.tag('content'));
-  catch () {

[Emily Fortuna, 2012/12/18 22:12:50]

missed a closing } here

-    // Shadow Root may not be supported and throw an exception.
-    // Catch and continue to fail the test rather than hang.
-  }
+  var sRoot = new ShadowRoot(div);
+  sRoot.nodes.add(new Element.html('<content select=".foo"></content>'));
+  sRoot.nodes.add(redbox);
+  sRoot.nodes.add(new Element.tag('content'));
 
   div.nodes.add(bluebox);
   div.nodes.add(greenbox);