Roll polymer packages to version 0.3.4

pkg/polymer/test/auto_binding_test.dart

Index: pkg/polymer/test/auto_binding_test.dart
diff --git a/pkg/polymer/test/auto_binding_test.dart b/pkg/polymer/test/auto_binding_test.dart
index b563814516a79a91a594554cb24f79245e615da1..1feea1691a1b26d06c61eb15f59a2931cdc1efc4 100644
--- a/pkg/polymer/test/auto_binding_test.dart
+++ b/pkg/polymer/test/auto_binding_test.dart
@@ -39,9 +39,22 @@ main() => initPolymer().run(() {
         expect(ce.detail, ['handled'], reason: 'element event handler fired');
       }
 
-      if (events == 2) completer.complete();
+      if (events == 3) completer.complete();
+    });
+
+    /// test dynamic creation
+    new Future(() {
+      var d = new DivElement();
+      d.setInnerHtml('<template is="auto-binding">Dynamical'
+          ' <input value="{{value}}"><div>{{value}}</div></template>',
+          treeSanitizer: new _NullSanitizer());
+      document.body.append(d);
     });
 
     return completer.future;
   });
 });
+
+class _NullSanitizer implements NodeTreeSanitizer {
+  sanitizeTree(Node node) {}
+}