Roll polymer packages to version 0.3.4

pkg/polymer/test/auto_binding_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 import 'dart:html';
 import 'package:polymer/auto_binding.dart';
 import 'package:polymer/polymer.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
@@ skipping 21 matching lines @@
       if (e.target.id == 'one') {
         expect(e.target, template);
 
         var t = template;
         var h = t.$['h'];
         expect(h.text, t.model.greeting, reason: 'binding applied');
         var ce = t.fire('tap', onNode: h, detail: []);
         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) {}
+}