Roll Observatory packages and add a roll script

packages/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';
+
+class TestModel {
+  var greeting = 'Hi';
+  eventAction(e) {
+    e.detail.add('handled');
+  }
+}
+
+main() => initPolymer().then((zone) => zone.run(() {
+  useHtmlConfiguration();
+
+  setUp(() => Polymer.onReady);
+
+  test('elements upgraded', () {
+    AutoBindingElement template = document.getElementById('one');
+    template.model = new TestModel();
+
+    var completer = new Completer();
+    var events = 0;
+    window.addEventListener('template-bound', (e) {
+      events++;
+      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 == 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) {}
+}