update to polymer js 0.5.1

pkg/polymer/test/js_interop_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.
 
 library polymer.test.web.js_interop_test;
 
 import 'dart:async';
 import 'dart:html';
 import 'dart:js';
 import 'package:polymer/polymer.dart';
@@ skipping 119 matching lines @@
     expect(jsElem.shadowRoot.text, 'FOOBAR', reason: 'text unchanged');
 
     interop.callMethod('aJsMethod', [123]);
     return flush();
   }).then((_) {
     expect(jsElem.shadowRoot.text, '900', reason: 'text set by JS method');
     expect(interop['baz'], 777, reason: 'unchanged');
   });
 }
 
-/// Calls Platform.flush() to flush Polymer.js pending operations, e.g.
+/// Calls WebComponents.flush() to flush Polymer.js pending operations, e.g.
 /// dirty checking for data-bindings.
 Future flush() {
-  var Platform = context['Platform'];
-  Platform.callMethod('flush');
+  var Polymer = context['Polymer'];
+  Polymer.callMethod('flush');

[Siggi Cherem (dart-lang), 2014/11/25 17:53:41]

same here as in instance.dart -- I thought this would be WebComponents.flush? Or
maybe update the comment?

[jakemac, 2014/12/01 18:42:50]

Updated comment

 
   var completer = new Completer();
-  Platform.callMethod('endOfMicrotask', [() => completer.complete()]);
+  Polymer.callMethod('endOfMicrotask', [() => completer.complete()]);
   return completer.future;
 }