Removed Polymer from Observatory deps

packages/polymer/test/property_observe_test.dart

-// Copyright (c) 2013, 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.property_change_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:polymer/polymer.dart';
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-
-var _changes = 0;
-final _done = new Completer();
-
-checkDone() {
-  if (6 == ++_changes) {
-    _done.complete();
-  }
-}
-
-@CustomTag('x-test')
-class XTest extends PolymerElement {
-  @observable String bar = '';
-  @observable String pie;
-  @observable Map a;
-
-  XTest.created() : super.created();
-
-  ready() {
-    bar = 'bar';
-    pie = 'pie';
-    a = {'b': {'c': 'exists'}};
-  }
-
-  barChanged() {
-    // Dart note: unlike polymer-js we support multiple observers, due to how
-    // our @ObserveProperty metadata translated.
-    // _done.completeError('barChanged should not be called.');
-    expect('bar', 'bar', reason: 'barChanged called');
-    checkDone();
-  }
-
-  @ObserveProperty('bar pie')
-  validate() {
-    window.console.log('validate');
-    expect('bar', 'bar', reason: 'custom change observer called');
-    expect('pie', 'pie', reason: 'custom change observer called');
-    checkDone();
-  }
-
-  // Dart note: test that we can observe "pie" twice.
-  @ObserveProperty('pie')
-  validateYummyPie() {
-    window.console.log('validateYummyPie');
-    expect('pie', 'pie', reason: 'validateYummyPie called');
-    checkDone();
-  }
-
-  @ObserveProperty('a.b.c')
-  validateSubPath(oldValue, newValue) {
-    window.console.log('validateSubPath $oldValue $newValue');
-    expect(newValue, 'exists', reason: 'subpath change observer called');
-    checkDone();
-  }
-}
-
-@CustomTag('x-test2')
-class XTest2 extends XTest {
-  @observable String noogle;
-
-  XTest2.created() : super.created();
-
-  @ObserveProperty('noogle')
-  validate() => super.validate();
-
-  ready() {
-    super.ready();
-    noogle = 'noogle';
-  }
-}
-
-main() => initPolymer().then((zone) => zone.run(() {
-  useHtmlConfiguration();
-
-  setUp(() => Polymer.onReady);
-
-  test('changes detected', () => _done.future);
-}));