pkg/js: moved example code to https://github.com/google/chartjs.dart/

pkg/js/example/chart.dart

-// Copyright (c) 2015, 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 chart;
-
-import 'dart:html';
-import 'package:js/js.dart';
-
-@JS()
-class Chart {
-  external Chart(CanvasRenderingContext2D ctx);
-
-  external dynamic Line(Data data, Options options);
-}
-
-@JS()
-@anonymous
-class Data {
-  external List get labels;
-  external List<DataSet> get datasets;
-
-  external factory Data({List<String> labels, List<DataSet> datasets});
-}
-
-/// Minimal implementation of dataset for line chart
-///
-/// http://www.chartjs.org/docs/#line-chart-data-structure
-@JS()
-@anonymous
-class DataSet {
-  external String get label;
-  external String get fillColor;
-  external String get strokeColor;
-  external String get pointColor;
-  external String get pointStrokeColor;
-  external String get pointHighlightFill;
-  external String get pointHighlightStroke;
-
-  external List<num> get data;
-
-  external factory DataSet(
-      {String label,
-      String fillColor,
-      String strokeColor,
-      String pointColor,
-      String pointStrokeColor,
-      String pointHighlightFill,
-      String pointHighlightStroke,
-      List<num> data});
-}
-
-/// Minimal implementation of options
-///
-/// http://www.chartjs.org/docs/#getting-started-global-chart-configuration
-@JS()
-@anonymous
-class Options {
-  external bool get responsive;
-
-  external factory Options({bool responsive});
-}