Roll Observatory packages and add a roll script

charted/lib/charts/chart_series.dart

Index: charted/lib/charts/chart_series.dart
diff --git a/charted/lib/charts/chart_series.dart b/charted/lib/charts/chart_series.dart
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-//
-// Copyright 2014 Google Inc. All rights reserved.
-//
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file or at
-// https://developers.google.com/open-source/licenses/bsd
-//
-
-part of charted.charts;
-
-///
-/// A [ChartSeries] represents one or more columns in ChartData that are
-/// rendered together.
-///
-/// Examples:
-/// 1. For bar-chart or line-chart, a series consists of one column
-/// 2. For stacked chart or grouped bar chart, a series has more than columns
-///
-class ChartSeries {
-  /// Name of the series
-  final String name;
-
-  /// Optional Ids of measure axes.
-  ///
-  /// When specified renderers scale the column values against the ranges
-  /// of the given axes. If an axis with a matching Id does not exist in
-  /// [ChartArea] a new axis is created.
-  ///
-  /// When not specified, renderers may use [ChartArea.defaultMeasureAxis]
-  /// where ever necessary.  Refer to the implementation of [CartesianRenderer] for
-  /// more information on defaults and how the measure axes are used.
-  ///
-  /// If the implementation is [Observable] and [measureAxisIds] is set to an
-  /// [ObservableList], changes to the list must be broadcasted.
-  Iterable<String> measureAxisIds;
-
-  /// List of columns in ChartData that are measures of this series.
-  ///
-  /// A series may include more than one measure if the renderer supports it.
-  /// When there are more measures than what the renderer can handle, a renderer
-  /// only renders the first "supported number" of columns. If the number of
-  /// columns is less than the minimum that the renderer supports, the remaining
-  /// measures are assumed to have zeros.
-  ///
-  /// If the implementation is [Observable] and [measures] is set to an
-  /// [ObservableList], changes to the list must be broadcasted.
-  Iterable<int> measures;
-
-  /// Instance of the renderer used to render the series.
-  ///
-  /// [ChartArea] creates a renderer using [ChartRender.create] and uses it
-  /// to compute range of the measure axis and to render the chart.
-  ChartRenderer renderer;
-
-  /// Factory function to create an instance of internal implementation of
-  /// [ChartSeries].
-  factory ChartSeries(String name, Iterable<int> measures,
-      ChartRenderer renderer, { Iterable<String> measureAxisIds : null }) =>
-          new DefaultChartSeriesImpl(name, measures, renderer, measureAxisIds);
-}
-
-
-///
-/// Implementation of [ChangeRecord] that is used to notify changes to
-/// [ChartSeries].  Currently, only changes to measures and measureAxisIds
-/// are supported.
-///
-class ChartSeriesChangeRecord implements ChangeRecord {
-  /// Reference to series that changed
-  final ChartSeries series;
-
-  const ChartSeriesChangeRecord(this.series);
-}