Roll Observatory deps (charted -> ^0.3.0)

packages/charted/lib/charts/chart_config.dart

 //
 // 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;
 
@@ skipping 48 matching lines @@
   /// When set to true, the chart rendering changes to be more suitable for
   /// scripts that are written from right-to-left.
   bool isRTL;
 
   /// Indicate if the horizontal axes and the corresponding scales should
   /// switch direction too.
   /// Example: Time scale on the X axis would progress from right to left.
   bool switchAxesForRTL;
 
   /// Factory method to create an instance of the default implementation
-  factory ChartConfig(
-      Iterable<ChartSeries> series, Iterable<int> dimensions) = DefaultChartConfigImpl;
+  factory ChartConfig(Iterable<ChartSeries> series,
+      Iterable<int> dimensions) = DefaultChartConfigImpl;
 }
 
 ///
 /// [ChangeRecord] that is used to notify changes to [ChartConfig].
 /// Currently, changes to list of dimensions and list of series are monitored.
 ///
 class ChartConfigChangeRecord implements ChangeRecord {
   const ChartConfigChangeRecord();
 }
 
 ///
 /// Configuration for an axis
 ///
 class ChartAxisConfig {
   /// Title for the axis
   String title;
 
   /// Scale to be used with the axis
   Scale scale;
 
   /// For a quantitative scale, values at which ticks should be displayed.
   /// When not specified, the ticks are based on the type of [scale] used.
   Iterable tickValues;
 }