Updated charted DEP to 0.4.X

packages/charted/lib/layout/src/pie_layout.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.layout;
 
 /**
@@ skipping 49 matching lines @@
     index.forEach((i) {
       endAngle = startAngle + values[i] * scaleFactor;
       arcs[count++] = new SvgArcData(data[i], values[i], startAngle, endAngle);
       startAngle = endAngle;
     });
 
     return arcs;
   }
 
   /** Sets a constant value to start angle of the layout */
-  set startAngle(num value) => startAngleCallback = toCallback(value);
+  set startAngle(num value) {
+    startAngleCallback = toCallback(value);
+  }
 
   /** Sets a constant value to end angle of the layout */
-  set endAngle(num value) => endAngleCallback = toCallback(value);
+  set endAngle(num value) {
+    endAngleCallback = toCallback(value);
+  }
 
   /** Default value accessor */
   static num defaultValueAccessor(num d, i) => d;
 
   /** Default start angle callback - returns 0 */
   static num defaultStartAngleCallback(d, i, _) => 0;
 
   /** Default end angle callback - returns 2 * PI */
   static num defaultEndAngleCallback(d, i, _) => 2 * PI;
 }