Roll Observatory deps (charted -> ^0.3.0)

packages/charted/lib/core/utils/object_factory.dart

Index: packages/charted/lib/core/utils/object_factory.dart
diff --git a/packages/charted/lib/core/utils/object_factory.dart b/packages/charted/lib/core/utils/object_factory.dart
index 7ddab0763d453758bcf42b5ad0f193780445fb24..465ac186b0b2ed4792bc1f20ed17c3736c391eba 100644
--- a/packages/charted/lib/core/utils/object_factory.dart
+++ b/packages/charted/lib/core/utils/object_factory.dart
@@ -30,8 +30,7 @@ class ObjectFactory<T> {
     if (!_components.containsKey(name)) {
       throw new ArgumentError('Element $name not found in ComponentFactory');
     }
-    var creator = _components[name],
-        instance = creator();
+    var creator = _components[name], instance = creator();
     if (instance == null) {
       throw new ArgumentError('Component $name initialization failed.');
     }