StockRow height, background color updates

sky/sdk/lib/widgets/fixed_height_scrollable.dart

Index: sky/sdk/lib/widgets/fixed_height_scrollable.dart
diff --git a/sky/sdk/lib/widgets/fixed_height_scrollable.dart b/sky/sdk/lib/widgets/fixed_height_scrollable.dart
index e28c1907981211f66e65f277f57116ac0c5acf53..3336427d2b7dc61a648a3caa53a7b7ec68503012 100644
--- a/sky/sdk/lib/widgets/fixed_height_scrollable.dart
+++ b/sky/sdk/lib/widgets/fixed_height_scrollable.dart
@@ -12,7 +12,8 @@ import 'scrollable.dart';
 
 abstract class FixedHeightScrollable extends Scrollable {
 
-  FixedHeightScrollable({ this.itemHeight, Object key }) : super(key: key) {
+  FixedHeightScrollable({ this.itemHeight, Color backgroundColor, Object key })
+      : super(key: key, backgroundColor: backgroundColor) {
     assert(itemHeight != null);
   }
 
@@ -78,6 +79,6 @@ abstract class FixedHeightScrollable extends Scrollable {
     );
   }
 
-  List<UINode> buildItems(int start, int count);  
+  List<UINode> buildItems(int start, int count);
 
 }