Make it possible to test that the stock app doesn't crash on startup and paints the basic scaffold …

sky/tests/raw/padding_deflate.dart

Index: sky/tests/raw/padding_deflate.dart
diff --git a/sky/tests/raw/padding_deflate.dart b/sky/tests/raw/padding_deflate.dart
index 091db772f8e2fe6cfb3933d824486b2305f556af..80533cd1671c6e187d11ea34757cd8ff9d815041 100644
--- a/sky/tests/raw/padding_deflate.dart
+++ b/sky/tests/raw/padding_deflate.dart
@@ -3,12 +3,14 @@
 // found in the LICENSE file.
 
 import 'dart:sky' as sky;
-import '../resources/third_party/unittest/unittest.dart';
-import '../resources/unit.dart';
-import '../resources/display_list.dart';
+
 import 'package:sky/framework/rendering/box.dart';
 import 'package:sky/framework/rendering/object.dart';
 
+import '../resources/display_list.dart';
+import '../resources/third_party/unittest/unittest.dart';
+import '../resources/unit.dart';
+
 void main() {
   initUnit();
 
@@ -22,11 +24,7 @@ void main() {
       decoration: new BoxDecoration(),
       child: paddingBox
     );
-    TestView renderView = new TestView(child: root);
-    renderView.attach();
-    renderView.rootConstraints = new ViewConstraints(width: sky.view.width, height: sky.view.height);
-    renderView.scheduleInitialLayout();
-    RenderObject.flushLayout();
+    new TestRenderView(root);
     expect(coloredBox.size.width, equals(sky.view.width - 20));
     expect(coloredBox.size.height, equals(sky.view.height - 20));
   });