Added common layout framework for system menu rows.

ui/views/test/test_views.h

Index: ui/views/test/test_views.h
diff --git a/ui/views/test/test_views.h b/ui/views/test/test_views.h
index ef17c150dcb9ac7498a0e6209ffaee426f307641..9d8a5b075a753f2d09451fcbb0bbee5f7253e0ff 100644
--- a/ui/views/test/test_views.h
+++ b/ui/views/test/test_views.h
@@ -16,6 +16,7 @@ namespace views {
 // A view that requests a set amount of space.
 class StaticSizedView : public View {
  public:
+  StaticSizedView();
   explicit StaticSizedView(const gfx::Size& size);

[sky, 2016/10/20 15:59:11]

How about making the size an optional parameter? Also, can you rename size to
preferred_size as that better conveys which size this sets.

[bruthig, 2016/10/20 19:01:34]

Done.

   ~StaticSizedView() override;