aura: Fix Chrome OS status area browser tests.

ui/aura_shell/shelf_layout_controller.h

Index: ui/aura_shell/shelf_layout_controller.h
diff --git a/ui/aura_shell/shelf_layout_controller.h b/ui/aura_shell/shelf_layout_controller.h
index a675699e5e1fa67c97d914d01ba41c82802e4c39..6ea62f1f831a70f1a25ce8e88149ccfc3cbb6a26 100644
--- a/ui/aura_shell/shelf_layout_controller.h
+++ b/ui/aura_shell/shelf_layout_controller.h
@@ -23,10 +23,12 @@ namespace internal {
 // status area as well as positioning them.
 class ShelfLayoutController : public ui::LayerAnimationObserver {
  public:
-  ShelfLayoutController(views::Widget* launcher,
-                        views::Widget* status);
+  ShelfLayoutController(views::Widget* launcher_widget,
+                        views::Widget* status_widget);
   virtual ~ShelfLayoutController();
 
+  views::Widget* status_widget() { return status_widget_; }
+
   // Stops any animations and sets the bounds of the launcher and status
   // widgets.
   void LayoutShelf();
@@ -71,8 +73,8 @@ class ShelfLayoutController : public ui::LayerAnimationObserver {
   // Max height needed.
   int max_height_;
 
-  views::Widget* launcher_;
-  views::Widget* status_;
+  views::Widget* launcher_widget_;
+  views::Widget* status_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfLayoutController);
 };