Refactor: Shelf Widget

ash/system/tray/tray_background_view.h

Index: ash/system/tray/tray_background_view.h
diff --git a/ash/system/tray/tray_background_view.h b/ash/system/tray/tray_background_view.h
index 8b13665566eab7d5b5374b583e3daeb0a33c0986..39f2a4c619db2836ae6b51e207fbe666ccb96d65 100644
--- a/ash/system/tray/tray_background_view.h
+++ b/ash/system/tray/tray_background_view.h
@@ -6,8 +6,8 @@
 #define ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_
 
 #include "ash/ash_export.h"
-#include "ash/launcher/background_animator.h"
-#include "ash/shelf_types.h"
+#include "ash/shelf/background_animator.h"
+#include "ash/shelf/shelf_types.h"
 #include "ash/system/tray/actionable_view.h"
 #include "ui/views/bubble/tray_bubble_view.h"
 
@@ -100,12 +100,6 @@ class ASH_EXPORT TrayBackgroundView : public ActionableView,
   // Creates and sets contents background to |background_|.
   void SetContentsBackground();
 
-  // Sets whether the tray paints a background. Default is true, but is set to
-  // false if a window overlaps the shelf.
-  void SetPaintsBackground(
-      bool value,
-      internal::BackgroundAnimator::ChangeType change_type);
-
   // Initializes animations for the bubble.
   void InitializeBubbleAnimations(views::Widget* bubble_widget);
 
@@ -155,7 +149,6 @@ class ASH_EXPORT TrayBackgroundView : public ActionableView,
   // Owned by the view passed to SetContents().
   internal::TrayBackground* background_;
 
-  internal::BackgroundAnimator hide_background_animator_;
   internal::BackgroundAnimator hover_background_animator_;
   scoped_ptr<TrayWidgetObserver> widget_observer_;
   scoped_ptr<TrayEventFilter> tray_event_filter_;