Simplify ash shelf layout code.

ash/shelf/shelf.h

Index: ash/shelf/shelf.h
diff --git a/ash/shelf/shelf.h b/ash/shelf/shelf.h
index c00895f204b9b5581f529b10eb13b89edb92ac65..597dd37aca3b6c846b8e659fef2f021a1376944d 100644
--- a/ash/shelf/shelf.h
+++ b/ash/shelf/shelf.h
@@ -124,10 +124,6 @@ class ASH_EXPORT Shelf {
     return shelf_widget_->shelf_layout_manager();
   }
 
-  // Set the bounds of the shelf view.
-  void SetShelfViewBounds(gfx::Rect bounds);
-  gfx::Rect GetShelfViewBounds() const;
-
   // Returns rectangle bounding all visible shelf items. Used screen coordinate
   // system.
   gfx::Rect GetVisibleItemsBoundsInScreen() const;