Removing ash::Shelf::shelf_model()

ash/shelf/shelf.h

Index: ash/shelf/shelf.h
diff --git a/ash/shelf/shelf.h b/ash/shelf/shelf.h
index 1292e1583c39fdcc7b984ebc13cce2b6b2cd5040..adecec1a1248879401900f47397d4d50a1ac1611 100644
--- a/ash/shelf/shelf.h
+++ b/ash/shelf/shelf.h
@@ -13,7 +13,6 @@
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/shelf_types.h"
 #include "ash/shelf/shelf_locking_manager.h"
-#include "ash/shelf/shelf_view.h"
 #include "ash/shelf/shelf_widget.h"
 #include "base/macros.h"
 #include "ui/gfx/geometry/size.h"
@@ -40,6 +39,7 @@ class FocusCycler;
 class ShelfDelegate;
 class ShelfIconObserver;
 class ShelfModel;
+class ShelfView;
 
 namespace test {
 class ShelfTestAPI;
@@ -140,8 +140,6 @@ class ASH_EXPORT Shelf {
 
   ShelfWidget* shelf_widget() { return shelf_widget_; }
 
-  ShelfModel* shelf_model() { return shelf_view_->model(); }
-
   // TODO(msw): ShelfLayoutManager should not be accessed externally.
   ShelfLayoutManager* shelf_layout_manager() {
     return shelf_widget_->shelf_layout_manager();