ash: Remove unnecessary utility methods from ash::Shelf

ash/shelf/shelf.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_SHELF_SHELF_H_
 #define ASH_SHELF_SHELF_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 71 matching lines @@
   // when dragging panels to reposition them with respect to the other panels.
   void UpdateIconPositionForWindow(WmWindow* window);
 
   // Activates the the shelf item specified by the index in the list of shelf
   // items.
   void ActivateShelfItem(int index);
 
   // Cycles the window focus linearly over the current shelf items.
   void CycleWindowLinear(CycleDirection direction);
 
-  // Returns true if the shelf is showing a context menu.
-  bool IsShowingMenu() const;
-
-  // TODO(jamescook): Migrate this to ShelfWidget.
-  bool IsShowingOverflowBubble() const;
-
-  // TODO(jamescook): Migrate to ShelfWidget::IsShelfVisible().
-  bool IsVisible() const;
-
   AppListButton* GetAppListButton() const;
 
   // Launch a 0-indexed shelf item in the shelf.
   // A negative index launches the last shelf item in the shelf.
   void LaunchAppIndexAt(int item_index);
 
   ShelfWidget* shelf_widget() { return shelf_widget_; }
 
   // TODO(msw): ShelfLayoutManager should not be accessed externally.
   ShelfLayoutManager* shelf_layout_manager() {
@@ skipping 27 matching lines @@
 
   ShelfAlignment alignment_ = SHELF_ALIGNMENT_BOTTOM;
   ShelfAutoHideBehavior auto_hide_behavior_ = SHELF_AUTO_HIDE_BEHAVIOR_NEVER;
 
   DISALLOW_COPY_AND_ASSIGN(Shelf);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELF_SHELF_H_