ash: Remove WmShelf::ForPrimaryDisplay

ash/common/shelf/wm_shelf.h

 // Copyright 2016 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_COMMON_SHELF_WM_SHELF_H_
 #define ASH_COMMON_SHELF_WM_SHELF_H_
 
 #include "ash/ash_export.h"
 #include "ash/common/shelf/shelf_types.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 class GestureEvent;
 class MouseEvent;
 }
 
 namespace ash {
 
 class WmShelfObserver;
 class WmWindow;
 
 // Used for accessing global state.
 class ASH_EXPORT WmShelf {
  public:
-  // Returns the shelf for the primary display. Useful in tests that only use
-  // a single display. In production code use WmRootWindowController::GetShelf()
-  // with the appropriate display's root window controller.
-  static WmShelf* ForPrimaryDisplay();
-
   // Returns the window showing the shelf.
   virtual WmWindow* GetWindow() = 0;
 
   virtual ShelfAlignment GetAlignment() const = 0;
   virtual void SetAlignment(ShelfAlignment alignment) = 0;
 
   virtual ShelfAutoHideBehavior GetAutoHideBehavior() const = 0;
   virtual void SetAutoHideBehavior(ShelfAutoHideBehavior behavior) = 0;
 
   virtual ShelfAutoHideState GetAutoHideState() const = 0;
@@ skipping 36 matching lines @@
   // Simulates a virtual keyboard bounds update.
   virtual void SetKeyboardBoundsForTesting(const gfx::Rect& bounds) = 0;
 
  protected:
   virtual ~WmShelf() {}
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELF_WM_SHELF_H_