mash: Show status area widget, attempt 2

ash/mus/bridge/wm_shelf_mus.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_MUS_BRIDGE_WM_SHELF_MUS_H_
 #define ASH_MUS_BRIDGE_WM_SHELF_MUS_H_
 
-#include <stdint.h>
-
-#include <vector>
-
 #include "ash/common/shelf/wm_shelf.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 
+namespace views {
+class Widget;
+}
+
 namespace ash {
+class WmRootWindowController;
+
 namespace mus {
 
-class ShelfLayoutManager;
-
 // WmShelf implementation for mus.
 class WmShelfMus : public WmShelf {
  public:
-  explicit WmShelfMus(ShelfLayoutManager* shelf_layout_manager);
+  WmShelfMus(WmRootWindowController* root_window_controller);
   ~WmShelfMus() override;
 
   // WmShelf:
   WmWindow* GetWindow() override;
   ShelfAlignment GetAlignment() const override;
   void SetAlignment(ShelfAlignment alignment) override;
   ShelfAutoHideBehavior GetAutoHideBehavior() const override;
   void SetAutoHideBehavior(ShelfAutoHideBehavior behavior) override;
   ShelfAutoHideState GetAutoHideState() const override;
   void UpdateAutoHideState() override;
@@ skipping 11 matching lines @@
   bool ProcessGestureEvent(const ui::GestureEvent& event) override;
   void AddObserver(WmShelfObserver* observer) override;
   void RemoveObserver(WmShelfObserver* observer) override;
   void SetKeyboardBoundsForTesting(const gfx::Rect& bounds) override;
   ShelfLockingManager* GetShelfLockingManagerForTesting() override;
   ShelfView* GetShelfViewForTesting() override;
 
  private:
   base::ObserverList<WmShelfObserver> observers_;
 
-  ShelfLayoutManager* shelf_layout_manager_;
+  // Owned by native widget.
+  views::Widget* shelf_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(WmShelfMus);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_BRIDGE_WM_SHELF_MUS_H_