mash: Convert ash shelf overflow bubble to wm common types

ash/shelf/overflow_bubble.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_OVERFLOW_BUBBLE_H_
-#define ASH_SHELF_OVERFLOW_BUBBLE_H_
-
-#include "base/macros.h"
-#include "ui/views/pointer_watcher.h"
-#include "ui/views/widget/widget_observer.h"
-
-namespace ui {
-class LocatedEvent;
-}
-
-namespace views {
-class View;
-}
-
-namespace ash {
-class OverflowBubbleView;
-class ShelfLayoutManager;
-class ShelfView;
-
-// OverflowBubble displays the overflown launcher items in a bubble.
-class OverflowBubble : public views::PointerWatcher,
-                       public views::WidgetObserver {
- public:
-  OverflowBubble();
-  ~OverflowBubble() override;
-
-  // Shows an bubble pointing to |anchor| with |shelf_view| as its content.
-  void Show(views::View* anchor, ShelfView* shelf_view);
-
-  void Hide();
-
-  // This method as name indicates will hide bubble and schedule paint
-  // for overflow button.
-  void HideBubbleAndRefreshButton();
-
-  bool IsShowing() const { return !!bubble_; }
-  ShelfView* shelf_view() { return shelf_view_; }
-  OverflowBubbleView* bubble_view() { return bubble_; }
-
- private:
-  void ProcessPressedEvent(const gfx::Point& event_location_in_screen);
-
-  // views::PointerWatcher:
-  void OnMousePressed(const ui::MouseEvent& event,
-                      const gfx::Point& location_in_screen,
-                      views::Widget* target) override;
-  void OnTouchPressed(const ui::TouchEvent& event,
-                      const gfx::Point& location_in_screen,
-                      views::Widget* target) override;
-
-  // Overridden from views::WidgetObserver:
-  void OnWidgetDestroying(views::Widget* widget) override;
-
-  OverflowBubbleView* bubble_;  // Owned by views hierarchy.
-  views::View* anchor_;         // Owned by ShelfView.
-  ShelfView* shelf_view_;       // Owned by |bubble_|.
-
-  DISALLOW_COPY_AND_ASSIGN(OverflowBubble);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SHELF_OVERFLOW_BUBBLE_H_