mash: Convert ash shelf overflow bubble to wm common types

ash/shelf/overflow_bubble_view.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_VIEW_H_
-#define ASH_SHELF_OVERFLOW_BUBBLE_VIEW_H_
-
-#include "ash/ash_export.h"
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "ui/views/bubble/bubble_dialog_delegate.h"
-
-namespace ash {
-class ShelfView;
-
-namespace test {
-class OverflowBubbleViewTestAPI;
-}
-
-// OverflowBubbleView hosts a ShelfView to display overflown items.
-// Exports to access this class from OverflowBubbleViewTestAPI.
-class ASH_EXPORT OverflowBubbleView : public views::BubbleDialogDelegateView {
- public:
-  OverflowBubbleView();
-  ~OverflowBubbleView() override;
-
-  void InitOverflowBubble(views::View* anchor, ShelfView* shelf_view);
-
-  // views::BubbleDialogDelegateView overrides:
-  int GetDialogButtons() const override;
-  gfx::Rect GetBubbleBounds() override;
-
- private:
-  friend class test::OverflowBubbleViewTestAPI;
-
-  bool IsHorizontalAlignment() const;
-
-  const gfx::Size GetContentsSize() const;
-
-  // Gets arrow location based on shelf alignment.
-  views::BubbleBorder::Arrow GetBubbleArrow() const;
-
-  void ScrollByXOffset(int x_offset);
-  void ScrollByYOffset(int y_offset);
-
-  // views::View overrides:
-  gfx::Size GetPreferredSize() const override;
-  void Layout() override;
-  void ChildPreferredSizeChanged(views::View* child) override;
-  bool OnMouseWheel(const ui::MouseWheelEvent& event) override;
-
-  // ui::EventHandler overrides:
-  void OnScrollEvent(ui::ScrollEvent* event) override;
-
-  ShelfView* shelf_view_;  // Owned by views hierarchy.
-  gfx::Vector2d scroll_offset_;
-
-  DISALLOW_COPY_AND_ASSIGN(OverflowBubbleView);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SHELF_OVERFLOW_BUBBLE_VIEW_H_