chromeos: Move files in //ash/common to //ash, part 1

ash/common/system/tray/tray_image_item.h

-// Copyright (c) 2012 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_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_
-#define ASH_COMMON_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_
-
-#include "ash/ash_export.h"
-#include "ash/common/system/tray/system_tray_item.h"
-#include "base/macros.h"
-#include "third_party/skia/include/core/SkColor.h"
-
-namespace views {
-class ImageView;
-}
-
-namespace gfx {
-struct VectorIcon;
-}
-
-namespace ash {
-class TrayItemView;
-
-// A system tray item that uses an image as its "tray view" in the status area.
-class ASH_EXPORT TrayImageItem : public SystemTrayItem {
- public:
-  TrayImageItem(SystemTray* system_tray,
-                const gfx::VectorIcon& icon,
-                UmaType uma_type);
-  ~TrayImageItem() override;
-
-  views::View* tray_view();
-
- protected:
-  virtual bool GetInitialVisibility() = 0;
-
-  // Overridden from SystemTrayItem.
-  views::View* CreateTrayView(LoginStatus status) override;
-  views::View* CreateDefaultView(LoginStatus status) override;
-  views::View* CreateDetailedView(LoginStatus status) override;
-  void DestroyTrayView() override;
-  void DestroyDefaultView() override;
-  void DestroyDetailedView() override;
-  void UpdateAfterLoginStatusChange(LoginStatus status) override;
-  void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override;
-
-  // Sets the color of the icon to |color|.
-  void SetIconColor(SkColor color);
-
- private:
-  // Sets the current icon on |tray_view_|'s ImageView.
-  void UpdateImageOnImageView();
-
-  // The icon and its current color.
-  const gfx::VectorIcon& icon_;
-  SkColor icon_color_;
-
-  // The image view in the tray.
-  TrayItemView* tray_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayImageItem);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_