mash: Port mojo:ash_sysui's ContextMenuMus to mojo:ash.

ash/test/test_user_wallpaper_delegate.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_TEST_TEST_USER_WALLPAPER_DELEGATE_H_
-#define ASH_TEST_TEST_USER_WALLPAPER_DELEGATE_H_
-
-#include "ash/default_user_wallpaper_delegate.h"
-
-#include "base/macros.h"
-#include "ui/gfx/image/image_skia.h"
-
-namespace ash {
-namespace test {
-
-class TestUserWallpaperDelegate : public DefaultUserWallpaperDelegate {
- public:
-  TestUserWallpaperDelegate();
-  ~TestUserWallpaperDelegate() override;
-
-  void set_custom_wallpaper(const gfx::ImageSkia& wallpaper) {
-    custom_wallpaper_ = wallpaper;
-  }
-
-  // DefaultUserWallpaperDelegate overrides:
-  void UpdateWallpaper(bool clear_cache) override;
-
-  // Returns and clears |update_wallpaper_count_|.
-  int GetUpdateWallpaperCountAndReset();
-
- private:
-  // Number of times that UpdateWallpaper() has been called.
-  int update_wallpaper_count_;
-
-  // If non-null, used as custom wallpaper by UpdateWallpaper().
-  gfx::ImageSkia custom_wallpaper_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestUserWallpaperDelegate);
-};
-
-}  // namespace test
-}  // namespace ash
-
-#endif  // ASH_TEST_TEST_USER_WALLPAPER_DELEGATE_H_