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

ash/default_user_wallpaper_delegate.h

Index: ash/default_user_wallpaper_delegate.h
diff --git a/ash/default_user_wallpaper_delegate.h b/ash/default_user_wallpaper_delegate.h
deleted file mode 100644
index 80e20b1bbf33a108da5d738e42596a20472426f4..0000000000000000000000000000000000000000
--- a/ash/default_user_wallpaper_delegate.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// 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_DEFAULT_USER_WALLPAPER_DELEGATE_H_
-#define ASH_DEFAULT_USER_WALLPAPER_DELEGATE_H_
-
-#include "ash/ash_export.h"
-#include "ash/desktop_background/user_wallpaper_delegate.h"
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-
-namespace ash {
-
-class ASH_EXPORT DefaultUserWallpaperDelegate : public UserWallpaperDelegate {
- public:
-  DefaultUserWallpaperDelegate() {}
-  ~DefaultUserWallpaperDelegate() override {}
-
-  // UserWallpaperDelegate overrides:
-  int GetAnimationType() override;
-  int GetAnimationDurationOverride() override;
-  void SetAnimationDurationOverride(int animation_duration_in_ms) override;
-  bool ShouldShowInitialAnimation() override;
-  void UpdateWallpaper(bool clear_cache) override;
-  void InitializeWallpaper() override;
-  void OpenSetWallpaperPage() override;
-  bool CanOpenSetWallpaperPage() override;
-  void OnWallpaperAnimationFinished() override;
-  void OnWallpaperBootAnimationFinished() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DefaultUserWallpaperDelegate);
-};
-
-}  // namespace ash
-
-#endif  // ASH_DEFAULT_USER_WALLPAPER_DELEGATE_H_