Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/common/wallpaper/wallpaper_controller.h

Index: ash/common/wallpaper/wallpaper_controller.h
diff --git a/ash/wallpaper/wallpaper_controller.h b/ash/common/wallpaper/wallpaper_controller.h
similarity index 96%
rename from ash/wallpaper/wallpaper_controller.h
rename to ash/common/wallpaper/wallpaper_controller.h
index aaa3010f25129f563c8c46f7b4838da187a7b7e1..0cead11b420d6446c6b7907378e500fb3d062629 100644
--- a/ash/wallpaper/wallpaper_controller.h
+++ b/ash/common/wallpaper/wallpaper_controller.h
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_
-#define ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_
+#ifndef ASH_COMMON_WALLPAPER_WALLPAPER_CONTROLLER_H_
+#define ASH_COMMON_WALLPAPER_WALLPAPER_CONTROLLER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
+#include "ash/common/shell_observer.h"
+#include "ash/common/wm_display_observer.h"
 #include "ash/public/interfaces/wallpaper.mojom.h"
-#include "ash/shell_observer.h"
-#include "ash/wm_display_observer.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
@@ -186,4 +186,4 @@ class ASH_EXPORT WallpaperController
 
 }  // namespace ash
 
-#endif  // ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_
+#endif  // ASH_COMMON_WALLPAPER_WALLPAPER_CONTROLLER_H_