mash: Move ash constants and layout constants files to //ash/common

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager_test_utils.h

 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_
 
 #include <vector>
 
-#include "ash/ash_constants.h"
+#include "ash/common/ash_constants.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace base {
 class CommandLine;
+class FilePath;
 class ScopedTempDir;
 }  // namespace base
 
 namespace chromeos {
 namespace wallpaper_manager_test_utils {
 
 // Colors used for different default wallpapers by CreateCmdlineWallpapers().
 extern const SkColor kLargeDefaultWallpaperColor;
 extern const SkColor kSmallDefaultWallpaperColor;
 extern const SkColor kLargeGuestWallpaperColor;
@@ skipping 41 matching lines @@
 // wallpaper images to them.
 // Only needs to be called (once) by tests that want to test loading of
 // default wallpapers.
 void CreateCmdlineWallpapers(const base::ScopedTempDir& dir,
                              std::unique_ptr<base::CommandLine>* command_line);
 
 }  // namespace wallpaper_manager_test_utils
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_