Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

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"
@@ skipping 49 matching lines @@
 
 // Wait until all wallpaper loading is done, and WallpaperManager comes into
 // a stable state.
 void WaitAsyncWallpaperLoadFinished();
 
 // Initializes default wallpaper paths "*default_*file" and writes JPEG
 // 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,
-                             scoped_ptr<base::CommandLine>* command_line);
+                             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_