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

chrome/browser/ui/ash/multi_user/multi_user_context_menu_chromeos_unittest.cc

 // 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.
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/test_session_state_delegate.h"
 #include "ash/test/test_shell_delegate.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 78 matching lines @@
 TEST_F(MultiUserContextMenuChromeOSTest, OwnedWindow) {
   // Make the window owned and check that there is no menu (since only a single
   // user exists).
   multi_user_window_manager()->SetWindowOwner(window(),
                                               AccountId::FromUserEmail("A"));
   EXPECT_EQ(NULL, CreateMultiUserContextMenu(window()).get());
 
   // After adding another user a menu should get created.
   {
     SetNumberOfUsers(2);
-    scoped_ptr<ui::MenuModel> menu = CreateMultiUserContextMenu(window());
+    std::unique_ptr<ui::MenuModel> menu = CreateMultiUserContextMenu(window());
     ASSERT_TRUE(menu.get());
     EXPECT_EQ(1, menu.get()->GetItemCount());
   }
   {
     SetNumberOfUsers(3);
-    scoped_ptr<ui::MenuModel> menu = CreateMultiUserContextMenu(window());
+    std::unique_ptr<ui::MenuModel> menu = CreateMultiUserContextMenu(window());
     ASSERT_TRUE(menu.get());
     EXPECT_EQ(2, menu.get()->GetItemCount());
   }
 }
 
 }  // namespace test
 }  // namespace ash