Introduce a SetRegValueWorkItem overload that accepts a callback instead (...)

chrome/installer/util/work_item_list.cc

 // Copyright (c) 2011 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 "chrome/installer/util/work_item_list.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "chrome/installer/util/callback_work_item.h"
 #include "chrome/installer/util/copy_tree_work_item.h"
@@ skipping 190 matching lines @@
       WorkItem::CreateSetRegValueWorkItem(predefined_root,
                                           key_path,
                                           wow64_access,
                                           value_name,
                                           value_data,
                                           overwrite));
   AddWorkItem(item);
   return item;
 }
 
+WorkItem* WorkItemList::AddSetRegValueWorkItem(
+    HKEY predefined_root,
+    const std::wstring& key_path,
+    REGSAM wow64_access,
+    const std::wstring& value_name,
+    const WorkItem::GetValueFromExistingCallback& get_value_callback) {
+  WorkItem* item = WorkItem::CreateSetRegValueWorkItem(predefined_root,
+                                                       key_path,
+                                                       wow64_access,
+                                                       value_name,
+                                                       get_value_callback);
+  AddWorkItem(item);
+  return item;
+}
+
 WorkItem* WorkItemList::AddSelfRegWorkItem(const std::wstring& dll_path,
                                            bool do_register,
                                            bool user_level_registration) {
   WorkItem* item = WorkItem::CreateSelfRegWorkItem(dll_path, do_register,
                                                    user_level_registration);
   AddWorkItem(item);
   return item;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 20 matching lines @@
   if (result)
     VLOG(1) << "NoRollbackWorkItemList: list execution succeeded";
 
   status_ = LIST_EXECUTED;
   return result;
 }
 
 void NoRollbackWorkItemList::Rollback() {
   // Ignore rollback.
 }