Regkey functions return error code instead of bool

chrome/installer/util/work_item_list.h

 // 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.
 
 #ifndef CHROME_INSTALLER_UTIL_WORK_ITEM_LIST_H_
 #define CHROME_INSTALLER_UTIL_WORK_ITEM_LIST_H_
 #pragma once
 
 #include <windows.h>
 
@@ skipping 43 matching lines @@
                                             const std::wstring& path);
 
   // Add a DeleteRegKeyWorkItem that deletes a registry key from the given
   // path.
   virtual WorkItem* AddDeleteRegKeyWorkItem(HKEY predefined_root,
                                             const std::wstring& path);
 
   // Add a DeleteRegValueWorkItem that deletes registry value of type REG_SZ
   // or REG_DWORD.
   virtual WorkItem* AddDeleteRegValueWorkItem(HKEY predefined_root,
-                                      const std::wstring& key_path,
-                                      const std::wstring& value_name,
-                                      DWORD type);
+                                              const std::wstring& key_path,
+                                              const std::wstring& value_name);
 
   // Add a DeleteTreeWorkItem that recursively deletes a file system
   // hierarchy at the given root path. A key file can be optionally specified
   // by key_path.
   virtual WorkItem* AddDeleteTreeWorkItem(
       const FilePath& root_path,
       const std::vector<FilePath>& key_paths);
 
   // Same as above but without support for key files.
   virtual WorkItem* AddDeleteTreeWorkItem(const FilePath& root_path);
@@ skipping 72 matching lines @@
   // Execute the WorkItems in the same order as they are added to the list.
   // If a WorkItem fails, the function will return failure but all other
   // WorkItems will still be executed.
   virtual bool Do();
 
   // Just does a NOTREACHED.
   virtual void Rollback();
 };
 
 #endif  // CHROME_INSTALLER_UTIL_WORK_ITEM_LIST_H_