Move files instead of copying them.

chrome/installer/util/work_item.h

 // Copyright (c) 2006-2008 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.
 //
 // Base class for managing an action of a sequence of actions to be carried
 // out during install/update/uninstall. Supports rollback of actions if this
 // process fails.
 
 #ifndef CHROME_INSTALLER_UTIL_WORK_ITEM_H_
 #define CHROME_INSTALLER_UTIL_WORK_ITEM_H_
 
 #include <string>
 #include <windows.h>
 
 class CopyTreeWorkItem;
 class CreateDirWorkItem;
 class CreateRegKeyWorkItem;
 class DeleteTreeWorkItem;
 class DeleteRegValueWorkItem;
+class MoveTreeWorkItem;
 class SetRegValueWorkItem;
 class WorkItemList;
 
 // A base class that defines APIs to perform/rollback an action or a
 // sequence of actions during install/update/uninstall.
 class WorkItem {
  public:
   // Possible states
   typedef enum CopyOverWriteOption {
     ALWAYS,  // Always overwrite regardless of what existed before.
@@ skipping 28 matching lines @@
   static DeleteRegValueWorkItem* CreateDeleteRegValueWorkItem(
       HKEY predefined_root, std::wstring key_path,
       std::wstring value_name, bool is_str_type);
 
   // Create a DeleteTreeWorkItem that recursively deletes a file system
   // hierarchy at the given root path. A key file can be optionally specified
   // by key_path.
   static DeleteTreeWorkItem* CreateDeleteTreeWorkItem(std::wstring root_path,
                                                       std::wstring key_path);
 
+  // Create a MoveTreeWorkItem that recursively moves a file system hierarchy
+  // from source path to destination path.
+  static MoveTreeWorkItem* CreateMoveTreeWorkItem(std::wstring source_path,
+      std::wstring dest_path, std::wstring temp_dir);
+
   // Create a SetRegValueWorkItem that sets a registry value with REG_SZ type
   // at the key with specified path.
   static SetRegValueWorkItem* CreateSetRegValueWorkItem(
       HKEY predefined_root, std::wstring key_path,
       std::wstring value_name, std::wstring value_data, bool overwrite);
 
   // Create a SetRegValueWorkItem that sets a registry value with REG_DWORD type
   // at the key with specified path.
   static SetRegValueWorkItem* CreateSetRegValueWorkItem(
       HKEY predefined_root, std::wstring key_path,
@@ skipping 21 matching lines @@
 
   // For diagnostics.
   virtual std::wstring Dump();
 
  protected:
   WorkItem();
 };
 
 #endif  // CHROME_INSTALLER_UTIL_WORK_ITEM_H_