Add WOW64 support to the installer registry work items

chrome/installer/util/work_item.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.
 //
 // 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_
@@ skipping 35 matching lines @@
     IF_NOT_PRESENT,  // Copy only if file/directory do not exist already.
     NEW_NAME_IF_IN_USE  // Copy to a new path if dest is in use(only files).
   };
 
   // Options for the MoveTree work item.
   enum MoveTreeOption {
     ALWAYS_MOVE,  // Always attempt to do a move operation.
     CHECK_DUPLICATES  // Only move if the move target is different.
   };
 
+  enum RegWow64ViewOption {
+    WOW64_DEFAULT,  // Use default view for specified key.
+    WOW64_64KEY,  // Always attempt to access the 64-bit registry view.
+    WOW64_32KEY  // Always attempt to access the 32-bit registry view.
+  };
+
   // Abstract base class for the conditions used by ConditionWorkItemList.
   // TODO(robertshield): Move this out of WorkItem.
   class Condition {
    public:
     virtual ~Condition() {}
     virtual bool ShouldRun() const = 0;
   };
 
   virtual ~WorkItem();
 
   // Create a CallbackWorkItem that invokes a callback.
   static CallbackWorkItem* CreateCallbackWorkItem(
       base::Callback<bool(const CallbackWorkItem&)> callback);
 
   // Create a CopyRegKeyWorkItem that recursively copies a given registry key.
   static CopyRegKeyWorkItem* CreateCopyRegKeyWorkItem(
       HKEY predefined_root,
       const std::wstring& source_key_path,
       const std::wstring& dest_key_path,
-      CopyOverWriteOption overwrite_option);
+      CopyOverWriteOption overwrite_option,
+      RegWow64ViewOption reg_wow64_option);
 
   // Create a CopyTreeWorkItem that recursively copies a file system hierarchy
   // from source path to destination path.
   // * If overwrite_option is ALWAYS, the created CopyTreeWorkItem always
   //   overwrites files.
   // * If overwrite_option is NEW_NAME_IF_IN_USE, file is copied with an
   //   alternate name specified by alternative_path.
   static CopyTreeWorkItem* CreateCopyTreeWorkItem(
       const base::FilePath& source_path,
       const base::FilePath& dest_path,
       const base::FilePath& temp_dir,
       CopyOverWriteOption overwrite_option,
       const base::FilePath& alternative_path);
 
   // Create a CreateDirWorkItem that creates a directory at the given path.
   static CreateDirWorkItem* CreateCreateDirWorkItem(const base::FilePath& path);
 
   // Create a CreateRegKeyWorkItem that creates a registry key at the given
   // path.
   static CreateRegKeyWorkItem* CreateCreateRegKeyWorkItem(
-      HKEY predefined_root, const std::wstring& path);
+      HKEY predefined_root, const std::wstring& path,
+      RegWow64ViewOption reg_wow64_option);
 
   // Create a DeleteRegKeyWorkItem that deletes a registry key at the given
   // path.
   static DeleteRegKeyWorkItem* CreateDeleteRegKeyWorkItem(
-      HKEY predefined_root, const std::wstring& path);
+      HKEY predefined_root,
+      const std::wstring& path,
+      RegWow64ViewOption reg_wow64_option);
 
   // Create a DeleteRegValueWorkItem that deletes a registry value
   static DeleteRegValueWorkItem* CreateDeleteRegValueWorkItem(
       HKEY predefined_root,
       const std::wstring& key_path,
-      const std::wstring& value_name);
+      const std::wstring& value_name,
+      RegWow64ViewOption reg_wow64_option);
 
   // 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(
       const base::FilePath& root_path,
       const base::FilePath& temp_path,
       const std::vector<base::FilePath>& key_paths);
 
   // Create a MoveTreeWorkItem that recursively moves a file system hierarchy
   // from source path to destination path.
   static MoveTreeWorkItem* CreateMoveTreeWorkItem(
       const base::FilePath& source_path,
       const base::FilePath& dest_path,
       const base::FilePath& temp_dir,
       MoveTreeOption duplicate_option);
 
   // Create a SetRegValueWorkItem that sets a registry value with REG_SZ type
   // at the key with specified path.
   static SetRegValueWorkItem* CreateSetRegValueWorkItem(
       HKEY predefined_root,
       const std::wstring& key_path,
       const std::wstring& value_name,
       const std::wstring& value_data,
-      bool overwrite);
+      bool overwrite,
+      RegWow64ViewOption reg_wow64_option);
 
   // Create a SetRegValueWorkItem that sets a registry value with REG_DWORD type
   // at the key with specified path.
   static SetRegValueWorkItem* CreateSetRegValueWorkItem(
       HKEY predefined_root,
       const std::wstring& key_path,
       const std::wstring& value_name,
-      DWORD value_data, bool overwrite);
+      DWORD value_data, bool overwrite,
+      RegWow64ViewOption reg_wow64_option);
 
   // Create a SetRegValueWorkItem that sets a registry value with REG_QWORD type
   // at the key with specified path.
   static SetRegValueWorkItem* CreateSetRegValueWorkItem(
       HKEY predefined_root,
       const std::wstring& key_path,
       const std::wstring& value_name,
-      int64 value_data, bool overwrite);
+      int64 value_data, bool overwrite,
+      RegWow64ViewOption reg_wow64_option);
 
   // Add a SelfRegWorkItem that registers or unregisters a DLL at the
   // specified path.
   static SelfRegWorkItem* CreateSelfRegWorkItem(const std::wstring& dll_path,
                                                 bool do_register,
                                                 bool user_level_registration);
 
   // Create an empty WorkItemList. A WorkItemList can recursively contains
   // a list of WorkItems.
   static WorkItemList* CreateWorkItemList();
@@ skipping 44 matching lines @@
   WorkItem();
 
   // Specifies whether this work item my fail to complete and yet still
   // return true from Do().
   bool ignore_failure_;
 
   std::string log_message_;
 };
 
 #endif  // CHROME_INSTALLER_UTIL_WORK_ITEM_H_