Introduce UpdateActiveSetupVersionWorkItem

chrome/installer/util/set_reg_value_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.
 
 #ifndef CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__
 #define CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__
 
 #include <windows.h>
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "chrome/installer/util/work_item.h"
 
 // A WorkItem subclass that sets a registry value with REG_SZ, REG_DWORD, or
 // REG_QWORD type at the specified path. The value is only set if the target key
 // exists.
 class SetRegValueWorkItem : public WorkItem {
  public:
   ~SetRegValueWorkItem() override;
 
   bool Do() override;
 
   void Rollback() override;
 
- private:
-  friend class WorkItem;
-
-  enum SettingStatus {
-    // The status before Do is called.
-    SET_VALUE,
-    // One possible outcome after Do(). A new value is created under the key.
-    NEW_VALUE_CREATED,
-    // One possible outcome after Do(). The previous value under the key has
-    // been overwritten.
-    VALUE_OVERWRITTEN,
-    // One possible outcome after Do(). No change is applied, either
-    // because we are not allowed to overwrite the previous value, or due to
-    // some errors like the key does not exist.
-    VALUE_UNCHANGED,
-    // The status after Do and Rollback is called.
-    VALUE_ROLL_BACK
-  };
-
+ protected:
   SetRegValueWorkItem(HKEY predefined_root,
                       const std::wstring& key_path,
                       REGSAM wow64_access,
                       const std::wstring& value_name,
                       const std::wstring& value_data,
                       bool overwrite);
 
   SetRegValueWorkItem(HKEY predefined_root,
                       const std::wstring& key_path,
                       REGSAM wow64_access,
                       const std::wstring& value_name,
                       DWORD value_data,
                       bool overwrite);
 
   SetRegValueWorkItem(HKEY predefined_root,
                       const std::wstring& key_path,
                       REGSAM wow64_access,
                       const std::wstring& value_name,
                       int64 value_data,
                       bool overwrite);
 
   // Implies |overwrite_| and TYPE_SZ for now.
   SetRegValueWorkItem(HKEY predefined_root,
                       const std::wstring& key_path,
                       REGSAM wow64_access,
                       const std::wstring& value_name,
                       const GetValueFromExistingCallback& get_value_callback);
 
+ private:
+  friend class WorkItem;
+
+  enum SettingStatus {
+    // The status before Do is called.
+    SET_VALUE,
+    // One possible outcome after Do(). A new value is created under the key.
+    NEW_VALUE_CREATED,
+    // One possible outcome after Do(). The previous value under the key has
+    // been overwritten.
+    VALUE_OVERWRITTEN,
+    // One possible outcome after Do(). No change is applied, either
+    // because we are not allowed to overwrite the previous value, or due to
+    // some errors like the key does not exist.
+    VALUE_UNCHANGED,
+    // The status after Do and Rollback is called.
+    VALUE_ROLL_BACK
+  };
+
   // Root key of the target key under which the value is set. The root key can
   // only be one of the predefined keys on Windows.
   HKEY predefined_root_;
 
   // Path of the target key under which the value is set.
   std::wstring key_path_;
 
   // Name of the value to be set.
   std::wstring value_name_;
 
@@ skipping 10 matching lines @@
   // Type of data to store
   DWORD type_;
   std::vector<uint8> value_;
   DWORD previous_type_;
   std::vector<uint8> previous_value_;
 
   SettingStatus status_;
 };
 
 #endif  // CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__