Force restoration of Chrome's shortcuts when Active Setup kicks in in response to a major OS upgrad…

chrome/installer/setup/update_active_setup_version_work_item.h

 // Copyright 2015 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_SETUP_UPDATE_ACTIVE_SETUP_VERSION_WORK_ITEM_H_
 #define CHROME_INSTALLER_SETUP_UPDATE_ACTIVE_SETUP_VERSION_WORK_ITEM_H_
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "chrome/installer/util/set_reg_value_work_item.h"
 #include "chrome/installer/util/work_item.h"
 
 // A WorkItem that updates (or installs if not present) the Active Setup
 // "Version" field in the registry. Optionally bumping the OS_UPGRADES component
 // on demand. This WorkItem is only viable on machine-wide installs.
 class UpdateActiveSetupVersionWorkItem : public WorkItem {
  public:
+  // The components of the Active Setup Version entry, in order.
+  enum VersionComponent {
+    // The major version.
+    MAJOR,
+    // Unused component, always 0 for now.
+    UNUSED1,
+    // Number of OS upgrades handled since original install.
+    OS_UPGRADES,
+    // Unused component, always 0 for now.
+    UNUSED2,
+  };
+
   // The operation to be performed by this UpdateActiveSetupVersionWorkItem.
   enum Operation {
     // Update (or install if not present) the Active Setup "Version" in the
     // registry.
     UPDATE,
     // Also bump the OS_UPGRADES component on top of updating the version
     // (will default to 1 if the version was absent or invalid).
     UPDATE_AND_BUMP_OS_UPGRADES_COMPONENT,
   };
 
   // Constructs an UpdateActiveSetupVersionWorkItem that will perform
   // |operation| on the |active_setup_path| key in the registry. This key needs
   // to exist when this WorkItem is ran.
   UpdateActiveSetupVersionWorkItem(const base::string16& active_setup_path,
                                    Operation operation);
 
   // Overriden from WorkItem.
   bool Do() override;
   void Rollback() override;
 
  private:
-  // The components of the Active Setup Version entry, in order.
-  enum ActiveSetupVersionComponent {
-    // The major version.
-    MAJOR,
-    // Unused component, always 0 for now.
-    UNUSED1,
-    // Number of OS upgrades handled since original install.
-    OS_UPGRADES,
-    // Unused component, always 0 for now.
-    UNUSED2,
-  };
-
   // Returns the updated Active Setup version to be used based on the
   // |existing_version|.
   base::string16 GetUpdatedActiveSetupVersion(
       const base::string16& existing_version);
 
   // The underlying WorkItem re-used to operate forward and backward on the
   // registry.
   SetRegValueWorkItem set_reg_value_work_item_;
 
   // The Operation to be performed by this WorkItem when executed.
   const Operation operation_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateActiveSetupVersionWorkItem);
 };
 
 #endif  // CHROME_INSTALLER_SETUP_UPDATE_ACTIVE_SETUP_VERSION_WORK_ITEM_H_