Update Chrome's Active Setup version per component instead of as a single string.

chrome/installer/setup/install_worker.h

 // Copyright (c) 2012 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.
 //
 // This file contains the declarations of the installer functions that build
 // the WorkItemList used to install the application.
 
 #ifndef CHROME_INSTALLER_SETUP_INSTALL_WORKER_H_
 #define CHROME_INSTALLER_SETUP_INSTALL_WORKER_H_
 
@@ skipping 132 matching lines @@
                                  const base::Version& new_version,
                                  const Product& product,
                                  WorkItemList* list);
 
 // Adds Active Setup registration for sytem-level setup to be called by Windows
 // on user-login post-install/update.
 // This method should be called for installation only.
 // |product|: The product being installed. This method is a no-op if this is
 // anything other than system-level Chrome/Chromium.
 void AddActiveSetupWorkItems(const InstallerState& installer_state,
-                             const base::FilePath& setup_path,
                              const base::Version& new_version,
                              const Product& product,
                              WorkItemList* list);
 
 // Unregisters the "opv" version of ChromeLauncher from IE's low rights
 // elevation policy.
 void AddDeleteOldIELowRightsPolicyWorkItems(
     const InstallerState& installer_state,
     WorkItemList* install_list);
 
@@ skipping 16 matching lines @@
                            WorkItemList* install_list);
 
 // Adds work items to remove "quick-enable-cf" from the multi-installer
 // binaries' version key.
 void AddQuickEnableChromeFrameWorkItems(const InstallerState& installer_state,
                                         WorkItemList* work_item_list);
 
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_SETUP_INSTALL_WORKER_H_