Consistently use namespaced base::Version in chrome/installer.

chrome/installer/setup/uninstall.cc

 // 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 defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include <windows.h>
 #include <stddef.h>
@@ skipping 147 matching lines @@
 }
 
 // Processes uninstall WorkItems from install_worker in no-rollback-list.
 void ProcessChromeWorkItems(const InstallerState& installer_state,
                             const Product& product) {
   std::unique_ptr<WorkItemList> work_item_list(WorkItem::CreateWorkItemList());
   work_item_list->set_log_message(
       "Cleanup OS upgrade command and deprecated per-user registrations");
   work_item_list->set_best_effort(true);
   work_item_list->set_rollback_enabled(false);
-  AddOsUpgradeWorkItems(installer_state, base::FilePath(), Version(), product,
-                        work_item_list.get());
+  AddOsUpgradeWorkItems(installer_state, base::FilePath(), base::Version(),
+                        product, work_item_list.get());
   // Perform a best-effort cleanup of per-user keys. On system-level installs
   // this will only cleanup keys for the user running the uninstall but it was
   // considered that this was good enough (better than triggering Active Setup
   // for all users solely for this cleanup).
   AddCleanupDeprecatedPerUserRegistrationsWorkItems(product,
                                                     work_item_list.get());
   work_item_list->Do();
 }
 
 void ProcessIELowRightsPolicyWorkItems(const InstallerState& installer_state) {
@@ skipping 1193 matching lines @@
     // If we need a reboot to continue, schedule the parent directories for
     // deletion unconditionally. If they are not empty, the session manager
     // will not delete them on reboot.
     ScheduleParentAndGrandparentForDeletion(target_path);
   } else if (DeleteChromeDirectoriesIfEmpty(target_path) == DELETE_FAILED) {
     *uninstall_status = UNINSTALL_FAILED;
   }
 }
 
 }  // namespace installer