Temp dir cleanup:...

chrome/installer/setup/uninstall.cc

 // 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.
 //
 // This file defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 672 matching lines @@
       std::wstring reg_path(installer::kMediaPlayerRegPath);
       file_util::AppendToPath(&reg_path, installer::kChromeExe);
       InstallUtil::DeleteRegistryKey(hklm_key, reg_path);
     }
 
     // Unregister any dll servers that we may have registered for this
     // product.
     if (product_state != NULL) {
       std::vector<FilePath> com_dll_list;
       product.AddComDllList(&com_dll_list);
-      FilePath dll_folder = installer_state.target_path().Append(
-          UTF8ToWide(product_state->version().GetString()));
+      FilePath dll_folder = installer_state.target_path().AppendASCII(
+          product_state->version().GetString());
 
       scoped_ptr<WorkItemList> unreg_work_item_list(
           WorkItem::CreateWorkItemList());
 
       AddRegisterComDllWorkItems(dll_folder,
                                  com_dll_list,
                                  installer_state.system_install(),
                                  false,  // Unregister
                                  true,   // May fail
                                  unreg_work_item_list.get());
@@ skipping 82 matching lines @@
 
   // Try and delete the preserved local state once the post-install
   // operations are complete.
   if (!backup_state_file.empty())
     file_util::Delete(backup_state_file, false);
 
   return ret;
 }
 
 }  // namespace installer