Move directory creation functions to base namespace.

chrome/installer/util/create_dir_work_item.cc

 // Copyright (c) 2010 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.
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "chrome/installer/util/create_dir_work_item.h"
 #include "chrome/installer/util/logging_installer.h"
 
 CreateDirWorkItem::~CreateDirWorkItem() {
@@ skipping 18 matching lines @@
   return;
 }
 
 bool CreateDirWorkItem::Do() {
   VLOG(1) << "creating directory " << path_.value();
   GetTopDirToCreate();
   if (top_path_.empty())
     return true;
 
   VLOG(1) << "top directory that needs to be created: " << top_path_.value();
-  bool result = file_util::CreateDirectory(path_);
+  bool result = base::CreateDirectory(path_);
   VLOG(1) << "directory creation result: " << result;
 
   rollback_needed_ = true;
 
   return result;
 }
 
 void CreateDirWorkItem::Rollback() {
   if (!rollback_needed_)
     return;
@@ skipping 10 matching lines @@
       if (!RemoveDirectory(path_to_delete.value().c_str()))
         break;
     }
     if (path_to_delete == top_path_)
       break;
     path_to_delete = path_to_delete.DirName();
   }
 
   return;
 }