Move directory creation functions to base namespace.

chrome/installer/setup/setup_main.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.
 
 #include "chrome/installer/setup/setup_main.h"
 
 #include <windows.h>
 #include <msi.h>
 #include <shellapi.h>
 #include <shlobj.h>
@@ skipping 882 matching lines @@
 
 // Creates the sentinel indicating that the EULA was required and has been
 // accepted.
 bool CreateEULASentinel(BrowserDistribution* dist) {
   base::FilePath eula_sentinel;
   if (!InstallUtil::GetSentinelFilePath(installer::kEULASentinelFile,
                                         dist, &eula_sentinel)) {
     return false;
   }
 
-  return (file_util::CreateDirectory(eula_sentinel.DirName()) &&
+  return (base::CreateDirectory(eula_sentinel.DirName()) &&
           file_util::WriteFile(eula_sentinel, "", 0) != -1);
 }
 
 void ActivateMetroChrome() {
   // Check to see if we're per-user or not. Need to do this since we may
   // not have been invoked with --system-level even for a machine install.
   wchar_t exe_path[MAX_PATH * 2] = {};
   GetModuleFileName(NULL, exe_path, arraysize(exe_path));
   bool is_per_user_install = InstallUtil::IsPerUserInstall(exe_path);
 
@@ skipping 945 matching lines @@
     // Call the newly updated setup.exe with kUncompressedArchive and
     // kMigrateChromeFrame to perform the migration.
     LaunchChromeFrameMigrationProcess(*chrome_frame_state, cmd_line,
                                       installer_directory, system_install);
   }
 
   VLOG(1) << "Installation complete, returning: " << return_code;
 
   return return_code;
 }