Move directory creation functions to base namespace.

chrome/browser/prefs/pref_functional_browsertest.cc

 // Copyright 2013 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 <string>
 
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
@@ skipping 41 matching lines @@
   base::FilePath new_download_dir = download_dir.AppendASCII("my_downloads");
   base::FilePath downloaded_pkg =
       new_download_dir.AppendASCII("a_zip_file.zip");
 
   // If the directory exists, delete it.
   if (base::PathExists(new_download_dir)) {
     base::DeleteFile(new_download_dir, true);
   }
 
   // Create the new downloads directory.
-  file_util::CreateDirectory(new_download_dir);
+  base::CreateDirectory(new_download_dir);
   // Set pref to download in new_download_dir.
   browser()->profile()->GetPrefs()->SetFilePath(
       prefs::kDownloadDefaultDirectory,
       new_download_dir);
 
   // Create a downloads observer.
   scoped_ptr<content::DownloadTestObserver> downloads_observer(
       CreateWaiter(browser(), 1));
   ui_test_utils::NavigateToURL(
       browser(),
@@ skipping 173 matching lines @@
   EXPECT_FALSE(prefs->GetBoolean(prefs::kSafeBrowsingEnabled));
   EXPECT_FALSE(prefs->GetBoolean(prefs::kAlternateErrorPagesEnabled));
   EXPECT_FALSE(prefs->GetBoolean(prefs::kSearchSuggestEnabled));
 }
 
 // Verify that we have some Local State prefs.
 IN_PROC_BROWSER_TEST_F(PrefsFunctionalTest, TestHaveLocalStatePrefs) {
   EXPECT_TRUE(g_browser_process->local_state()->GetPreferenceValues().get());
 }