Move directory creation functions to base namespace.

chrome/browser/sessions/session_backend.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/browser/sessions/session_backend.h"
 
 #include <limits>
 
 #include "base/file_util.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 200 matching lines @@
   // NOTE: this is invoked on the main thread, don't do file access here.
 }
 
 void SessionBackend::Init() {
   if (inited_)
     return;
 
   inited_ = true;
 
   // Create the directory for session info.
-  file_util::CreateDirectory(path_to_dir_);
+  base::CreateDirectory(path_to_dir_);
 
   MoveCurrentSessionToLastSession();
 }
 
 void SessionBackend::AppendCommands(
     std::vector<SessionCommand*>* commands,
     bool reset_first) {
   Init();
   // Make sure and check current_session_file_, if opening the file failed
   // current_session_file_ will be NULL.
@@ skipping 166 matching lines @@
 }
 
 base::FilePath SessionBackend::GetCurrentSessionPath() {
   base::FilePath path = path_to_dir_;
   if (type_ == BaseSessionService::TAB_RESTORE)
     path = path.AppendASCII(kCurrentTabSessionFileName);
   else
     path = path.AppendASCII(kCurrentSessionFileName);
   return path;
 }