Move directory creation functions to base namespace.

ui/base/ui_base_paths.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 "ui/base/ui_base_paths.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 45 matching lines @@
       if (!PathService::Get(base::DIR_ANDROID_APP_DATA, &cur))
         return false;
       cur = cur.Append(FILE_PATH_LITERAL("paks"));
       break;
 #endif
     default:
       return false;
   }
 
   if (create_dir && !base::PathExists(cur) &&
-      !file_util::CreateDirectory(cur))
+      !base::CreateDirectory(cur))
     return false;
 
   *result = cur;
   return true;
 }
 
 // This cannot be done as a static initializer sadly since Visual Studio will
 // eliminate this object file if there is no direct entry point into it.
 void RegisterPathProvider() {
   PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
 }
 
 }  // namespace ui