Move directory creation functions to base namespace.

mojo/shell/storage.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 "mojo/shell/storage.h"
 
 #include "base/environment.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ skipping 24 matching lines @@
   CHECK(PathService::Get(base::DIR_APP_DATA, &profile_path_));
   profile_path_ = profile_path_.Append("Chromium Mojo Shell");
 #elif defined(OS_ANDROID)
   CHECK(PathService::Get(base::DIR_ANDROID_APP_DATA, &profile_path_));
   profile_path_ = profile_path_.Append(FILE_PATH_LITERAL("mojo_shell"));
 #else
   NOTIMPLEMENTED();
 #endif
 
   if (!base::PathExists(profile_path_))
-    file_util::CreateDirectory(profile_path_);
+    base::CreateDirectory(profile_path_);
 }
 
 Storage::~Storage() {
 }
 
 }  // namespace shell
 }  // namespace mojo