Move directory creation functions to base namespace.

chrome/browser/extensions/convert_web_app.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/extensions/convert_web_app.h"
 
 #include <cmath>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 135 matching lines @@
   // Write the manifest.
   base::FilePath manifest_path = temp_dir.path().Append(kManifestFilename);
   JSONFileValueSerializer serializer(manifest_path);
   if (!serializer.Serialize(*root)) {
     LOG(ERROR) << "Could not serialize manifest.";
     return NULL;
   }
 
   // Write the icon files.
   base::FilePath icons_dir = temp_dir.path().AppendASCII(kIconsDirName);
-  if (!file_util::CreateDirectory(icons_dir)) {
+  if (!base::CreateDirectory(icons_dir)) {
     LOG(ERROR) << "Could not create icons directory.";
     return NULL;
   }
   for (size_t i = 0; i < web_app.icons.size(); ++i) {
     // Skip unfetched bitmaps.
     if (web_app.icons[i].data.config() == SkBitmap::kNo_Config)
       continue;
 
     base::FilePath icon_file = icons_dir.AppendASCII(
         base::StringPrintf("%i.png", web_app.icons[i].width));
@@ skipping 27 matching lines @@
   if (!extension.get()) {
     LOG(ERROR) << error;
     return NULL;
   }
 
   temp_dir.Take();  // The caller takes ownership of the directory.
   return extension;
 }
 
 }  // namespace extensions