Move directory creation functions to base namespace.

chrome/browser/chromeos/extensions/wallpaper_api.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 "chrome/browser/chromeos/extensions/wallpaper_api.h"
 
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/path_service.h"
@@ skipping 144 matching lines @@
     SendResponse(true);
   }
 }
 
 void WallpaperSetWallpaperFunction::GenerateThumbnail(
     const base::FilePath& thumbnail_path, scoped_ptr<gfx::ImageSkia> image) {
   DCHECK(BrowserThread::GetBlockingPool()->IsRunningSequenceOnCurrentThread(
       sequence_token_));
   chromeos::UserImage wallpaper(*image.get());
   if (!base::PathExists(thumbnail_path.DirName()))
-    file_util::CreateDirectory(thumbnail_path.DirName());
+    base::CreateDirectory(thumbnail_path.DirName());
 
   scoped_refptr<base::RefCountedBytes> data;
   chromeos::WallpaperManager::Get()->ResizeWallpaper(
       wallpaper,
       ash::WALLPAPER_LAYOUT_STRETCH,
       ash::kWallpaperThumbnailWidth,
       ash::kWallpaperThumbnailHeight,
       &data);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
@@ skipping 13 matching lines @@
 void WallpaperSetWallpaperFunction::OnWallpaperFetched(
     net::URLRequestStatus::Status status, const std::string& response) {
   if (status == net::URLRequestStatus::SUCCESS) {
     params_->details.wallpaper_data.reset(new std::string(response));
     StartDecode(*params_->details.wallpaper_data);
   } else {
     SetError(response);
     SendResponse(false);
   }
 }