Move file_util::Delete to the base namespace

chrome/browser/chromeos/drive/file_system/download_operation.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/drive/file_system/download_operation.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/task_runner_util.h"
@@ skipping 178 matching lines @@
     internal::FileCache* cache,
     const std::string& resource_id,
     const std::string& md5,
     google_apis::GDataErrorCode gdata_error,
     const base::FilePath& downloaded_file_path,
     base::FilePath* cache_file_path) {
   DCHECK(cache);
 
   FileError error = util::GDataToFileError(gdata_error);
   if (error != FILE_ERROR_OK) {
-    file_util::Delete(downloaded_file_path, false /* recursive */);
+    base::Delete(downloaded_file_path, false /* recursive */);
     return error;
   }
 
   // Here the download is completed successfully, so store it into the cache.
   error = cache->Store(resource_id, md5, downloaded_file_path,
                        internal::FileCache::FILE_OPERATION_MOVE);
   if (error != FILE_ERROR_OK) {
-    file_util::Delete(downloaded_file_path, false /* recursive */);
+    base::Delete(downloaded_file_path, false /* recursive */);
     return error;
   }
 
   return cache->GetFile(resource_id, md5, cache_file_path);
 }
 
 }  // namespace
 
 class DownloadOperation::DownloadCallback {
  public:
@@ skipping 315 matching lines @@
   observer_->OnDirectoryChangedByOperation(file_path.DirName());
   callback.OnComplete(*cache_file_path, entry.Pass());
 }
 
 void DownloadOperation::CancelJob(JobID job_id) {
   scheduler_->CancelJob(job_id);
 }
 
 }  // namespace file_system
 }  // namespace drive