Move AppendFile and *CurrentDirectory to the base namespace.

chrome/browser/media_galleries/linux/mtp_read_file_worker.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/media_galleries/linux/mtp_read_file_worker.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/numerics/safe_conversions.h"
@@ skipping 10 matching lines @@
 
 // Appends |data| to the snapshot file specified by the |snapshot_file_path| on
 // the file thread.
 // Returns the number of bytes written to the snapshot file. In case of failure,
 // returns zero.
 uint32 WriteDataChunkIntoSnapshotFileOnFileThread(
     const base::FilePath& snapshot_file_path,
     const std::string& data) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
   int bytes_written =
-      file_util::AppendToFile(snapshot_file_path, data.data(),
-                              base::checked_cast<int>(data.size()));
+      base::AppendToFile(snapshot_file_path, data.data(),
+                         base::checked_cast<int>(data.size()));
   return (static_cast<int>(data.size()) == bytes_written) ?
       base::checked_cast<uint32>(bytes_written) : 0;
 }
 
 }  // namespace
 
 MTPReadFileWorker::MTPReadFileWorker(const std::string& device_handle)
     : device_handle_(device_handle),
       weak_ptr_factory_(this) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
@@ skipping 89 matching lines @@
                    base::File::FILE_ERROR_FAILED));
     return;
   }
   content::BrowserThread::PostTask(
       content::BrowserThread::IO,
       FROM_HERE,
       base::Bind(snapshot_file_details->success_callback(),
                  snapshot_file_details->file_info(),
                  snapshot_file_details->snapshot_file_path()));
 }