Rewrite base::Bind into base::BindOnce on trivial cases in base

base/files/file_util_proxy.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 "base/files/file_util_proxy.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
@@ skipping 41 matching lines @@
 
 // Retrieves the information about a file. It is invalid to pass NULL for the
 // callback.
 bool FileUtilProxy::GetFileInfo(
     TaskRunner* task_runner,
     const FilePath& file_path,
     const GetFileInfoCallback& callback) {
   GetFileInfoHelper* helper = new GetFileInfoHelper;
   return task_runner->PostTaskAndReply(
       FROM_HERE,
-      Bind(&GetFileInfoHelper::RunWorkForFilePath,
-           Unretained(helper), file_path),
-      Bind(&GetFileInfoHelper::Reply, Owned(helper), callback));
+      BindOnce(&GetFileInfoHelper::RunWorkForFilePath, Unretained(helper),
+               file_path),
+      BindOnce(&GetFileInfoHelper::Reply, Owned(helper), callback));
 }
 
 // static
 bool FileUtilProxy::Touch(
     TaskRunner* task_runner,
     const FilePath& file_path,
     const Time& last_access_time,
     const Time& last_modified_time,
     const StatusCallback& callback) {
   return base::PostTaskAndReplyWithResult(
       task_runner,
       FROM_HERE,
       Bind(&TouchFile, file_path, last_access_time, last_modified_time),
       Bind(&CallWithTranslatedParameter, callback));
 }
 
 }  // namespace base