Move webkit/fileapi/file_system_mount_point_provider.h to webkit/browser/fileapi

webkit/fileapi/file_system_file_util.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 "webkit/fileapi/file_system_file_util.h"
-
-namespace fileapi {
-
-base::FilePath FileSystemFileUtil::EmptyFileEnumerator::Next() {
-  return base::FilePath();
-}
-
-int64 FileSystemFileUtil::EmptyFileEnumerator::Size() {
-  return 0;
-}
-
-base::Time FileSystemFileUtil::EmptyFileEnumerator::LastModifiedTime() {
-  return base::Time();
-}
-
-bool FileSystemFileUtil::EmptyFileEnumerator::IsDirectory() {
-  return false;
-}
-
-}  // namespace fileapi