Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/public/c/lib/mojio_sys_stat.cc

-// Copyright 2015 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 "files/public/c/mojio_sys_stat.h"
-
-#include "files/public/c/lib/fd_impl.h"
-#include "files/public/c/lib/fd_table.h"
-#include "files/public/c/lib/singletons.h"
-
-namespace mojio {
-namespace {
-
-int FstatImpl(int fd, struct mojio_stat* buf) {
-  FDImpl* fd_impl = singletons::GetFDTable()->Get(fd);
-  if (!fd_impl)
-    return -1;
-
-  return fd_impl->Fstat(buf) ? 0 : -1;
-}
-
-}  // namespace
-}  // namespace mojio
-
-extern "C" {
-
-int mojio_fstat(int fd, struct mojio_stat* buf) {
-  return mojio::FstatImpl(fd, buf);
-}
-
-}  // extern "C"