Cleanup: Remove unneeded base/file_util.h includes in base.

base/sync_socket_nacl.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/sync_socket.h"
 
 #include <errno.h>
 #include <limits.h>
 #include <stdio.h>
 #include <sys/types.h>
 
-#include "base/file_util.h"
 #include "base/logging.h"
 
 
 namespace base {
 
 const SyncSocket::Handle SyncSocket::kInvalidHandle = -1;
 
 SyncSocket::SyncSocket() : handle_(kInvalidHandle) {
 }
 
@@ skipping 42 matching lines @@
   return false;
 }
 
 // static
 bool CancelableSyncSocket::CreatePair(CancelableSyncSocket* socket_a,
                                       CancelableSyncSocket* socket_b) {
   return SyncSocket::CreatePair(socket_a, socket_b);
 }
 
 }  // namespace base