Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/chromeos/system/automatic_reboot_manager.cc

 // Copyright (c) 2013 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/chromeos/system/automatic_reboot_manager.h"
 
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 
@@ skipping 99 matching lines @@
 
   int fd = HANDLE_EINTR(open(update_reboot_needed_uptime_file.value().c_str(),
                              O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW,
                              0666));
   if (fd < 0)
     return;
   file_util::ScopedFD fd_closer(&fd);
 
   std::string update_reboot_needed_uptime =
       base::DoubleToString(uptime.InSecondsF());
-  file_util::WriteFileDescriptor(fd,
-                                 update_reboot_needed_uptime.c_str(),
-                                 update_reboot_needed_uptime.size());
+  base::WriteFileDescriptor(fd, update_reboot_needed_uptime.c_str(),
+                            update_reboot_needed_uptime.size());
 }
 
 }  // namespace
 
 AutomaticRebootManager::SystemEventTimes::SystemEventTimes()
     : has_boot_time(false),
       has_update_reboot_needed_time(false) {
 }
 
 AutomaticRebootManager::SystemEventTimes::SystemEventTimes(
@@ skipping 277 matching lines @@
   }
 
   login_screen_idle_timer_.reset();
   grace_start_timer_.reset();
   grace_end_timer_.reset();
   DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
 }
 
 }  // namespace system
 }  // namespace chromeos