Cleanup: Use base/files/file_util.h instead of base/file_util.h in apps/ and extensions/

apps/app_shim/unix_domain_socket_acceptor.cc

 // Copyright 2014 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 "apps/app_shim/unix_domain_socket_acceptor.h"
 
-#include "base/file_util.h"
+#include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
 #include "base/logging.h"
 #include "ipc/unix_domain_socket_util.h"
 
 namespace apps {
 
 UnixDomainSocketAcceptor::UnixDomainSocketAcceptor(const base::FilePath& path,
                                                    Delegate* delegate)
     : path_(path), delegate_(delegate), listen_fd_(-1) {
   DCHECK(delegate_);
@@ skipping 63 matching lines @@
     PLOG(ERROR) << "close";
   listen_fd_ = -1;
   if (unlink(path_.value().c_str()) < 0)
     PLOG(ERROR) << "unlink";
 
   // Unregister libevent for the listening socket and close it.
   server_listen_connection_watcher_.StopWatchingFileDescriptor();
 }
 
 }  // namespace apps