Update from https://crrev.com/306655

sandbox/linux/services/syscall_wrappers.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 "sandbox/linux/services/syscall_wrappers.h"
 
 #include <sys/syscall.h>
 #include <sys/types.h>
 #include <unistd.h>
 
@@ skipping 38 matching lines @@
     defined(ARCH_CPU_MIPS_FAMILY) || defined(ARCH_CPU_MIPS64_FAMILY)
   // CONFIG_CLONE_BACKWARDS defined.
   return syscall(__NR_clone, flags, child_stack, ptid, tls, ctid);
 #endif
 }
 
 void sys_exit_group(int status) {
   syscall(__NR_exit_group, status);
 }
 
+int sys_seccomp(unsigned int operation,
+                unsigned int flags,
+                const struct sock_fprog* args) {
+  return syscall(__NR_seccomp, operation, flags, args);
+}
+
 }  // namespace sandbox