Update from https://crrev.com/315085

sandbox/linux/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//testing/test.gni")
 
 declare_args() {
   compile_suid_client = is_linux
 
@@ skipping 76 matching lines @@
     "//base/test:test_support",
     "//testing/gtest",
   ]
 
   if (is_linux) {
     # Don't use this on Android.
     libs = [ "rt" ]
   }
 
   if (compile_suid_client) {
-    sources += [ "suid/client/setuid_sandbox_client_unittest.cc" ]
+    sources += [
+      "suid/client/setuid_sandbox_client_unittest.cc",
+      "suid/client/setuid_sandbox_host_unittest.cc",
+    ]
   }
   if (use_seccomp_bpf) {
     sources += [
       "bpf_dsl/bpf_dsl_more_unittest.cc",
       "bpf_dsl/bpf_dsl_unittest.cc",
+      "bpf_dsl/codegen_unittest.cc",
       "bpf_dsl/cons_unittest.cc",
+      "bpf_dsl/syscall_set_unittest.cc",
       "seccomp-bpf-helpers/baseline_policy_unittest.cc",
       "seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc",
       "seccomp-bpf/bpf_tests_unittest.cc",
-      "seccomp-bpf/codegen_unittest.cc",
       "seccomp-bpf/errorcode_unittest.cc",
       "seccomp-bpf/sandbox_bpf_unittest.cc",
-      "seccomp-bpf/syscall_iterator_unittest.cc",
       "seccomp-bpf/syscall_unittest.cc",
     ]
   }
   if (compile_credentials) {
     sources += [
       "services/credentials_unittest.cc",
       "services/namespace_sandbox_unittest.cc",
       "services/namespace_utils_unittest.cc",
       "services/proc_util_unittest.cc",
       "services/unix_domain_socket_unittest.cc",
@@ skipping 18 matching lines @@
 #        }],
 #      ],
 #    },
 
 component("seccomp_bpf") {
   sources = [
     "bpf_dsl/bpf_dsl.cc",
     "bpf_dsl/bpf_dsl.h",
     "bpf_dsl/bpf_dsl_forward.h",
     "bpf_dsl/bpf_dsl_impl.h",
+    "bpf_dsl/codegen.cc",
+    "bpf_dsl/codegen.h",
     "bpf_dsl/cons.h",
     "bpf_dsl/dump_bpf.cc",
     "bpf_dsl/dump_bpf.h",
     "bpf_dsl/policy.cc",
     "bpf_dsl/policy.h",
     "bpf_dsl/policy_compiler.cc",
     "bpf_dsl/policy_compiler.h",
+    "bpf_dsl/syscall_set.cc",
+    "bpf_dsl/syscall_set.h",
     "bpf_dsl/trap_registry.h",
-    "seccomp-bpf/codegen.cc",
-    "seccomp-bpf/codegen.h",
     "seccomp-bpf/die.cc",
     "seccomp-bpf/die.h",
     "seccomp-bpf/errorcode.cc",
     "seccomp-bpf/errorcode.h",
     "seccomp-bpf/linux_seccomp.h",
     "seccomp-bpf/sandbox_bpf.cc",
     "seccomp-bpf/sandbox_bpf.h",
     "seccomp-bpf/syscall.cc",
     "seccomp-bpf/syscall.h",
-    "seccomp-bpf/syscall_iterator.cc",
-    "seccomp-bpf/syscall_iterator.h",
     "seccomp-bpf/trap.cc",
     "seccomp-bpf/trap.h",
     "seccomp-bpf/verifier.cc",
     "seccomp-bpf/verifier.h",
   ]
   defines = [ "SANDBOX_IMPLEMENTATION" ]
 
   deps = [
     ":sandbox_services",
     ":sandbox_services_headers",
@@ skipping 119 matching lines @@
   ]
 }
 
 if (compile_suid_client) {
   component("suid_sandbox_client") {
     sources = [
       "suid/common/sandbox.h",
       "suid/common/suid_unsafe_environment_variables.h",
       "suid/client/setuid_sandbox_client.cc",
       "suid/client/setuid_sandbox_client.h",
+      "suid/client/setuid_sandbox_host.cc",
+      "suid/client/setuid_sandbox_host.h",
     ]
     defines = [ "SANDBOX_IMPLEMENTATION" ]
 
     deps = [
       ":sandbox_services",
       "//base",
     ]
   }
 }
 
@@ skipping 22 matching lines @@
   #      'type': 'none',
   #      'variables': {
   #        'test_suite_name': 'sandbox_linux_jni_unittests',
   #      },
   #      'dependencies': [
   #        'sandbox_linux_jni_unittests',
   #      ],
   #      'includes': [ '../../build/apk_test.gypi' ],
   #      }
 }