Add domain-specific language for BPF policies

sandbox/linux/sandbox_linux.gypi

 # 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.
 
 {
   'variables': {
     'conditions': [
       ['OS=="linux"', {
         'compile_suid_client': 1,
         'compile_credentials': 1,
@@ skipping 140 matching lines @@
       'include_dirs': [
         '../..',
       ],
     },
     {
       'target_name': 'seccomp_bpf_helpers',
       'type': '<(component)',
       'sources': [
         'seccomp-bpf-helpers/baseline_policy.cc',
         'seccomp-bpf-helpers/baseline_policy.h',
+        'seccomp-bpf-helpers/bpf_dsl.cc',
+        'seccomp-bpf-helpers/bpf_dsl.h',
+        'seccomp-bpf-helpers/cons.h',
         'seccomp-bpf-helpers/sigsys_handlers.cc',
         'seccomp-bpf-helpers/sigsys_handlers.h',
         'seccomp-bpf-helpers/syscall_parameters_restrictions.cc',
         'seccomp-bpf-helpers/syscall_parameters_restrictions.h',
         'seccomp-bpf-helpers/syscall_sets.cc',
         'seccomp-bpf-helpers/syscall_sets.h',
       ],
       'dependencies': [
         '../base/base.gyp:base',
         'seccomp_bpf',
@@ skipping 186 matching lines @@
             '../sandbox_linux_unittests.isolate',
           ],
           'sources': [
             '../sandbox_linux_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }