NaCl Linux: create NaClSandbox class

components/nacl.gyp

 # Copyright 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'nacl/nacl_defines.gypi',
@@ skipping 207 matching lines @@
               'include_dirs': [
                 '..',
               ],
               'defines': [
                 '<@(nacl_defines)',
                 # Allow .cc files to know if they're being compiled as part
                 # of nacl_helper.
                 'IN_NACL_HELPER=1',
               ],
               'sources': [
-                'nacl/loader/nacl_sandbox_linux.cc',
                 'nacl/loader/nonsfi/abi_conversion.cc',
                 'nacl/loader/nonsfi/abi_conversion.h',
                 'nacl/loader/nonsfi/elf_loader.cc',
                 'nacl/loader/nonsfi/elf_loader.h',
                 'nacl/loader/nonsfi/irt_basic.cc',
                 'nacl/loader/nonsfi/irt_clock.cc',
                 'nacl/loader/nonsfi/irt_fdio.cc',
                 'nacl/loader/nonsfi/irt_futex.cc',
                 'nacl/loader/nonsfi/irt_interfaces.cc',
                 'nacl/loader/nonsfi/irt_interfaces.h',
                 'nacl/loader/nonsfi/irt_memory.cc',
                 'nacl/loader/nonsfi/irt_ppapi.cc',
                 'nacl/loader/nonsfi/irt_random.cc',
                 'nacl/loader/nonsfi/irt_thread.cc',
                 'nacl/loader/nonsfi/irt_util.h',
                 'nacl/loader/nonsfi/nonsfi_main.cc',
                 'nacl/loader/nonsfi/nonsfi_main.h',
                 'nacl/loader/nonsfi/nonsfi_sandbox.cc',
                 'nacl/loader/nonsfi/nonsfi_sandbox.h',
+                'nacl/loader/sandbox_linux/nacl_bpf_sandbox_linux.cc',
+                'nacl/loader/sandbox_linux/nacl_sandbox_linux.cc',
                 '../ppapi/nacl_irt/manifest_service.cc',
                 '../ppapi/nacl_irt/manifest_service.h',
                 '../ppapi/nacl_irt/plugin_main.cc',
                 '../ppapi/nacl_irt/plugin_main.h',
                 '../ppapi/nacl_irt/plugin_startup.cc',
                 '../ppapi/nacl_irt/plugin_startup.h',
                 '../ppapi/nacl_irt/ppapi_dispatcher.cc',
                 '../ppapi/nacl_irt/ppapi_dispatcher.h',
               ],
               'dependencies': [
@@ skipping 192 matching lines @@
       ],
       'include_dirs': [
         '..',
       ],
       'dependencies': [
         '../content/content.gyp:content_common',
       ],
     },
   ]
 }