Linux sandbox: restrict futex operations.

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 239 matching lines @@
         }],
       ],
       'include_dirs': [
         '..',
       ],
     },
     { 'target_name': 'sandbox_services_headers',
       'type': 'none',
       'sources': [
         'services/android_arm_ucontext.h',
+        'services/android_futex.h',
         'services/android_ucontext.h',
         'services/android_i386_ucontext.h',
         'services/arm_linux_syscalls.h',
         'services/linux_syscalls.h',
         'services/x86_32_linux_syscalls.h',
         'services/x86_64_linux_syscalls.h',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 61 matching lines @@
         },
         'dependencies': [
           'sandbox_linux_jni_unittests',
         ],
         'includes': [ '../../build/apk_test.gypi' ],
         }
       ],
     }],
   ],
 }