Linux Sandbox: run all BaselinePolicy tests with sanitizers.

sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.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/seccomp-bpf-helpers/baseline_policy.h"
 
 #include <errno.h>
 #include <sched.h>
 #include <signal.h>
 #include <string.h>
@@ skipping 76 matching lines @@
   BPF_ASSERT_LE(0, getuid());
 }
 
 BPF_TEST_C(BaselinePolicy, FchmodErrno, BaselinePolicy) {
   int ret = fchmod(-1, 07777);
   BPF_ASSERT_EQ(-1, ret);
   // Without the sandbox, this would EBADF instead.
   BPF_ASSERT_EQ(EPERM, errno);
 }
 
-// TODO(jln): make this work with the sanitizers.
-#if !defined(ADDRESS_SANITIZER) && !defined(THREAD_SANITIZER) && \
-    !defined(MEMORY_SANITIZER)
-
 BPF_TEST_C(BaselinePolicy, ForkErrno, BaselinePolicy) {
   errno = 0;
   pid_t pid = fork();
   const int fork_errno = errno;
   HandlePostForkReturn(pid);
 
   BPF_ASSERT_EQ(-1, pid);
   BPF_ASSERT_EQ(EPERM, fork_errno);
 }
 
@@ skipping 127 matching lines @@
 TEST_BASELINE_SIGSYS(__NR_sysinfo);
 TEST_BASELINE_SIGSYS(__NR_inotify_init);
 TEST_BASELINE_SIGSYS(__NR_init_module);
 TEST_BASELINE_SIGSYS(__NR_keyctl);
 TEST_BASELINE_SIGSYS(__NR_mq_open);
 TEST_BASELINE_SIGSYS(__NR_vserver);
 TEST_BASELINE_SIGSYS(__NR_getcpu);
 TEST_BASELINE_SIGSYS(__NR_setpgid);
 TEST_BASELINE_SIGSYS(__NR_getitimer);
 
-#endif  // !defined(ADDRESS_SANITIZER) && !defined(THREAD_SANITIZER) &&
-        // !defined(MEMORY_SANITIZER)
-
 }  // namespace
 
 }  // namespace sandbox