Linux sandbox: change seccomp detection and initialization.

components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc

Index: components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc
diff --git a/components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc b/components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc
index ab918cb8bc42ecce809feb4c9ebce2ecdbb44522..7ec18a417177d76c19ced467e49bd1504f6b15ec 100644
--- a/components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc
+++ b/components/nacl/loader/nonsfi/nonsfi_sandbox_unittest.cc
@@ -59,9 +59,8 @@ void DoSocketpair(base::ScopedFD* fds) {
 }
 
 TEST(NaClNonSfiSandboxTest, BPFIsSupported) {
-  bool seccomp_bpf_supported = (
-      sandbox::SandboxBPF::SupportsSeccompSandbox() ==
-      sandbox::SandboxBPF::STATUS_AVAILABLE);
+  bool seccomp_bpf_supported = sandbox::SandboxBPF::SupportsSeccompSandbox() &
+                               sandbox::SandboxBPF::SECCOMP_SINGLE_THREADED;
   if (!seccomp_bpf_supported) {
     LOG(ERROR) << "Seccomp BPF is not supported, these tests "
                << "will pass without running";