Linux sandbox: change seccomp detection and initialization.

content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc

Index: content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc
diff --git a/content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc b/content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc
index 6646e8235c21c545dfe4372b6aba94bf64553093..f9d24a29200ed667f290b564621b55573dd6ede5 100644
--- a/content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc
+++ b/content/common/sandbox_linux/sandbox_seccomp_bpf_linux.cc
@@ -158,7 +158,7 @@ void StartSandboxWithPolicy(sandbox::bpf_dsl::Policy* policy,
   sandbox.SetSandboxPolicy(policy);
 
   sandbox.set_proc_task_fd(proc_task_fd.release());
-  CHECK(sandbox.StartSandbox(SandboxBPF::PROCESS_SINGLE_THREADED));
+  CHECK(sandbox.StartSandbox(SandboxBPF::SECCOMP_SINGLE_THREADED));
 }
 
 // nacl_helper needs to be tiny and includes only part of content/
@@ -253,9 +253,8 @@ bool SandboxSeccompBPF::ShouldEnableSeccompBPF(
 
 bool SandboxSeccompBPF::SupportsSandbox() {
 #if defined(USE_SECCOMP_BPF)
-  SandboxBPF::SandboxStatus bpf_sandbox_status =
-      SandboxBPF::SupportsSeccompSandbox();
-  if (bpf_sandbox_status == SandboxBPF::STATUS_AVAILABLE) {
+  int bpf_sandbox_status = SandboxBPF::SupportsSeccompSandbox();
+  if (bpf_sandbox_status & SandboxBPF::SECCOMP_SINGLE_THREADED) {
     return true;
   }
 #endif