Update from https://crrev.com/309717

sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h

Index: sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h
diff --git a/sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h b/sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h
index 5d6b37460071a4c0afab7774ac0112d31527c551..fef6240d74ee7eb56dfbba88ae80e308aad20b51 100644
--- a/sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h
+++ b/sandbox/linux/seccomp-bpf/sandbox_bpf_test_runner.h
@@ -45,11 +45,11 @@ class SandboxBPFTestRunner : public SandboxTestRunner {
   // This constructor takes ownership of the |bpf_tester_delegate| object.
   // (It doesn't take a scoped_ptr since they make polymorphism verbose).
   explicit SandboxBPFTestRunner(BPFTesterDelegate* bpf_tester_delegate);
-  virtual ~SandboxBPFTestRunner();
+  ~SandboxBPFTestRunner() override;
 
-  virtual void Run() override;
+  void Run() override;
 
-  virtual bool ShouldCheckForLeaks() const override;
+  bool ShouldCheckForLeaks() const override;
 
  private:
   scoped_ptr<BPFTesterDelegate> bpf_tester_delegate_;