Update from chromium https://crrev.com/301725/

net/cert/multi_threaded_cert_verifier_unittest.cc

Index: net/cert/multi_threaded_cert_verifier_unittest.cc
diff --git a/net/cert/multi_threaded_cert_verifier_unittest.cc b/net/cert/multi_threaded_cert_verifier_unittest.cc
index bac47b0a40dccebc70018d3d5dde3c79a0b6608e..a3464e0496a59747c8123c48488e3f1f25fddd18 100644
--- a/net/cert/multi_threaded_cert_verifier_unittest.cc
+++ b/net/cert/multi_threaded_cert_verifier_unittest.cc
@@ -67,7 +67,7 @@ class MockCertTrustAnchorProvider : public CertTrustAnchorProvider {
 class MultiThreadedCertVerifierTest : public ::testing::Test {
  public:
   MultiThreadedCertVerifierTest() : verifier_(new MockCertVerifyProc()) {}
-  virtual ~MultiThreadedCertVerifierTest() {}
+  ~MultiThreadedCertVerifierTest() override {}
 
  protected:
   MultiThreadedCertVerifier verifier_;