Fix build break of use_openssl=1 caused by strict enforcement of override checks on Linux.

net/cert/cert_verify_proc_openssl.h

Index: net/cert/cert_verify_proc_openssl.h
diff --git a/net/cert/cert_verify_proc_openssl.h b/net/cert/cert_verify_proc_openssl.h
index ab1d0a3890341b5c852b3c94ed59022140b7cee0..979d65ad10aea944ea9e0478380f61b5f42b022e 100644
--- a/net/cert/cert_verify_proc_openssl.h
+++ b/net/cert/cert_verify_proc_openssl.h
@@ -14,18 +14,18 @@ class CertVerifyProcOpenSSL : public CertVerifyProc {
  public:
   CertVerifyProcOpenSSL();
 
-  virtual bool SupportsAdditionalTrustAnchors() const override;
+  bool SupportsAdditionalTrustAnchors() const override;
 
  protected:
-  virtual ~CertVerifyProcOpenSSL();
+  ~CertVerifyProcOpenSSL() override;
 
  private:
-  virtual int VerifyInternal(X509Certificate* cert,
-                             const std::string& hostname,
-                             int flags,
-                             CRLSet* crl_set,
-                             const CertificateList& additional_trust_anchors,
-                             CertVerifyResult* verify_result) override;
+  int VerifyInternal(X509Certificate* cert,
+                     const std::string& hostname,
+                     int flags,
+                     CRLSet* crl_set,
+                     const CertificateList& additional_trust_anchors,
+                     CertVerifyResult* verify_result) override;
 };
 
 }  // namespace net