Optimize CT & OCSP handling code

net/cert/do_nothing_ct_verifier.h

Index: net/cert/do_nothing_ct_verifier.h
diff --git a/net/cert/do_nothing_ct_verifier.h b/net/cert/do_nothing_ct_verifier.h
index c1220e294c7b41c4a34cf188b8dd13f490d40316..025ffd11be84d88af6f544c87db36b3a79f45fb9 100644
--- a/net/cert/do_nothing_ct_verifier.h
+++ b/net/cert/do_nothing_ct_verifier.h
@@ -50,11 +50,13 @@ class NET_EXPORT DoNothingCTVerifier : public CTVerifier {
   DoNothingCTVerifier();
   ~DoNothingCTVerifier() override;
 
-  int Verify(X509Certificate* cert,
-             const std::string& stapled_ocsp_response,
-             const std::string& sct_list_from_tls_extension,
-             SignedCertificateTimestampAndStatusList* output_scts,
-             const NetLogWithSource& net_log) override;
+  void Verify(X509Certificate* cert,
+              base::StringPiece stapled_ocsp_response,
+              base::StringPiece sct_list_from_tls_extension,
+              SignedCertificateTimestampAndStatusList* output_scts,
+              const NetLogWithSource& net_log) override;
+
+  void SetObserver(Observer* observer) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DoNothingCTVerifier);