Reland of Update SCT serialization format in Expect-CT reports

net/cert/ct_serialization.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_CERT_CT_SERIALIZATION_H_
 #define NET_CERT_CT_SERIALIZATION_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 67 matching lines @@
 NET_EXPORT_PRIVATE bool DecodeSCTList(base::StringPiece input,
                                       std::vector<base::StringPiece>* output);
 
 // Decodes a single SCT from |input| to |output|.
 // Returns true if all fields in the SCT could be read and decoded, false
 // otherwise.
 NET_EXPORT_PRIVATE bool DecodeSignedCertificateTimestamp(
     base::StringPiece* input,
     scoped_refptr<ct::SignedCertificateTimestamp>* output);
 
+// Serializes a Signed Certificate Timestamp (SCT) into |output|.
+NET_EXPORT void EncodeSignedCertificateTimestamp(
+    const scoped_refptr<ct::SignedCertificateTimestamp>& input,
+    std::string* output);
+
 // Writes an SCTList into |output|, containing a single |sct|.
 NET_EXPORT_PRIVATE bool EncodeSCTListForTesting(const base::StringPiece& sct,
                                                 std::string* output);
 }  // namespace ct
 
 }  // namespace net
 
 #endif  // NET_CERT_CT_SERIALIZATION_H_