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diff --git a/net/base/x509_openssl_util.h b/net/base/x509_openssl_util.h
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+++ b/net/base/x509_openssl_util.h
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+// Copyright (c) 2006-2008 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_BASE_X509_OPENSSL_UTIL_H_
+#define NET_BASE_X509_OPENSSL_UTIL_H_
+#pragma once
+
+#include <openssl/asn1.h>
+#include <openssl/x509v3.h>
+
+#include <string>
+
+namespace base {
+class Time;
+}  // namespace base
+
+namespace net {
+
+// A collection of helper functions to fetch data from OpenSSL X509 certificates
+// into more convenient std / base datatypes.
+namespace x509_openssl_util {
+
+bool ParsePrincipalKeyAndValueByIndex(X509_NAME* name,
+                                      int index,
+                                      std::string* key,
+                                      std::string* value);
+
+bool ParsePrincipalValueByIndex(X509_NAME* name, int index, std::string* value);
+
+bool ParsePrincipalValueByNID(X509_NAME* name, int nid, std::string* value);
+
+bool ParseDate(ASN1_TIME* x509_time, base::Time* time);
+
+} // namespace x509_openssl_util
+
+} // namespace net
+
+#endif  // NET_BASE_X509_OPENSSL_UTIL_H_