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diff --git a/chromium/net/cert/x509_util_ios.h b/chromium/net/cert/x509_util_ios.h
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+++ b/chromium/net/cert/x509_util_ios.h
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+// Copyright (c) 2012 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.
+
+// This file contains functions for iOS to glue NSS and Security.framework
+// together.
+
+#ifndef NET_CERT_X509_UTIL_IOS_H_
+#define NET_CERT_X509_UTIL_IOS_H_
+
+#include <Security/Security.h>
+#include <vector>
+
+#include "net/cert/x509_cert_types.h"
+
+// Forward declaration; real one in <cert.h>
+typedef struct CERTCertificateStr CERTCertificate;
+
+namespace net {
+
+class X509Certificate;
+
+namespace x509_util_ios {
+
+// Converts a Security.framework certificate handle (SecCertificateRef) into
+// an NSS certificate handle (CERTCertificate*).
+CERTCertificate* CreateNSSCertHandleFromOSHandle(SecCertificateRef cert_handle);
+
+// Converts an NSS certificate handle (CERTCertificate*) into a
+// Security.framework handle (SecCertificateRef)
+SecCertificateRef CreateOSCertHandleFromNSSHandle(
+    CERTCertificate* nss_cert_handle);
+
+// Create a new X509Certificate from the specified NSS server cert and
+// intermediates. This is functionally equivalent to
+// X509Certificate::CreateFromHandle(), except it supports receiving
+// NSS CERTCertificate*s rather than iOS SecCertificateRefs.
+X509Certificate* CreateCertFromNSSHandles(
+    CERTCertificate* cert_handle,
+    const std::vector<CERTCertificate*>& intermediates);
+
+SHA1HashValue CalculateFingerprintNSS(CERTCertificate* cert);
+
+// This is a wrapper class around the native NSS certificate handle.
+// The constructor copies the certificate data from |cert_handle| and
+// uses the NSS library to parse it.
+class NSSCertificate {
+ public:
+  explicit NSSCertificate(SecCertificateRef cert_handle);
+  ~NSSCertificate();
+  CERTCertificate* cert_handle() const;
+ private:
+  CERTCertificate* nss_cert_handle_;
+};
+
+// A wrapper class that loads a certificate and all of its intermediates into
+// NSS. This is necessary for libpkix path building to be able to locate
+// needed intermediates.
+class NSSCertChain {
+ public:
+  explicit NSSCertChain(X509Certificate* certificate);
+  ~NSSCertChain();
+  CERTCertificate* cert_handle() const;
+  const std::vector<CERTCertificate*>& cert_chain() const;
+ private:
+  std::vector<CERTCertificate*> certs_;
+};
+
+}  // namespace x509_util_ios
+}  // namespace net
+
+#endif  // NET_CERT_X509_UTIL_IOS_H_