Return the certificate chain in ClientCertStoreNSS.

net/third_party/nss/ssl/cmpcert.h

Index: net/third_party/nss/ssl/cmpcert.h
diff --git a/net/third_party/nss/ssl/cmpcert.h b/net/third_party/nss/ssl/cmpcert.h
new file mode 100644
index 0000000000000000000000000000000000000000..d6bc2fb30567af964310c389e9f097ef5777e7b9
--- /dev/null
+++ b/net/third_party/nss/ssl/cmpcert.h
@@ -0,0 +1,30 @@
+/*
+ * NSS utility functions
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NET_THIRD_PARTY_NSS_SSL_CMPCERT_H_
+#define NET_THIRD_PARTY_NSS_SSL_CMPCERT_H_
+
+#include <cert.h>
+
+#include <string>
+#include <vector>
+
+#include "net/cert/scoped_nss_types.h"
+
+namespace net {
+
+// Checks if |cert| matches |cert_authorities|. If so, it sets |*intermediates|
+// to a list of intermediates to send and returns true. Otherwise, it returns
+// false.
+bool MatchClientCertificateIssuers(
+    CERTCertificate* cert,
+    const std::vector<std::string>& cert_authorities,
+    std::vector<ScopedCERTCertificate>* intermediates);
+
+}  // namespace net
+
+#endif  // NET_THIRD_PARTY_NSS_SSL_CMPCERT_H_