Add a CRYPTO_BUFFER_POOL to SSLClientSocketImpl.

net/cert/x509_util_openssl.h

 // Copyright (c) 2011 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_X509_UTIL_OPENSSL_H_
 #define NET_CERT_X509_UTIL_OPENSSL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 33 matching lines @@
 
 // DER-encodes |x509|, caching the encoding in a structure owned by
 // the X509. On success, returns true, and sets |*out_der| to point to
 // the encoding. The StringPiece is valid as long as |x509| is not
 // freed.
 //
 // Note: this caches the encoding, so |x509| must not be modified
 // after the first call to this function.
 bool NET_EXPORT GetDER(X509* x509, base::StringPiece* out_der);
 
+// Returns a CRYPTO_BUFFER_POOL for deduplicating certificates.
+CRYPTO_BUFFER_POOL* GetBufferPool();
+
 } // namespace x509_util
 
 } // namespace net
 
 #endif  // NET_CERT_X509_UTIL_OPENSSL_H_