Expose OpenSSL's key_exchange_info in the content API

net/ssl/ssl_info.cc

 // 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.
 
 #include "net/ssl/ssl_info.h"
 
 #include "base/pickle.h"
 #include "net/cert/cert_status_flags.h"
 #include "net/cert/signed_certificate_timestamp.h"
 #include "net/cert/x509_certificate.h"
 
 namespace net {
 
 SSLInfo::SSLInfo() {
   Reset();
 }
 
 SSLInfo::SSLInfo(const SSLInfo& info) {
   *this = info;
 }
 
 SSLInfo::~SSLInfo() {
 }
 
 SSLInfo& SSLInfo::operator=(const SSLInfo& info) {
   cert = info.cert;
   unverified_cert = info.unverified_cert;
   cert_status = info.cert_status;
   security_bits = info.security_bits;
+  key_exchange_info = info.key_exchange_info;
   connection_status = info.connection_status;
   is_issued_by_known_root = info.is_issued_by_known_root;
   client_cert_sent = info.client_cert_sent;
   channel_id_sent = info.channel_id_sent;
   handshake_type = info.handshake_type;
   public_key_hashes = info.public_key_hashes;
   signed_certificate_timestamps = info.signed_certificate_timestamps;
   pinning_failure_log = info.pinning_failure_log;
 
   return *this;
 }
 
 void SSLInfo::Reset() {
   cert = NULL;
   unverified_cert = NULL;
   cert_status = 0;
   security_bits = -1;
+  key_exchange_info = 0;
   connection_status = 0;
   is_issued_by_known_root = false;
   client_cert_sent = false;
   channel_id_sent = false;
   handshake_type = HANDSHAKE_UNKNOWN;
   public_key_hashes.clear();
   signed_certificate_timestamps.clear();
   pinning_failure_log.clear();
 }
 
 void SSLInfo::SetCertError(int error) {
   cert_status |= MapNetErrorToCertStatus(error);
 }
 
 }  // namespace net