Add a dedicated SSL protocol version metric.

net/socket/ssl_client_socket_openssl.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.
 
 // OpenSSL binding for SSLClientSocket. The class layout and general principle
 // of operation is derived from SSLClientSocketNSS.
 
 #include "net/socket/ssl_client_socket_openssl.h"
 
 #include <errno.h>
@@ skipping 1193 matching lines @@
     base::TimeDelta verify_time =
         base::TimeTicks::Now() - start_cert_verification_time_;
     if (result == OK) {
       UMA_HISTOGRAM_TIMES("Net.SSLCertVerificationTime", verify_time);
     } else {
       UMA_HISTOGRAM_TIMES("Net.SSLCertVerificationTimeError", verify_time);
     }
   }
 
   if (result == OK) {
-    RecordConnectionTypeMetrics(GetNetSSLVersion(ssl_));
-
     if (SSL_session_reused(ssl_)) {
       // Record whether or not the server tried to resume a session for a
       // different version. See https://crbug.com/441456.
       UMA_HISTOGRAM_BOOLEAN(
           "Net.SSLSessionVersionMatch",
           SSL_version(ssl_) == SSL_get_session(ssl_)->ssl_version);
     }
   }
 
   const CertStatus cert_status = server_cert_verify_result_.cert_status;
@@ skipping 800 matching lines @@
                                             ct::SCT_STATUS_LOG_UNKNOWN));
   }
 }
 
 scoped_refptr<X509Certificate>
 SSLClientSocketOpenSSL::GetUnverifiedServerCertificateChain() const {
   return server_cert_;
 }
 
 }  // namespace net