This CL changes the lifespan of SSLConnectJobMessengers so that they are created only when needed,

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 356 matching lines @@
       handshake_succeeded_(false),
       marked_session_as_good_(false),
       transport_security_state_(context.transport_security_state),
       net_log_(transport_->socket()->NetLog()) {
 }
 
 SSLClientSocketOpenSSL::~SSLClientSocketOpenSSL() {
   Disconnect();
 }
 
+// Compute a unique string for the SSL session cache.

[wtc, 2014/08/14 00:46:45]

Nit: delete this comment -- just rely on the comment in ssl_client_socket.h (the
base class) for this method.

[mshelley, 2014/08/14 20:01:36]

Done.

+std::string SSLClientSocketOpenSSL::GetSessionCacheKey() const {
+  std::string result = host_and_port_.ToString();
+  result.append("/");
+  result.append(ssl_session_cache_shard_);
+  return result;
+}
+
 bool SSLClientSocketOpenSSL::InSessionCache() const {
   SSLContext* context = SSLContext::GetInstance();
   std::string cache_key = GetSessionCacheKey();
   return context->session_cache()->SSLSessionIsInCache(cache_key);
 }
 
 void SSLClientSocketOpenSSL::SetHandshakeCompletionCallback(
     const base::Closure& callback) {
   handshake_completion_callback_ = callback;
 }
@@ skipping 451 matching lines @@
   user_write_buf_ = NULL;
   user_write_buf_len_ = 0;
   if (rv < 0) {
     // Failure of a write attempt may indicate a failed false start
     // connection.
     OnHandshakeCompletion();
   }
   base::ResetAndReturn(&user_write_callback_).Run(rv);
 }
 
-std::string SSLClientSocketOpenSSL::GetSessionCacheKey() const {
-  return CreateSessionCacheKey(host_and_port_, ssl_session_cache_shard_);
-}
-
 void SSLClientSocketOpenSSL::OnHandshakeCompletion() {
   if (!handshake_completion_callback_.is_null())
     base::ResetAndReturn(&handshake_completion_callback_).Run();
 }
 
 bool SSLClientSocketOpenSSL::DoTransportIO() {
   bool network_moved = false;
   int rv;
   // Read and write as much data as possible. The loop is necessary because
   // Write() may return synchronously.
@@ skipping 773 matching lines @@
   if (handshake_succeeded_ && marked_session_as_good_)
     OnHandshakeCompletion();
 }
 
 scoped_refptr<X509Certificate>
 SSLClientSocketOpenSSL::GetUnverifiedServerCertificateChain() const {
   return server_cert_;
 }
 
 }  // namespace net