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

net/socket/ssl_client_socket_openssl.h

 // 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.
 
 #ifndef NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 39 matching lines @@
                          const SSLConfig& ssl_config,
                          const SSLClientSocketContext& context);
   virtual ~SSLClientSocketOpenSSL();
 
   const HostPortPair& host_and_port() const { return host_and_port_; }
   const std::string& ssl_session_cache_shard() const {
     return ssl_session_cache_shard_;
   }
 
   // SSLClientSocket implementation.
+  virtual std::string GetSessionCacheKey() const OVERRIDE;
   virtual bool InSessionCache() const OVERRIDE;
   virtual void SetHandshakeCompletionCallback(
       const base::Closure& callback) OVERRIDE;
   virtual void GetSSLCertRequestInfo(
       SSLCertRequestInfo* cert_request_info) OVERRIDE;
   virtual NextProtoStatus GetNextProto(std::string* proto) OVERRIDE;
   virtual ChannelIDService* GetChannelIDService() const OVERRIDE;
 
   // SSLSocket implementation.
   virtual int ExportKeyingMaterial(const base::StringPiece& label,
@@ skipping 33 matching lines @@
  private:
   class PeerCertificateChain;
   class SSLContext;
   friend class SSLClientSocket;
   friend class SSLContext;
 
   int Init();
   void DoReadCallback(int result);
   void DoWriteCallback(int result);
 
-  // Compute a unique key string for the SSL session cache.
-  std::string GetSessionCacheKey() const;
   void OnHandshakeCompletion();
 
   bool DoTransportIO();
   int DoHandshake();
   int DoChannelIDLookup();
   int DoChannelIDLookupComplete(int result);
   int DoVerifyCert(int result);
   int DoVerifyCertComplete(int result);
   void DoConnectCallback(int result);
   X509Certificate* UpdateServerCert();
@@ skipping 163 matching lines @@
   // TransportSecurityState::CheckPublicKeyPins in the event of a
   // pinning failure. It is a (somewhat) human-readable string.
   std::string pinning_failure_log_;
 
   BoundNetLog net_log_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_