Cache certificate verification results in memory.

net/socket/ssl_client_socket_nss.h

Index: net/socket/ssl_client_socket_nss.h
===================================================================
--- net/socket/ssl_client_socket_nss.h	(revision 69359)
+++ net/socket/ssl_client_socket_nss.h	(working copy)
@@ -32,6 +32,7 @@
 class CertVerifier;
 class ClientSocketHandle;
 class DnsCertProvenanceChecker;
+class SingleRequestCertVerifier;
 class SSLHostInfo;
 class X509Certificate;
 
@@ -48,6 +49,7 @@
                      const HostPortPair& host_and_port,
                      const SSLConfig& ssl_config,
                      SSLHostInfo* ssl_host_info,
+                     CertVerifier* cert_verifier,
                      DnsCertProvenanceChecker* dnsrr_resolver);
   ~SSLClientSocketNSS();
 
@@ -193,7 +195,8 @@
   std::vector<scoped_refptr<X509Certificate> > client_certs_;
   bool client_auth_cert_needed_;
 
-  scoped_ptr<CertVerifier> verifier_;
+  CertVerifier* const cert_verifier_;
+  scoped_ptr<SingleRequestCertVerifier> verifier_;
 
   // True if NSS has called HandshakeCallback.
   bool handshake_callback_called_;