Move the NSS functions out of CertDatabase into a new NSSCertDatabase class.

net/base/ssl_client_auth_cache.cc

 // Copyright (c) 2011 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/base/ssl_client_auth_cache.h"
 
 #include "base/logging.h"
 #include "net/base/x509_certificate.h"
 
 namespace net {
 
 SSLClientAuthCache::SSLClientAuthCache() {
-  CertDatabase::AddObserver(this);
+  CertDatabase::GetInstance()->AddObserver(this);
 }
 
 SSLClientAuthCache::~SSLClientAuthCache() {
-  CertDatabase::RemoveObserver(this);
+  CertDatabase::GetInstance()->RemoveObserver(this);
 }
 
 bool SSLClientAuthCache::Lookup(
     const std::string& server,
     scoped_refptr<X509Certificate>* certificate) {
   DCHECK(certificate);
 
   AuthCacheMap::iterator iter = cache_.find(server);
   if (iter == cache_.end())
     return false;
 
   *certificate = iter->second;
   return true;
 }
 
 void SSLClientAuthCache::Add(const std::string& server,
                              X509Certificate* value) {
   cache_[server] = value;
 
   // TODO(wtc): enforce a maximum number of entries.
 }
 
 void SSLClientAuthCache::Remove(const std::string& server) {
   cache_.erase(server);
 }
 
-void SSLClientAuthCache::OnUserCertAdded(const X509Certificate* cert) {
+void SSLClientAuthCache::OnCertAdded(const X509Certificate* cert) {
   cache_.clear();
 }
 
 }  // namespace net