Pull implementation of CertStore out to be reused.

content/browser/cert_store_impl.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 CONTENT_BROWSER_CERT_STORE_IMPL_H_
 #define CONTENT_BROWSER_CERT_STORE_IMPL_H_
 
-#include <map>
-
 #include "base/memory/singleton.h"
-#include "base/synchronization/lock.h"
+#include "content/browser/renderer_data_memoizing_store.h"
 #include "content/public/browser/cert_store.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 #include "net/cert/x509_certificate.h"
 
 namespace content {
 
-class CertStoreImpl : public CertStore,
-                      public NotificationObserver {
+class CertStoreImpl : public CertStore {
  public:
   // Returns the singleton instance of the CertStore.
   static CertStoreImpl* GetInstance();
 
   // CertStore implementation:
   virtual int StoreCert(net::X509Certificate* cert,
                         int render_process_host_id) OVERRIDE;
   virtual bool RetrieveCert(int cert_id,
                             scoped_refptr<net::X509Certificate>* cert) OVERRIDE;
 
-  // NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details) OVERRIDE;
  protected:
   CertStoreImpl();
   virtual ~CertStoreImpl();
 
  private:
   friend struct DefaultSingletonTraits<CertStoreImpl>;
 
-  void RegisterForNotification();
-
-  // Remove the specified cert from id_to_cert_ and cert_to_id_.
-  // NOTE: the caller (RemoveCertsForRenderProcesHost) must hold cert_lock_.
-  void RemoveCertInternal(int cert_id);
-
-  // Removes all the certs associated with the specified process from the store.
-  void RemoveCertsForRenderProcesHost(int render_process_host_id);
-
-  typedef std::multimap<int, int> IDMap;
-  typedef std::map<int, scoped_refptr<net::X509Certificate> > CertMap;
-  typedef std::map<net::X509Certificate*, int, net::X509Certificate::LessThan>
-      ReverseCertMap;
-
-  // Is only used on the UI Thread.
-  NotificationRegistrar registrar_;
-
-  IDMap process_id_to_cert_id_;
-  IDMap cert_id_to_process_id_;
-
-  CertMap id_to_cert_;
-  ReverseCertMap cert_to_id_;
-
-  int next_cert_id_;
-
-  // This lock protects: process_to_ids_, id_to_processes_, id_to_cert_ and
-  //                     cert_to_id_.
-  base::Lock cert_lock_;
+  RendererDataMemoizingStore<net::X509Certificate> store_;
 
   DISALLOW_COPY_AND_ASSIGN(CertStoreImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CERT_STORE_IMPL_H_