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diff --git a/chrome/browser/cert_store.h b/chrome/browser/cert_store.h
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+++ b/chrome/browser/cert_store.h
@@ -0,0 +1,82 @@
+// Copyright (c) 2010 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 CHROME_BROWSER_CERT_STORE_H_
+#define CHROME_BROWSER_CERT_STORE_H_
+
+#include <map>
+
+#include "base/lock.h"
+#include "base/singleton.h"
+#include "chrome/common/notification_registrar.h"
+#include "net/base/x509_certificate.h"
+
+// The purpose of the cert store is to provide an easy way to store/retrieve
+// X509Certificate objects.  When stored, an X509Certificate object is
+// associated with a RenderProcessHost.  If all the RenderProcessHosts
+// associated with the cert have exited, the cert is removed from the store.
+// This class is used by the SSLManager to keep track of the certs associated
+// to loaded resources.
+// It can be accessed from the UI and IO threads (it is thread-safe).
+// Note that the cert ids will overflow if we register more than 2^32 - 1 certs
+// in 1 browsing session (which is highly unlikely to happen).
+
+class CertStore : public NotificationObserver {
+ public:
+  // Returns the singleton instance of the CertStore.
+  static CertStore* GetSharedInstance();
+
+  // Stores the specified cert and returns the id associated with it.  The cert
+  // is associated to the specified RenderProcessHost.
+  // When all the RenderProcessHosts associated with a cert have exited, the
+  // cert is removed from the store.
+  // Note: ids starts at 1.
+  int StoreCert(net::X509Certificate* cert, int render_process_host_id);
+
+  // Tries to retrieve the previously stored cert associated with the specified
+  // |cert_id|.  Returns whether the cert could be found, and, if |cert| is
+  // non-NULL, copies it in.
+  bool RetrieveCert(int cert_id, scoped_refptr<net::X509Certificate>* cert);
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+ private:
+  friend struct DefaultSingletonTraits<CertStore>;
+
+  CertStore();
+  ~CertStore();
+
+  // 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;
+
+  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_.
+  Lock cert_lock_;
+
+  DISALLOW_COPY_AND_ASSIGN(CertStore);
+};
+
+#endif  // CHROME_BROWSER_CERT_STORE_H_