Add ListCerts method to CertDatabase.

net/base/cert_database.h

 // 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 NET_BASE_CERT_DATABASE_H_
 #define NET_BASE_CERT_DATABASE_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 51 matching lines @@
   // Check whether this is a valid user cert that we have the private key for.
   // Returns OK or a network error code such as ERR_CERT_CONTAINS_ERRORS.
   int CheckUserCert(X509Certificate* cert);
 
   // Store user (client) certificate. Assumes CheckUserCert has already passed.
   // Returns OK, or ERR_ADD_USER_CERT_FAILED if there was a problem saving to
   // the platform cert database, or possibly other network error codes.
   int AddUserCert(X509Certificate* cert);
 
 #if defined(USE_NSS)
+  // Get a list of unique certificates in the certificate database.  (One
+  // instance of all certificates.)
+  void ListCerts(CertificateList* certs);
+
   // Import certificates and private keys from PKCS #12 blob.
   // Returns OK or a network error code such as ERR_PKCS12_IMPORT_BAD_PASSWORD
   // or ERR_PKCS12_IMPORT_ERROR.
   int ImportFromPKCS12(const std::string& data, const string16& password);
 
   // Export the given certificates and private keys into a PKCS #12 blob,
   // storing into |output|.
   // Returns the number of certificates successfully exported.
   int ExportToPKCS12(const CertificateList& certs, const string16& password,
                      std::string* output);
@@ skipping 26 matching lines @@
   bool DeleteCertAndKey(const X509Certificate* cert);
 #endif
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CertDatabase);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_CERT_DATABASE_H_