Refactor client cert private key handling.

net/ssl/client_cert_store.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 NET_SSL_CLIENT_CERT_STORE_H_
 #define NET_SSL_CLIENT_CERT_STORE_H_
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "net/base/net_export.h"
 #include "net/cert/x509_certificate.h"
+#include "net/ssl/client_cert_identity.h"
 
 namespace net {
 
 class SSLCertRequestInfo;
 
 // A handle to a client certificate store to query matching certificates when a
 // server requests client auth. Note that there may be multiple ClientCertStore
 // objects corresponding to the same platform certificate store; each request
 // gets its own uniquely owned handle.
 class NET_EXPORT ClientCertStore {
  public:
   virtual ~ClientCertStore() {}
 
-  using ClientCertListCallback = base::Callback<void(CertificateList)>;
+  using ClientCertListCallback = base::Callback<void(ClientCertIdentityList)>;
 
-  // Get client certs matching the |cert_request_info|. On completion, the
-  // results will be stored in |selected_certs| and the |callback| will be run.
-  // The |callback| may be called sychronously. The caller must ensure the
-  // ClientCertStore and |cert_request_info| remain alive until the callback
-  // has been run.
+  // Get client certs matching the |cert_request_info| and pass them to the
+  // |callback|.  The |callback| may be called sychronously. The caller must
+  // ensure the ClientCertStore and |cert_request_info| remain alive until the
+  // callback has been run.
   virtual void GetClientCerts(const SSLCertRequestInfo& cert_request_info,
                               const ClientCertListCallback& callback) = 0;
 
  protected:
   ClientCertStore() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ClientCertStore);
 };
 
 }  // namespace net
 
 #endif  // NET_SSL_CLIENT_CERT_STORE_H_