Cancel client auth requests when not promptable.

chrome/browser/ssl/ssl_client_certificate_selector.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 CHROME_BROWSER_SSL_SSL_CLIENT_CERTIFICATE_SELECTOR_H_
 #define CHROME_BROWSER_SSL_SSL_CLIENT_CERTIFICATE_SELECTOR_H_
 
 #include "base/callback_forward.h"
+#include "base/memory/scoped_ptr.h"
 
 namespace content {
+class ClientCertificateDelegate;
 class WebContents;
 }
 
 namespace net {
 class SSLCertRequestInfo;
 class X509Certificate;
 }
 
 namespace chrome {
 
-typedef base::Callback<void(net::X509Certificate*)> SelectCertificateCallback;
-
 // Opens a constrained SSL client certificate selection dialog under |parent|,
 // offering certificates from |cert_request_info|. When the user has made a
-// selection, the dialog will report back to |callback|. |callback| is notified
-// when the dialog closes in call cases; if the user cancels the dialog, we call
-// with a NULL certificate.
+// selection, the dialog will report back to |delegate|. If the dialog is
+// closed with no selection, |delegate| will simply be destroyed.
 void ShowSSLClientCertificateSelector(
     content::WebContents* contents,
     net::SSLCertRequestInfo* cert_request_info,
-    const SelectCertificateCallback& callback);
+    scoped_ptr<content::ClientCertificateDelegate> delegate);
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_SSL_SSL_CLIENT_CERTIFICATE_SELECTOR_H_