Switch SSLTabHelper to use WebContentsUserData.

chrome/browser/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_CLIENT_CERTIFICATE_SELECTOR_H_
-#define CHROME_BROWSER_SSL_CLIENT_CERTIFICATE_SELECTOR_H_
-
-#include "base/callback_forward.h"
-
-class TabContents;
-
-namespace net {
-class HttpNetworkSession;
-class SSLCertRequestInfo;
-class X509Certificate;
-}
-
-namespace chrome {
-
-// 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.
-void ShowSSLClientCertificateSelector(
-    TabContents* tab_contents,
-    const net::HttpNetworkSession* network_session,
-    net::SSLCertRequestInfo* cert_request_info,
-    const base::Callback<void(net::X509Certificate*)>& callback);
-
-}  // namespace chrome
-
-#endif  // CHROME_BROWSER_SSL_CLIENT_CERTIFICATE_SELECTOR_H_