Reland add --use-more-webui runtime flag to toggle WebUI replacements for native dialogs.

chrome/browser/certificate_viewer.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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_CERTIFICATE_VIEWER_H_
 #define CHROME_BROWSER_CERTIFICATE_VIEWER_H_
 #pragma once
 
 #include "ui/gfx/native_widget_types.h"
 
 namespace net {
 
 class X509Certificate;
 
 }  // namespace net
 
 // Opens a certificate viewer under |parent| to display the certificate from
 // the |CertStore| with id |cert_id|.
 void ShowCertificateViewerByID(gfx::NativeWindow parent, int cert_id);
 
 // Opens a certificate viewer under |parent| to display |cert|.
 void ShowCertificateViewer(gfx::NativeWindow parent,
                            net::X509Certificate* cert);
 
+// Opens a certificate viewer under |parent| to display |cert| using a native
+// certificate viewer dialog.
+void ShowNativeCertificateViewer(gfx::NativeWindow parent,
+                                 net::X509Certificate* cert);
+
 #endif  // CHROME_BROWSER_CERTIFICATE_VIEWER_H_