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

chrome/browser/certificate_viewer.h

Index: chrome/browser/certificate_viewer.h
diff --git a/chrome/browser/certificate_viewer.h b/chrome/browser/certificate_viewer.h
index 89b0e04bbcd91da0c819da5e2d36770d3abff7e6..2dc9bbc46278818233d94c08d196115529790525 100644
--- a/chrome/browser/certificate_viewer.h
+++ b/chrome/browser/certificate_viewer.h
@@ -1,4 +1,4 @@
-// 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.
 
@@ -22,4 +22,9 @@ void ShowCertificateViewerByID(gfx::NativeWindow parent, int cert_id);
 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_