Suggest upgrading to SP3 or later for invalid certificate errors.

chrome/browser/ssl/ssl_blocking_page.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_BLOCKING_PAGE_H_
 #define CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/strings/string16.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
 #include "chrome/browser/history/history_service.h"
 #include "content/public/browser/interstitial_page_delegate.h"
 #include "net/ssl/ssl_info.h"
+#include "ssl_error_info.h"
 #include "url/gurl.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class InterstitialPage;
 class WebContents;
 }
@@ skipping 93 matching lines @@
 
   // For the FieldTrial: this contains the name of the condition.
   std::string trial_condition_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLBlockingPage);
 };
 
 #endif  // CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_