Display the error code when certificates fail to add

chrome/browser/ssl/ssl_add_cert_handler.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/ssl/ssl_add_cert_handler.h"
 
 #include "app/l10n_util.h"
+#include "base/string_util.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/platform_util.h"
 #include "grit/generated_resources.h"
 #include "net/base/cert_database.h"
 #include "net/base/net_errors.h"
 #include "net/base/x509_certificate.h"
 #include "net/url_request/url_request.h"
 
 SSLAddCertHandler::SSLAddCertHandler(URLRequest* request,
                                      net::X509Certificate* cert)
     : cert_(cert) {
   // Stay alive until the UI completes and Finished() is called.
   AddRef();
   ChromeThread::PostTask(
       ChromeThread::UI, FROM_HERE,
       NewRunnableMethod(this, &SSLAddCertHandler::RunUI));
 }
 
 void SSLAddCertHandler::RunUI() {
   int cert_error;
   {
     net::CertDatabase db;
     cert_error = db.CheckUserCert(cert_);
   }
   if (cert_error != net::OK) {
     // TODO(snej): Map cert_error to a more specific error message.
-    ShowError(l10n_util::GetStringUTF16(IDS_ADD_CERT_ERR_INVALID_CERT));
+    ShowError(l10n_util::GetStringFUTF16(
+        IDS_ADD_CERT_ERR_INVALID_CERT,
+        IntToString16(-cert_error),
+        ASCIIToUTF16(net::ErrorToString(cert_error))));
     Finished(false);
     return;
   }
   AskToAddCert();
 }
 
 #if !defined(OS_MACOSX)
 void SSLAddCertHandler::AskToAddCert() {
   // TODO(snej): Someone should add Windows and GTK implementations with UI.
   Finished(true);
 }
 #endif
 
 void SSLAddCertHandler::Finished(bool add_cert) {
   if (add_cert) {
     net::CertDatabase db;
     int cert_error = db.AddUserCert(cert_);
     if (cert_error != net::OK) {
       // TODO(snej): Map cert_error to a more specific error message.
-      ShowError(l10n_util::GetStringUTF16(IDS_ADD_CERT_ERR_FAILED));
+      ShowError(l10n_util::GetStringFUTF16(
+          IDS_ADD_CERT_ERR_FAILED,
+          IntToString16(-cert_error),
+          ASCIIToUTF16(net::ErrorToString(cert_error))));
     }
   }
   Release();
 }
 
 void SSLAddCertHandler::ShowError(const string16& error) {
   Browser* browser = BrowserList::GetLastActive();
   platform_util::SimpleErrorBox(
       browser ? browser->window()->GetNativeHandle() : NULL,
       l10n_util::GetStringUTF16(IDS_ADD_CERT_FAILURE_TITLE),
       error);
 }