Improve error pages on client certificate failures.

components/error_page/common/localized_error.cc

Index: components/error_page/common/localized_error.cc
diff --git a/components/error_page/common/localized_error.cc b/components/error_page/common/localized_error.cc
index 1f6fffe697036b7980482d36903a7bcf79e7e76a..2973a2281e9e730a70dba9e38a9f7cdea68bb01c 100644
--- a/components/error_page/common/localized_error.cc
+++ b/components/error_page/common/localized_error.cc
@@ -65,6 +65,7 @@ enum NAV_SUGGESTIONS {
   SUGGEST_COMPLETE_SETUP                    = 1 << 11,
   // Reload page suggestion for pages created by a post.
   SUGGEST_REPOST_RELOAD                     = 1 << 12,
+  SUGGEST_CLIENT_CERTIFICATE                = 1 << 13,
 };
 
 enum SHOW_BUTTONS {
@@ -242,8 +243,8 @@ const LocalizedErrorMap net_error_options[] = {
   {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
    IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
    IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
-   SUGGEST_CONTACT_ADMINISTRATOR,
-   SHOW_NO_BUTTONS,
+   SUGGEST_CONTACT_ADMINISTRATOR | SUGGEST_CLIENT_CERTIFICATE,
+   SHOW_BUTTON_RELOAD,
   },
   {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
    IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
@@ -645,6 +646,12 @@ void GetSuggestionsSummaryList(int error_code,
         IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_SUMMARY, false);
   }
 
+  if (suggestions & SUGGEST_CLIENT_CERTIFICATE) {
+    AddSingleEntryDictionaryToList(suggestions_summary_list, "summary",
+                                   IDS_ERRORPAGES_SUGGESTION_CLIENT_CERTIFICATE,
+                                   false);
+  }
+
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
   if (IsSuggested(suggestions, SUGGEST_DNS_CONFIG) &&
       IsSuggested(suggestions, SUGGEST_FIREWALL_CONFIG) &&