Plumb network stack information about existence of cached copy

chrome/common/localized_error.cc

Index: chrome/common/localized_error.cc
diff --git a/chrome/common/localized_error.cc b/chrome/common/localized_error.cc
index d85428cb382c5ef3d37189afc80d2eee442bfbc4..129618d54900b182cc586beb2ac69782900ff0cd 100644
--- a/chrome/common/localized_error.cc
+++ b/chrome/common/localized_error.cc
@@ -494,6 +494,7 @@ void LocalizedError::GetStrings(int error_code,
                                 const std::string& error_domain,
                                 const GURL& failed_url,
                                 bool is_post,
+                                bool stale_copy_in_cache,
                                 const std::string& locale,
                                 const std::string& accept_languages,
                                 base::DictionaryValue* error_strings) {
@@ -558,6 +559,8 @@ void LocalizedError::GetStrings(int error_code,
   error_strings->SetString(
       "less", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LESS));
   error_strings->Set("summary", summary);
+  error_strings->SetBoolean("staleCopyInCache", stale_copy_in_cache);
+
 #if defined(OS_CHROMEOS)
   error_strings->SetString(
       "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));