Surface button for loading stale cache copy on net error page.

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 cd2de49ae9bfa1229d27952d61350155b08a88d5..eb7e330fe4b044d0b305bd99234f4792b6e53a76 100644
--- a/chrome/common/localized_error.cc
+++ b/chrome/common/localized_error.cc
@@ -499,7 +499,7 @@ void LocalizedError::GetStrings(int error_code,
                                 const std::string& error_domain,
                                 const GURL& failed_url,
                                 bool is_post,
-                                bool stale_copy_in_cache,
+                                bool stale_load_button,

[mmenke, 2014/04/11 19:42:32]

nit:  Maybe show_stale_load_button?

[Randy Smith (Not in Mondays), 2014/04/14 22:02:13]

Done.

                                 const std::string& locale,
                                 const std::string& accept_languages,
                                 scoped_ptr<ErrorPageParams> params,
@@ -650,7 +650,7 @@ void LocalizedError::GetStrings(int error_code,
       reload_button->SetString("msg",
           l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
       reload_button->SetString("reloadUrl", failed_url.spec());

[mmenke, 2014/04/11 19:42:32]

This string is no longer used.

[Randy Smith (Not in Mondays), 2014/04/14 22:02:13]

Right.  Got rid of the subdirectory and just assigned the message to
reloadButton directly.

(Note: I may revert this as part of handling the potential IOS breakage.  If I
do, I'll do it in a separate PS, so you can review just what I've done to handle
that case separately.)

-      error_strings->Set("reload", reload_button);
+      error_strings->Set("reloadButton", reload_button);
     } else {
       // If the page was created by a post, it can't be reloaded in the same
       // way, so just add a suggestion instead.
@@ -673,7 +673,15 @@ void LocalizedError::GetStrings(int error_code,
   if (!use_default_suggestions)
     return;
 
-  error_strings->SetBoolean("staleCopyInCache", stale_copy_in_cache);
+  if (stale_load_button) {
+    base::DictionaryValue* stale_load_button = new base::DictionaryValue;
+    stale_load_button->SetString(
+        "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE));
+    stale_load_button->SetString(
+        "title",
+        l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE_HELP));
+    error_strings->Set("staleLoadButton", stale_load_button);
+  }
 
 #if defined(OS_CHROMEOS)
   error_strings->SetString(