Allow country-specific languages in UI list at OOBE.

chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc

Index: chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc b/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
index fec16e0b2c8758335b75adcad7b839dc020f6a4c..93607283d5cb7d81b8923286ba74d37dce409d5c 100644
--- a/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.cc
@@ -233,7 +233,52 @@ base::ListValue* CrosLanguageOptionsHandler::GetLanguageListInternal(
       configured_locales.size());
 
   size_t configured_locales_count = 0;
+
   // Build the list of display names, and build the language map.
+
+  // The list of configured locales might have entries not in
+  // base_language_codes. If there are unsipported language variants,
+  // replace them with base language from base_language_codes if supported.
+  for (std::map<std::string, int>::const_iterator iter = language_index.begin();
+       iter != language_index.end();
+       ++iter) {
+    const std::string& language_id = iter->first;
+    const int language_idx = iter->second;
+
+    const size_t dash_pos = language_id.find_first_of('-');
+
+    // Ignore non-specific codes.
+    if (dash_pos == std::string::npos || dash_pos == 0)
+      continue;
+
+    if (std::find(base_language_codes.begin(),
+                  base_language_codes.end(),
+                  language_id) != base_language_codes.end()) {
+      // Language is supported. No need to replace
+      continue;
+    }
+    const std::string base_language_code = language_id.substr(0, dash_pos);
+    if (std::find(base_language_codes.begin(),
+                  base_language_codes.end(),
+                  base_language_code) == base_language_codes.end()) {
+      // Base language is not supported.
+      continue;
+    }
+
+    const base::string16 display_name =
+        l10n_util::GetDisplayNameForLocale(language_id, app_locale, true);
+    const base::string16 native_display_name =
+        l10n_util::GetDisplayNameForLocale(
+            language_id, base_language_code, true);

[jungshik at Google, 2014/04/04 08:27:08]

You can just use |language_id| instead of |base_language_code| as the 2nd param.
GetDisplayNameForLocale will do the necessary fallback. In most cases, it'd not
matter, but in some cases, there might be a difference. 

[Alexander Alekseev, 2014/04/05 01:18:32]

Done.

+
+    language_map[display_name] =
+        std::make_pair(language_id, native_display_name);
+
+    configured_locales_display_names[language_idx] = display_name;
+    ++configured_locales_count;
+  }
+
+  // Translate language codes, generated from input methods.
   for (std::set<std::string>::const_iterator iter = language_codes.begin();
        iter != language_codes.end(); ++iter) {
      // Exclude the language which is not in |base_langauge_codes| even it has
@@ -255,8 +300,12 @@ base::ListValue* CrosLanguageOptionsHandler::GetLanguageListInternal(
     const std::map<std::string, int>::const_iterator index_pos =
         language_index.find(*iter);
     if (index_pos != language_index.end()) {
-      configured_locales_display_names[index_pos->second] = display_name;
-      ++configured_locales_count;
+      base::string16& stored_display_name =
+          configured_locales_display_names[index_pos->second];
+      if (stored_display_name.empty()) {
+        stored_display_name = display_name;
+        ++configured_locales_count;
+      }
     } else {
       display_names.push_back(display_name);
     }