Show native language names in the add language overlay.

chrome/browser/chromeos/dom_ui/language_options_handler.h

Index: chrome/browser/chromeos/dom_ui/language_options_handler.h
diff --git a/chrome/browser/chromeos/dom_ui/language_options_handler.h b/chrome/browser/chromeos/dom_ui/language_options_handler.h
index c3e5dcbc46e827991332a5d139e124c946f70ddf..73441fa998b619e15213b85af05c5c89586e0c4f 100644
--- a/chrome/browser/chromeos/dom_ui/language_options_handler.h
+++ b/chrome/browser/chromeos/dom_ui/language_options_handler.h
@@ -29,7 +29,8 @@ class LanguageOptionsHandler : public OptionsPageUIHandler {
   ListValue* GetInputMethodList();
 
   // Gets the list of languages. The return value will look like:
-  // [{'code': 'fr', 'displayName': 'French'}, ...]
+  // [{'code': 'fi', 'displayName': 'Finnish', 'nativeDisplayName': 'suomi'},
+  //  ...]
   ListValue* GetLanguageList();
 
   // Called when the UI language is changed.