Translate: Filter and record languages whose names Chrome doesn't show

ui/base/l10n/l10n_util.h

Index: ui/base/l10n/l10n_util.h
diff --git a/ui/base/l10n/l10n_util.h b/ui/base/l10n/l10n_util.h
index 21ca83a3b18083ab9973cd38c538317b55d160ef..dda9890c534453c6b250285083ee6433b81a041c 100644
--- a/ui/base/l10n/l10n_util.h
+++ b/ui/base/l10n/l10n_util.h
@@ -32,6 +32,11 @@ namespace l10n_util {
 // we fall back to en-us.
 UI_EXPORT std::string GetApplicationLocale(const std::string& pref_locale);
 
+// Returns true if a display name for |locale| is available in the locale
+// |display_locale|.
+UI_EXPORT bool IsLocaleNameTranslated(const char* locale,
+                                      const std::string& display_locale);
+
 // Given a locale code, return true if the OS is capable of supporting it.
 // For instance, Oriya is not well supported on Windows XP and we return
 // false for "or".