ChromeOS: should not show "Language changed" notification for certain languages.

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 5440b0d18a49358cdeda45dd99cf43df424037a2..c98add4bb982cbec5d9e01fde88f39db2300e115 100644
--- a/ui/base/l10n/l10n_util.h
+++ b/ui/base/l10n/l10n_util.h
@@ -25,6 +25,9 @@ namespace l10n_util {
 // std::string as an argument.
 UI_BASE_EXPORT std::string GetCanonicalLocale(const std::string& locale);
 
+// Takes normalized locale as |locale|. Returns language part (before '-').
+UI_BASE_EXPORT std::string GetLanguage(const std::string& locale);
+
 // This method translates a generic locale name to one of the locally defined
 // ones. This method returns true if it succeeds.
 UI_BASE_EXPORT bool CheckAndResolveLocale(const std::string& locale,