Add utility function to determine if a locale is valid syntax; this will...

chrome/common/extensions/extension_l10n_util.h

Index: chrome/common/extensions/extension_l10n_util.h
===================================================================
--- chrome/common/extensions/extension_l10n_util.h	(revision 68996)
+++ chrome/common/extensions/extension_l10n_util.h	(working copy)
@@ -59,18 +59,9 @@
                std::set<std::string>* valid_locales,
                std::string* error);
 
-// Converts all - into _, to be consistent with ICU and file system names.
-std::string NormalizeLocale(const std::string& locale);
-
 // Returns normalized current locale, or default locale - en_US.
 std::string CurrentLocaleOrDefault();
 
-// Produce a vector of parent locales for given locale.
-// It includes the current locale in the result.
-// sr_Cyrl_RS generates sr_Cyrl_RS, sr_Cyrl and sr.
-void GetParentLocales(const std::string& current_locale,
-                      std::vector<std::string>* parent_locales);
-
 // Extends list of Chrome locales to them and their parents, so we can do
 // proper fallback.
 void GetAllLocales(std::set<std::string>* all_locales);