Declare the default locale by nameless const:
```
#if defined(OS_TIZEN)
const char kDefaultLocale[] = "en-GB";
#else
const char kDefaultLocale[] = "en-US";
#endif
...
ApplicationLocale::ApplicationLocale() : locale_(kDefaultLocale) {
#if defined(OS_TIZEN)
  LoadSystemLocaleFromVconf(this);
  vconf_notify_key_changed(VCONFKEY_LANGSET, OnVconfLangSetChanged, this);
#endif
}
```