NamedChangeCallback   26 base/prefs/pref_change_registrar.h   typedef base::Callback<void(const std::string&)> NamedChangeCallback;
NamedChangeCallback   49 base/prefs/pref_member.h   typedef base::Callback<void(const std::string&)> NamedChangeCallback;
NamedChangeCallback   25 chrome/browser/prefs/synced_pref_change_registrar.h   typedef base::Callback<void(const std::string&, bool)> NamedChangeCallback;