ObserverMap        73 base/prefs/pref_change_registrar.h   typedef std::map<std::string, NamedChangeCallback> ObserverMap;
ObserverMap        49 chrome/browser/prefs/synced_pref_change_registrar.h   typedef std::map<std::string, NamedChangeCallback> ObserverMap;
ObserverMap        52 components/policy/core/common/policy_service_impl.h   typedef std::map<PolicyDomain, Observers*> ObserverMap;
ObserverMap       288 extensions/browser/event_router.h   typedef base::hash_map<std::string, Observer*> ObserverMap;