extern const char kInitializedSyncedNotificationSendingServices[];
extern const char kSyncedNotificationFirstRun[];
extern const char kWelcomeNotificationDismissed[];
+extern const char kWelcomeNotificationDismissedLocal[];
extern const char kWelcomeNotificationPreviouslyPoppedUp[];
extern const char kWelcomeNotificationExpirationTimestamp[];