// ApplicationService::Observer implementation.
void virtual OnApplicationInstalled(const std::string& app_id) OVERRIDE;
void virtual OnApplicationUninstalled(const std::string& app_id) OVERRIDE;
+ void virtual OnApplicationUpdated(const std::string& app_id) OVERRIDE;
void virtual OnApplicationNameChanged(const std::string& app_id,
const std::string& app_name) OVERRIDE;