virtual bool AddOutgoingMessage(const std::string& persistent_id,
const MCSMessage& message,
const UpdateCallback& callback) OVERRIDE;
+ virtual void OverwriteOutgoingMessage(const std::string& persistent_id,
+ const MCSMessage& message,
+ const UpdateCallback& callback)
+ OVERRIDE;
virtual void RemoveOutgoingMessage(const std::string& persistent_id,
const UpdateCallback& callback) OVERRIDE;
virtual void RemoveOutgoingMessages(const PersistentIdList& persistent_ids,