//! Called when storage updated a BufferInfo.
/** This emits bufferInfoUpdated() via SignalProxy, iff it's one of our buffers.
* \param user The buffer's owner (not necessarily us)
//! Called when storage updated a BufferInfo.
/** This emits bufferInfoUpdated() via SignalProxy, iff it's one of our buffers.
* \param user The buffer's owner (not necessarily us)