Aborts the progress of the specified asynchronous download, started either with ReceiveHTTPFile() or ReceiveHTTPMemory(). It's also usable for HTTPRequest() and HTTPRequestMemory() (if #PB_HTTP_Asynchronous was used).
HttpConnection The HTTP connection to abort.
The value #PB_HTTP_Aborted will be returned by HTTPProgress(). FinishHTTP() has to be called once the download has been aborted.