[XHR] Event firing order. XMLHttpRequestUpload then XMLHttpRequest or reverse

Change on 2010/09/13
http://dev.w3.org/cvsweb/2006/webapi/XMLHttpRequest-2/Overview.src.html.diff?r1=1.138;r2=1.139;f=h
reversed the order of event firing for "request error" algorithm and send()
method to XHRUpload-then-XHR.

send() (only loadstart event) and abort() method are still specified to
fire events in XHR-then-XHRUpload order. Is this intentional or we should
make them consistent?