make the helper app dialog always select "Save to disk" if the server sent content-disposition:attachment, not only if we first see this content type r=bzbarsky rs=darin git-svn-id: svn://10.0.0.236/trunk@151988 18797224-902f-48f8-a5cc-f745e15eee43
make the helper app dialog always select "Save to disk" if the server sent content-disposition:attachment, not only if we first see this content type r=bzbarsky rs=darin git-svn-id: svn://10.0.0.236/trunk@151988 18797224-902f-48f8-a5cc-f745e15eee43