and force any Refresh urls back through the original window
context that initiated the helper app download. This solves
the problem where the user clicks on a link to download
content (either to disk or to a helper app) and that document
contains both a redirect for the actual content and a REFRESH
header which is used to point at a page the content provider
wants to see after the download is complete.
sr=rpotts, r=sspizter
git-svn-id: svn://10.0.0.236/trunk@82140 18797224-902f-48f8-a5cc-f745e15eee43
1ac1af786f