We should reset content_length_remaining_ (to -1) when we restart a transaction.  Otherwise, the stale value of content_length_remaining_ may be incorrectly applied to the response to the restarted request.
We should reset content_length_remaining_ (to -1) when we
restart a transaction.  Otherwise, the stale value of
content_length_remaining_ may be incorrectly applied to
the response to the restarted request.

I also reset upload_progress_ just to be safe.

R=darin
BUG=1314424

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@1093 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser