If we receive a redirect response, we should copy the http referer field from the old request.
If we receive a redirect response, we should copy the http referer field from the old request.

BUG=7357
TEST=none

Review URL: http://codereview.chromium.org/470010

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@35379 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