Fix for HttpTransactionDelegate parameter removal from CreateTransaction().

In a previous CL https://codereview.chromium.org/121453002/
CreateTrasaction() method removed one of the parameters HttpTransactionDelegate.
One of the calls were not updated to reflect this change.

NOTRY=true
R=rvargas@chromium.org, tedchoc@chromium.org

Review URL: https://codereview.chromium.org/121963002

Patch from Ramya <cramya@chromium.org>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242652 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242652