Fix some outdated comments.
Fix some outdated comments.

The URLFetcher::SetFactory method was renamed to URLFetcher::set_factory
at some point. I'm just fixing the comments here.

Review URL: http://codereview.chromium.org/113681

git-svn-id: http://src.chromium.org/svn/trunk/src@16756 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5a0ad84b40e17efe0b2f4409f62f786aadc3eb74
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser