Demote LOG(WARNING) about unable to handle an auth scheme to LOG(INFO).
Demote LOG(WARNING) about unable to handle an auth scheme to LOG(INFO).

This shows up in the field a number of times due to the Kerberos HTTP authentication protocol not being supported by Chrome, and leads people to believe it's a bigger problem than it actually is.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/3369004

git-svn-id: http://src.chromium.org/svn/trunk/src@58822 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 55f7dc81f3367aad19170d9de5f00a980d125ec3
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