Add comments to explain the ERR_NAME_NOT_RESOLVED case.
Add comments to explain the ERR_NAME_NOT_RESOLVED case.

TBR=wtc

Review URL: http://codereview.chromium.org/4343

git-svn-id: http://src.chromium.org/svn/trunk/src@2701 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b200a60c633313aa42babc778366846a5c414770
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