net::DirectoryLister: mark another buggy use of IO
net::DirectoryLister: mark another buggy use of IO

This code is the same as the previous code in bug 65331, and is also wrong.

BUG=65331

Review URL: http://codereview.chromium.org/5876004

git-svn-id: http://src.chromium.org/svn/trunk/src@69488 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 0aa0752adfd4521e2448744c5d4ce16ebe5cae47
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