Convert a few more HTML files from using DOS line breaks to UNIX.

This makes it possible for the trybots to apply changes here.

TBR=jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25994003

git-svn-id: svn://svn.chromium.org/blink/trunk@158926 bbb929c8-8fbe-4397-9dbb-9b2b20218538