GitLab

Adds the public headers and visibility to the desc command.

Improve formatting of visibility printing.

Don't duplicate group deps in the tree output of "desc"

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/306013007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274324 0039d316-1c4b-4281-b951-d872f2087c98