GitLab

Adding parameter to GetStatusLabels to indicate if links are acceptable, as some platforms cannot handle links in all the places these messages are shown.

Also adding unit tests for other functionality of GetStatusLabels.

BUG=none, discussed beforehand with akalin
TEST=HtmlNotIncludedInStatusIfNotRequested


Review URL: http://codereview.chromium.org/8383036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110905 0039d316-1c4b-4281-b951-d872f2087c98