GitLab

Add comment to explain why some of the strings are typed as string16, and a TODO as a reminder to change this down the road.

BUG=113688
TEST=none

Review URL: https://chromiumcodereview.appspot.com/10181004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133649 0039d316-1c4b-4281-b951-d872f2087c98