Do not 'defocus' user pod when there's only 1 user shown.
Fix bug with tooltips not showing up after user is removed.

BUG=135647,156677

Review URL: https://codereview.chromium.org/11420038

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168255 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed