DOMUI Prefs: Add a visual indication of the lead element
DOMUI Prefs: Add a visual indication of the lead element

BUG=None
TEST=Change the lead selection in DOMUI pref lists; there should be a top and bottom border.

Review URL: http://codereview.chromium.org/6198005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@71102 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser