[Uber page] Sub-page overlaps the text of the uber navigation pane

BUG=111880
R=jhawkins@chromium.org
TEST=Sub pages look OK on both wide and narrow monitors.


Review URL: http://codereview.chromium.org/9348005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@120711 0039d316-1c4b-4281-b951-d872f2087c98