Only show search item when there is a search
Only show search item when there is a search

Don't show search item until we do a search.  Leave the item there unless the user explicitly clears the search.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/1619010

git-svn-id: http://src.chromium.org/svn/trunk/src@44173 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 41b89840d0affe74f28c40d5bd267f4cd589d27f
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser