Change find bar close button to use the standard hover close button
Change find bar close button to use the standard hover close button

Review URL: http://codereview.chromium.org/652086

git-svn-id: http://src.chromium.org/svn/trunk/src@39750 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 05858da776f2894e29ab590dba86fee4735752a2
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