DevTools: beautify debugger script list.
DevTools: beautify debugger script list.

Review URL: http://codereview.chromium.org/56181

git-svn-id: http://src.chromium.org/svn/trunk/src@13018 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: dfc3d6990eec817d359a1cf4139ffa7e8dc15876
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