Delete first run dialog on Linux when done.
Delete first run dialog on Linux when done.

BUG=18429

Review URL: http://codereview.chromium.org/182037

git-svn-id: http://src.chromium.org/svn/trunk/src@24966 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 7ded9c28c6df2b3b0312d80677cbab3665d6e4e5
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