Reuse UseReferenceBuild() cleanup in startup test.
Reuse UseReferenceBuild() cleanup in startup test.

BUG=none
TEST=startup test continues running

Review URL: http://codereview.chromium.org/507059

git-svn-id: http://src.chromium.org/svn/trunk/src@35082 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 6a5794a36d2dc65a805c08ef73f5ab8bc5aaec52
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