Fix DeleteCache on POSIX.  It wasn't successfully deleting before.
Fix DeleteCache on POSIX.  It wasn't successfully deleting before.


git-svn-id: http://src.chromium.org/svn/trunk/src@2468 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 92832e6ff83b2bd8e292031d6d1e9034e5f41ec3
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