Try to cleanup temporary directories created during install operations.
Try to cleanup temporary directories created during install operations.

BUG=18635

Review URL: http://codereview.chromium.org/174418

git-svn-id: http://src.chromium.org/svn/trunk/src@24369 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 96abc03f829f7913b2919f71790c2c7773dd55f5
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