Delete empty folders in system level install. Also cleanup uninstall error messages a little bit.
Delete empty folders in system level install. Also cleanup uninstall error messages a little bit.

BUG=11553
TEST=Uninstall system level chrome and select "delete profile data", %LOCALAPPDATA%\Chromium folder should get deleted.

Review URL: http://codereview.chromium.org/115945


git-svn-id: http://src.chromium.org/svn/trunk/src@17265 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5bfdcf225a132d4a3183f0002611679d6e0cdee2
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