Make app installation work when --user-data-dir is specified.
Make app installation work when --user-data-dir is specified.

BUG=9546
Review URL: http://codereview.chromium.org/58004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@12835 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser