Shutdown the notification UI manager before the notifications service, as the former's shutdown logic depends on the latter.
Shutdown the notification UI manager before the notifications service, as the former's shutdown logic depends on the latter.

BUG=50553
TEST=see bug

Review URL: http://codereview.chromium.org/3051029

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@54713 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