Check for the existance of a profile manager. Might not exist during early shutdown.
Check for the existance of a profile manager. Might not exist during early shutdown.

BUG=34652
TEST=Execute chrome. Run chrome --uninstall. Should not crash.

Review URL: http://codereview.chromium.org/572043

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@38269 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