Don't show preference related menus in the translate infobar in incognito mode.
Don't show preference related menus in the translate infobar in incognito mode.

BUG=51214
TEST=Navigate in a non incognito window to www.google.de. The translate infobar should show. The options menu should have options to always/never translate german.
     Navigate again to that page but from an incognito window, the options menu in the translate infobar should not have any preference (always/never translate) related items.

Review URL: http://codereview.chromium.org/3073025

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@55777 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