for bug #168411, we changed the nsIBookmarksService interface, but we forgot
change the uuid. for the branch, we are backing out the change to the
interface as we don't want the interface to change on the branch.
sr=bryner
git-svn-id: svn://10.0.0.236/trunk@200696 18797224-902f-48f8-a5cc-f745e15eee43