Add "Unsynced" to the bookmark account selector.

Now if you have 1 or more accounts the selector
will show up with the current accounts plus
and entry to show you all the unsynced accounts.

This is a temporary solution until we solve the
question of how to import unsynced bookmarks
into the first account that is added.

Bug: 3022609
Change-Id: I6f19498898e156614b51f802fd3651be3ae36e38
1 file changed