- Enable multiple username support by listening to change events for the username field when there is more than one stored login for the form.
- Make the signon hashtable store a SignonHashEntry, which has a pointer to the first SignonDataEntry. This lets us adjust the head of the linked list without a hashtable operation, and also fixes a case where we would continue using a deleted entry, leading to a crash.
- Change FindPasswordEntryFromSignonData to FnidPasswordEntryInternal, and refactor it a bit.
- Clean up prefill logic so that multiple forms on a page could be prefilled.
- Fix bug where the last input was used as the username field, instead of the input just before the password.
- Make sure we write out all entries for each realm.
- Make sure we include all entries in each realm when returning an enumerator.
- Remove some form manager cruft I missed in passwordManager.js.
git-svn-id: svn://10.0.0.236/trunk@145507 18797224-902f-48f8-a5cc-f745e15eee43
