Unbreak badtoken recovery on mobile

When recovering from a badtoken error, mw.Target called saveDocument(),
but that method only exists in ViewPageTarget. Instead, call .save()
again.

Also pass the HTMLDocument and the save options around to the success
and error handlers, because we need them in order to be able to
call .save().

Bug: 64267
Change-Id: I4743f855dc77f4a9ac427d67d15fb96b7ad770f2
(cherry picked from commit 54d06b2a3d3b99102ec211faaf3be78615f38468)