richedit: (4/4) Do not read actual scrollbar state for scrollbar update, use internal state instead

Alex Villací­s Lasso a_villacis at
Mon Jul 21 12:58:24 CDT 2008

As shown by previous patches, reliance on the actual scroll state causes 
problems with misbehaving applications that force visibility of scroll 
bars on the richedit control. So rely on an cached state instead of 
reading the actual scrollbar state. Fixes a bunch of todo_wine's 
introduced by previous test patches.

* Fix richedit to not depend on actual scrollbar state, but rather use 
an internal copy
* Remove todo_wine's introduced by previous patches that now succeed.

perl -e '$x=2.4;print sprintf("%.0f + %.0f = %.0f\n",$x,$x,$x+$x);'

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