[PATCH] user32/tests: Add scrollbar subclassing tests.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
 dlls/user32/tests/scroll.c | 74 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)