[PATCH 1/5] user32: Introduce user_driver_funcs struct.

[Jacek Caban]

And use it instead of USER_DRIVER.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  dlls/user32/driver.c       | 24 +++++++--------
  dlls/user32/painting.c     |  9 ++----
  dlls/user32/sysparams.c    |  1 -
  dlls/user32/user_private.h | 56 ++--------------------------------
  dlls/user32/win.c          |  6 +---
  dlls/user32/winpos.c       |  9 ++----
  include/wine/gdi_driver.h  | 61 ++++++++++++++++++++++++++++++++++++++
  7 files changed, 78 insertions(+), 88 deletions(-)