[PATCH v3 4/6] win32u: Move process_sent_messages implementation from user32.

[Jacek Caban]

Signed-off-by: Jacek Caban 
---
v3: Removed unused functions.

dlls/user32/message.c        |  11 +-
  dlls/user32/user_main.c      |   3 +
  dlls/user32/user_private.h   |   6 +-
  dlls/user32/winproc.c        |   6 +
  dlls/win32u/message.c        | 392 ++++++++++++++++++++++++++++++++++-
  dlls/win32u/ntuser_private.h |   6 +
  dlls/win32u/sysparams.c      |  10 +
  dlls/win32u/win32u_private.h |   2 +
  include/ntuser.h             |  12 ++
  9 files changed, 440 insertions(+), 8 deletions(-)