ddraw: Get rid of IDirectDrawImpl.
diff --git a/dlls/ddraw/palette.c b/dlls/ddraw/palette.c
index cff59a6..1d66db3 100644
--- a/dlls/ddraw/palette.c
+++ b/dlls/ddraw/palette.c
@@ -269,7 +269,7 @@
 }
 
 HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
-        IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries)
+        struct ddraw *ddraw, DWORD flags, PALETTEENTRY *entries)
 {
     HRESULT hr;