Add DDCAPS2_CANRENDERWINDOWED capabilities to our DDraw driver.

diff --git a/dlls/x11drv/x11ddraw.c b/dlls/x11drv/x11ddraw.c
index 12362ee..a6b0979 100644
--- a/dlls/x11drv/x11ddraw.c
+++ b/dlls/x11drv/x11ddraw.c
@@ -263,7 +263,7 @@
   {	/* ddCaps (only stuff the HAL implements here) */
    sizeof(DDCORECAPS),							/* dwSize */
    DDCAPS_GDI | DDCAPS_PALETTE,						/* dwCaps */
-   DDCAPS2_CERTIFIED | DDCAPS2_NONLOCALVIDMEM | DDCAPS2_NOPAGELOCKREQUIRED |
+   DDCAPS2_CERTIFIED | DDCAPS2_NONLOCALVIDMEM | DDCAPS2_NOPAGELOCKREQUIRED | DDCAPS2_CANRENDERWINDOWED |
    DDCAPS2_WIDESURFACES | DDCAPS2_PRIMARYGAMMA | DDCAPS2_FLIPNOVSYNC,   /* dwCaps2 */
    0,									/* dwCKeyCaps */
    0,									/* dwFXCaps */