Index: /trunk/include/VBox/VBoxVideo.h
===================================================================
--- /trunk/include/VBox/VBoxVideo.h	(revision 50771)
+++ /trunk/include/VBox/VBoxVideo.h	(revision 50772)
@@ -1439,5 +1439,5 @@
     VBOXVDMACMD_CHROMIUM_CTL_TYPE_CRHGSMI_SETUP_MAINCB,
     VBOXVDMACMD_CHROMIUM_CTL_TYPE_CRCONNECT,
-    VBOXVDMACMD_CHROMIUM_CTL_TYPE_SIZEHACK = 0xfffffffe
+    VBOXVDMACMD_CHROMIUM_CTL_TYPE_SIZEHACK = 0x7fffffff
 } VBOXVDMACMD_CHROMIUM_CTL_TYPE;
 
@@ -1453,5 +1453,5 @@
 typedef FNCRHGSMICMDCOMPLETION *PFNCRHGSMICMDCOMPLETION;
 
-typedef DECLCALLBACK(bool) FNCROGLHASDATA();
+typedef DECLCALLBACK(bool) FNCROGLHASDATA(void);
 typedef FNCROGLHASDATA *PFNCROGLHASDATA;