vbox: Match struct layout of the MSCOM implementation on Windows

src/vbox/vbox_CAPI_v2_2.h

@@ -1563,6 +1563,16 @@ struct IVirtualBox_vtbl
 {
     struct nsISupports_vtbl nsisupports;
 
+#  ifdef WIN32
+    /* The MSCOM implementation has some additional methods here.
+     * So add them here to get correct binary layout of the object.
+     * In API version 2.2 this affects IVirtualBox and ISession only. */
+    nsresult PR_COM_METHOD (*GetTypeInfoCount)(IVirtualBox *pThis);
+    nsresult PR_COM_METHOD (*GetTypeInfo)(IVirtualBox *pThis);
+    nsresult PR_COM_METHOD (*GetIDsOfNames)(IVirtualBox *pThis);
+    nsresult PR_COM_METHOD (*Invoke)(IVirtualBox *pThis);
+#  endif
+
     nsresult PR_COM_METHOD (*GetVersion)(IVirtualBox *pThis, PRUnichar * *version);
 
     nsresult PR_COM_METHOD (*GetRevision)(IVirtualBox *pThis, PRUint32 *revision);
@@ -4567,6 +4577,16 @@ struct ISession_vtbl
 {
     struct nsISupports_vtbl nsisupports;
 
+#  ifdef WIN32
+    /* The MSCOM implementation has some additional methods here.
+     * So add them here to get correct binary layout of the object.
+     * In API version 2.2 this affects IVirtualBox and ISession only. */
+    nsresult PR_COM_METHOD (*GetTypeInfoCount)(ISession *pThis);
+    nsresult PR_COM_METHOD (*GetTypeInfo)(ISession *pThis);
+    nsresult PR_COM_METHOD (*GetIDsOfNames)(ISession *pThis);
+    nsresult PR_COM_METHOD (*Invoke)(ISession *pThis);
+#  endif
+
     nsresult PR_COM_METHOD (*GetState)(ISession *pThis, PRUint32 *state);
 
     nsresult PR_COM_METHOD (*GetType)(ISession *pThis, PRUint32 *type);

src/vbox/vbox_CAPI_v3_0.h

@@ -716,6 +716,15 @@ struct nsISupports_vtbl {
    */
   nsresult PR_COM_METHOD (*Release)(nsISupports *pThis);
 
+#  ifdef WIN32
+  /* The MSCOM implementation has some additional methods here.
+   * So add them here to get correct binary layout of the object.
+   * In API version 3.x this affects all types. */
+  nsresult PR_COM_METHOD (*GetTypeInfoCount)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetTypeInfo)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetIDsOfNames)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*Invoke)(nsISupports *pThis);
+#  endif
 };
 
 struct nsISupports {

src/vbox/vbox_CAPI_v3_1.h

@@ -716,6 +716,15 @@ struct nsISupports_vtbl {
    */
   nsresult PR_COM_METHOD (*Release)(nsISupports *pThis);
 
+#  ifdef WIN32
+  /* The MSCOM implementation has some additional methods here.
+   * So add them here to get correct binary layout of the object.
+   * In API version 3.x this affects all types. */
+  nsresult PR_COM_METHOD (*GetTypeInfoCount)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetTypeInfo)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetIDsOfNames)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*Invoke)(nsISupports *pThis);
+#  endif
 };
 
 struct nsISupports {

src/vbox/vbox_CAPI_v3_2.h

@@ -712,6 +712,15 @@ struct nsISupports_vtbl {
    */
   nsresult PR_COM_METHOD (*Release)(nsISupports *pThis);
 
+#  ifdef WIN32
+  /* The MSCOM implementation has some additional methods here.
+   * So add them here to get correct binary layout of the object.
+   * In API version 3.x this affects all types. */
+  nsresult PR_COM_METHOD (*GetTypeInfoCount)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetTypeInfo)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*GetIDsOfNames)(nsISupports *pThis);
+  nsresult PR_COM_METHOD (*Invoke)(nsISupports *pThis);
+#  endif
 };
 
 struct nsISupports {