inetcomm: Use InternetTransport_ChangeStatus in InternetTransport_DropConnection so that the callback gets called.

dlls/inetcomm/internettransport.c

@@ -171,13 +171,13 @@ HRESULT InternetTransport_DropConnection(InternetTransport *This)
 
     ret = shutdown(This->Socket, SD_BOTH);
 
-    This->Status = IXP_DISCONNECTED;
-
     ret = closesocket(This->Socket);
 
     DestroyWindow(This->hwnd);
     This->hwnd = NULL;
 
+    InternetTransport_ChangeStatus(This, IXP_DISCONNECTED);
+
     return S_OK;
 }