As described in https://github.com/electron/electron/pull/13769, we had to disable mixed sandbox related tests for Windows CI. We should re-enable them back after finding out the root reason.
atom/app/atom_main_delegate.cc
#include "atom/app/atom_main_delegate.h"
#include <iostream>
#include <memory>
#include <string>
#if defined(OS_LINUX)
#include <glib.h>  
#endif
#include "atom/app/atom_content_client.h"
#include "atom/browser/atom_browser_client.h"
#include "atom/browser/atom_gpu_client.h"
#include "atom/browser/feature_list.h"
#include "atom/browser/relauncher.h"
#include "atom/common/options_switches.h"
#include "atom/renderer/atom_renderer_client.h"
#include "atom/renderer/atom_sandboxed_renderer_client.h"