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### Preflight Checklist
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* [x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x] I have searched the issue tracker for an issue that matches the one I want to file, without success.

### Issue Details

* **Electron Version:**
  * 10.1.3
* **Operating System:**
  * win7 sp1 x64

- without worldSafeExecuteJavaScript, `(webFrame|webContents).executeJavaScript('new Promise(resolve => setTimeout(() => resolve(2), 3000));')` works as expected; the executeJavaScript promise waits for the eval promise.
- in the case of webFrame the evaled promise is returned raw
- in the case of webContents the promise is marshaled
- with worldSafeExecuteJavaScript, both error with: "An object could not be cloned"
- webContents should continue marshaling promises, otherwise its an unnecessary breaking change
- webFrame should marshal promises for consistency with webContents
- the clone restriction would be on the promise resolve value

### To Reproduce
`(webFrame|webContents).executeJavaScript('new Promise(resolve => setTimeout(() => resolve(2), 3000));')`


shell/renderer/api/electron_api_web_frame.cc
v8::Local<v8::Value> window,
                                      std::string pref_name) {
  content::RenderFrame* render_frame = GetRenderFrame(window);
  const auto& prefs = render_frame->GetBlinkPreferences();
  if (pref_name == options::kPreloadScripts) {
    return gin::ConvertToV8(isolate, prefs.preloads);
  } else if (pref_name == options::kDisableElectronSiteInstanceOverrides) {
    return gin::ConvertToV8(isolate,
                            prefs.disable_electron_site_instance_overrides);
  } else if (pref_name == options::kBackgroundColor) {
    return gin::ConvertToV8(isolate, prefs.background_color);
  } else if (pref_name == options::kOpenerID) {
    
    return gin::ConvertToV8(isolate, prefs.opener_id);
  } else if (pref_name == options::kContextIsolation) {
    return gin::ConvertToV8(isolate, prefs.context_isolation);
#if BUILDFLAG(ENABLE_REMOTE_MODULE)
  } else if (pref_name == options::kEnableRemoteModule) {
    return gin::ConvertToV8(isolate, prefs.enable_remote_module);
#endif
  } else if (pref_name == options::kWorldSafeExecuteJavaScript) {
    return gin::ConvertToV8(isolate, prefs.world_safe_execute_javascript);
  } else if (pref_name == options::kGuestInstanceID) {
    
    return gin::ConvertToV8(isolate, prefs.guest_instance_id);
  } else if (pref_name == options::kHiddenPage) {