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### Issue Details

* **Electron Version:**
  * 9.1.1
  * 10.0.0-beta.4
* **Operating System:**
  * Linux x64

### Expected Behavior

Don't crash when `nodeIntegrationInWorker` is `true` and a service worker is being registered. :slightly_smiling_face:

### Actual Behavior

A crash occurs once the service worker is attempted to be registered (blank page, DevTools disconnects).

### To Reproduce

Attempt to register a service worker with `nodeIntegrationInWorker` set to `true`.

```sh
$ git clone https://github.com/lgrahl/electron-node-integration-service-worker-crash
$ npm install
$ npm start
```

Commit https://github.com/lgrahl/electron-node-integration-service-worker-crash/commit/97b14f2c599bfd25ce416b8a7ee91d9122bbfe2c
shell/browser/electron_browser_client.cc
const GURL& url,
    content::WebContents::OnceGetter web_contents_getter,
    int child_id,
    content::NavigationUIData* navigation_data,
    bool is_main_frame,
    ui::PageTransition page_transition,
    bool has_user_gesture,
    const base::Optional<url::Origin>& initiating_origin,
    mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory) {
  base::PostTask(
      FROM_HERE, {BrowserThread::UI},
      base::BindOnce(&HandleExternalProtocolInUI, url,
                     std::move(web_contents_getter), has_user_gesture));
  return true;
}
std::vector<std::unique_ptr<content::NavigationThrottle>>
ElectronBrowserClient::CreateThrottlesForNavigation(
    content::NavigationHandle* handle) {
  std::vector<std::unique_ptr<content::NavigationThrottle>> throttles;
  throttles.push_back(std::make_unique<ElectronNavigationThrottle>(handle));
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  throttles.push_back(
      std::make_unique<extensions::ExtensionNavigationThrottle>(handle));
#endif
  return throttles;
}
content::MediaObserver* ElectronBrowserClient::GetMediaObserver() {