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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
ElectronBrowserClient::CreateURLLoaderThrottles(
    const network::ResourceRequest& request,
    content::BrowserContext* browser_context,
    const base::RepeatingCallback<content::WebContents*()>& wc_getter,
    content::NavigationUIData* navigation_ui_data,
    int frame_tree_node_id) {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  std::vector<std::unique_ptr<blink::URLLoaderThrottle>> result;
#if BUILDFLAG(ENABLE_PLUGINS) && BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  result.push_back(std::make_unique<PluginResponseInterceptorURLLoaderThrottle>(
      request.resource_type, frame_tree_node_id));
#endif
  return result;
}
base::flat_set<std::string>
ElectronBrowserClient::GetPluginMimeTypesWithExternalHandlers(
    content::BrowserContext* browser_context) {
  base::flat_set<std::string> mime_types;
#if BUILDFLAG(ENABLE_PLUGINS) && BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  auto map = PluginUtils::GetMimeTypeToExtensionIdMap(browser_context);
  for (const auto& pair : map)
    mime_types.insert(pair.first);
#endif
  return mime_types;
}
}