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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
return "Chrome/" CHROME_VERSION_STRING;
}
std::string ElectronBrowserClient::GetUserAgent() {
  if (user_agent_override_.empty())
    return GetApplicationUserAgent();
  return user_agent_override_;
}
void ElectronBrowserClient::SetUserAgent(const std::string& user_agent) {
  user_agent_override_ = user_agent;
}
void ElectronBrowserClient::RegisterNonNetworkNavigationURLLoaderFactories(
    int frame_tree_node_id,
    NonNetworkURLLoaderFactoryMap* factories) {
  content::WebContents* web_contents =
      content::WebContents::FromFrameTreeNodeId(frame_tree_node_id);
  content::BrowserContext* context = web_contents->GetBrowserContext();
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  factories->emplace(
      extensions::kExtensionScheme,
      extensions::CreateExtensionNavigationURLLoaderFactory(
          context, false ));
#endif
  auto* protocol_registry = ProtocolRegistry::FromBrowserContext(context);
  protocol_registry->RegisterURLLoaderFactories(
      URLLoaderFactoryType::kNavigation, factories);
}
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
namespace {
class FileURLLoaderFactory : public network::mojom::URLLoaderFactory {