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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
#endif
    if (delegate_) {
      auto app_path = static_cast<api::App*>(delegate_)->GetAppPath();
      command_line->AppendSwitchPath(switches::kAppPath, app_path);
    }
    std::unique_ptr<base::Environment> env(base::Environment::Create());
    if (env->HasVar("ELECTRON_PROFILE_INIT_SCRIPTS")) {
      command_line->AppendSwitch("profile-electron-init");
    }
    content::WebContents* web_contents =
        GetWebContentsFromProcessID(process_id);
    if (web_contents) {
      auto* web_preferences = WebContentsPreferences::From(web_contents);
      if (web_preferences)
        web_preferences->AppendCommandLineSwitches(
            command_line, IsRendererSubFrame(process_id));
      auto preloads = SessionPreferences::GetValidPreloads(
          web_contents->GetBrowserContext());
      if (!preloads.empty())
        command_line->AppendSwitchNative(
            switches::kPreloadScripts,
            base::JoinString(preloads, kPathDelimiter));
      if (CanUseCustomSiteInstance()) {
        command_line->AppendSwitch(
            switches::kDisableElectronSiteInstanceOverrides);
      }
    }
  }
}
void ElectronBrowserClient::DidCreatePpapiPlugin(