### Issue Details

* **Electron Version:** 9.0.0 (beta versions of 9.0.0 too)
* **Operating System:** Windows 10 1903
* **Last Known Working Electron version:** 7.2.4

### Repro steps
1. **require** a native module in a Renderer process (on a page)
2. call libuv function **uv_queue_work** 5 times
3. get **uv_after_work_cb** invoked 5 times
4. reload the page 
5. call libuv function **uv_queue_work** 5 times once more

### Expected Behavior
6. get **uv_after_work_cb** invoked 5 times

### Actual Behavior
6. get **uv_after_work_cb** invoked 1 or 2 times, remaining ones never get invoked by libuv

### To Reproduce
I prepared a sample project with minimal code that demonstrates the problem:
>>> https://github.com/jphw/libuv_problems

Please read the README.MD and check src/libuv_problems_module.cpp sources.

### Additional Information
**app.allowRendererProcessReuse = false;**  works as a workaround for this issue

shell/renderer/electron_renderer_client.cc
v8::Local<v8::Context> context) {
  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
          switches::kNodeIntegrationInWorker)) {
    WebWorkerObserver::GetCurrent()->ContextWillDestroy(context);
  }
}
void ElectronRendererClient::SetupMainWorldOverrides(
    v8::Handle<v8::Context> context,
    content::RenderFrame* render_frame) {
  
  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kWebviewTag))
    return;
  
  
  
  auto* isolate = context->GetIsolate();
  std::vector<v8::Local<v8::String>> isolated_bundle_params = {
      node::FIXED_ONE_BYTE_STRING(isolate, "nodeProcess"),
      node::FIXED_ONE_BYTE_STRING(isolate, "isolatedWorld")};
  auto* env = GetEnvironment(render_frame);
  DCHECK(env);
  std::vector<v8::Local<v8::Value>> isolated_bundle_args = {
      env->process_object(),
      GetContext(render_frame->GetWebFrame(), isolate)->Global()};
  util::CompileAndCall(context, "electron/js2c/isolated_bundle",
                       &isolated_bundle_params, &isolated_bundle_args, nullptr);
}
void ElectronRendererClient::SetupExtensionWorldOverrides(