* Electron Version 6.0.0-beta.12
* Operating System Windows 10 64 bit

Expected Behavior
webContents.print() should send print a job to the specified printer

Actual behavior
Nothing happens. Callback gets called much latter, for example on program exit.

To Reproduce
let print_options = { 
    silent: true,
    printBackground: true,
    deviceName: barcode_device_name 
}
print_window.webContents.print(print_options, (data) => {
    console.log(`print result: ${data}`)
})

Related to #17260
shell/browser/api/atom_api_web_contents.cc
const blink::WebDeviceEmulationParams& params) {
  if (type_ == Type::REMOTE)
    return;
  auto* frame_host = web_contents()->GetMainFrame();
  if (frame_host) {
    auto* widget_host =
        frame_host ? frame_host->GetView()->GetRenderWidgetHost() : nullptr;
    if (!widget_host)
      return;
    widget_host->Send(new WidgetMsg_EnableDeviceEmulation(
        widget_host->GetRoutingID(), params));
  }
}
void WebContents::DisableDeviceEmulation() {
  if (type_ == Type::REMOTE)
    return;
  auto* frame_host = web_contents()->GetMainFrame();
  if (frame_host) {
    auto* widget_host =
        frame_host ? frame_host->GetView()->GetRenderWidgetHost() : nullptr;
    if (!widget_host)
      return;
    widget_host->Send(
        new WidgetMsg_DisableDeviceEmulation(widget_host->GetRoutingID()));
  }
}
void WebContents::ToggleDevTools() {