* 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
Emit("will-destroy");
  ResetManagedWebContents(async);
}
bool WebContents::DidAddMessageToConsole(
    content::WebContents* source,
    blink::mojom::ConsoleMessageLevel level,
    const base::string16& message,
    int32_t line_no,
    const base::string16& source_id) {
  return Emit("console-message", static_cast<int32_t>(level), message, line_no,
              source_id);
}
void WebContents::OnCreateWindow(