[DevTools] Replace deprecated new-window with webContents.setWindowOpenHandler()

[Willie-Boy]

Summary

The electron package was recently upgraded from ^11.1.0 to ^23.1.2 (#26337). However, the WebContents new-window event – that is used in the react-devtools project – was deprecated in v12.0.0 and removed in v22.2.0. The event was replaced by webContents.setWindowOpenHandler(). This PR replaces the new-window event with webContents.setWindowOpenHandler().

How did you test this change?

I created a simple electron application with similar functionality:

const { app, BrowserWindow, shell } = require('electron')

const createWindow = () => {
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600
  })

  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
    shell.openExternal(url)
    return { action: 'deny' }
  })

  mainWindow.loadFile('index.html')
}

app.whenReady().then(() => {
  createWindow()
})

[Willie-Boy]

@mondaychen, I believe you might be the right person to review this. Would you mind taking a look when you have a chance? Thank you – and please excuse me if I'm mistaken about the right person! 🙂

[mondaychen]

Thank you!!!!