VNC access to Chromebook?

My grandmother is beginning to use a computer soon. We are giving her a chromebook so that it will be easier to keep the settings right, and not get lost.

However, for support purposes, and helping set up new things like bookmarks, plugins, and so forth, we want to set up remote control of the chromebook. It is not necessary for her to approve each remote control session.

We do have physical access to the machine before we deliver it to her. This will give us an opportunity to make any changes necessary to allow this.

I am a competent software developer, and can work with Linux, but have never worked under the hood of a chromebook before. What would be necessary to accomplish this remote access?

This has recently become possible to do with the Chrome Remote Desktop App.

Brief instructions:

• Install the Chrome Remote Desktop App on the Chromebook and Chrome on your computer.
• On the Chromebook: (You'll have to show your grandmother how to do this.)
  • Launch the app. (I guess the most convenient way would be to Pin it to the Shelf ahead of time.)
  • Under Remote Assistance, click "Get Started". (I think you only need to click this the first time you use the app.)
  • Click the green Share button.
  • (Click "Share" at the prompt.)
  • A 12-digit access code appears.
• On your Chrome browser:
  • Launch the app.
  • Under "Remote Assistance", click "Get Started".
  • Click "Access" next to "See and control a shared computer".
  • (It asks for an access code.)
  • Enter the access code that the Chromebook computer generated.