Can you look into what the user action "FirstRunDef_Accept" is doing?  Maybe it already does what you want.
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/first_run/first_run.cc&l=822

Regardless if it does what you want, once you look into it, please add a description to actions.xml for it.

Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available. If you change it back, also remove the "Hotlist-Recharge-Cold" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot