(forked from  issue 810423 , which only helped with the chromium repo)

We have trouble with random bozos clicking the Revert button on Chrome OS changes, e.g. https://crrev.com/c/976870 and https://crrev.com/c/979492.

Per agable@, "[a workaround] has been deployed, but it doesn't work fully for ChromeOS repos. At the moment, it is hardcoded to only show the Revert and Reland buttons to people who can vote "Code-Review+1", as opposed to people who can vote "Code-Review+[MAX_VALUE]". Since everyone can vote CR+1 in ChromeOS repos, it doesn't hide the buttons there.

Generalizing this behavior is rather non-trivial."