Chromite Butler is a free Chrome add-on designed specifically for chromium developers. It aims to enhance the functionality of buildbot and codereview UIs, providing useful information and features to streamline the development process. With Chromite Butler, developers can easily access important information and perform various actions within the polygerrit, rietveld, and buildbot interfaces.

In the polygerrit/rietveld UI, Chromite Butler offers valuable insights into code reviews. It displays which files have been LGTMed by owners, identifies files that are missing owner reviews, and suggests a list of potential reviewers for files that still require review. Additionally, it allows developers to conveniently add OWNERS to the reviewer list, ensuring that the appropriate individuals are involved in the review process.

In the buildbot UI, Chromite Butler provides essential information for analyzing failures. It shows the blame-list, allowing developers to quickly identify the contributors responsible for specific issues. Furthermore, it offers links to the changed files, enabling easy access to the relevant code for a particular run in buildbot.

Chromite Butler is a valuable tool for chromium developers, offering enhanced functionality and streamlined workflows in the buildbot and codereview UIs. With its array of features, it simplifies code review processes and aids in identifying and resolving failures efficiently.