Using the Rust toolchain from downstream Chromium projects

[Dana Jansens]

Hi all,

The Chromium project includes an ecosystem of libraries which are developed outside the Chromium repository but rolled into it (e.g. skia, pdfium, etc). Those libraries also have standalone builds which pull in the Chromium //build directory and toolchains.

We have completed the work to ensure the Rust toolchain and GN build rules in Chromium can be directly used in downstream projects.

The instructions are here https://docs.google.com/document/d/1Z1klo5Z80NkvrKHGANBTXbUIFhMFiR_zMLAHvxl7T9A/edit?resourcekey=0-jdkX2KZ6OXwSML_e-MUtVw and they are accessible to all members of the chromium-dev and rust-dev groups.

Please reach out if you run into any issues.

Cheers,

danakj