Zachary Anderson 8684cf418a Refactors RBE support (flutter/engine#49416) ...

This PR refactors the RBE build and adds support for mac-hosted builds
to use RBE. In particular, configurations files are downloaded from
flutter-internal CIPD instead of being included in the repo. The
download from CIPD is triggered by the presence of the `use_rbe` flag as
a custom var in the `.gclient` file.

This PR also turns on RBE for Linux and macOS builds that do not produce
artifacts.

https://github.com/flutter/buildroot/pull/807

2024-01-09 14:38:57 -08:00

..

src/flutter

Refactors RBE support (flutter/engine#49416)

2024-01-09 14:38:57 -08:00