This is the engine counterpart for https://github.com/flutter/buildroot/pull/701. That pull-request contains more context and the main motivation for this change. This should fix some startup performance issues related to font loading on desktop linux: https://github.com/flutter/flutter/issues/118911. [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style