This directory contains Chromium-specific test resources, including mocks for test-only APIs implemented with [MojoJS](https://chromium.googlesource.com/chromium/src/+/main/mojo/public/js/README.md). Please do **not** copy `*.mojom.m.js` into this directory. Follow this doc if you want to add new MojoJS-backed mocks: https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md#mojojs