This directory is the Chromium-internal (*) counterpart of external/wpt. All
WPT features (except some wpt lint rules) are enabled in this directory,
including wptserve. This directory is mapped to wpt_internal/ on wptserve.
When including additional scripts from tests within this folder, the "root"
folder is external/wpt and paths should be relative to that. (e.g.,
/resources/testharness.js will reference external/wpt/resources/testharness.js).
(*) "Internal" in the sense that tests are not synchronized with the WPT upstream or other browser vendors.
This directory is primarily intended for testing non-web-exposed and/or
Blink-specific behaviours (Blink internal testing APIs are allowed) with WPT
goodness (wptserve, testharness, reftest, etc.). Please try to use external/wpt
whenever possible.
Note: tests have to go into subdirectories. Files in the root level of
wpt_internal/ are not recognized as tests.