Add WEB_FEATURES.yml for web-audio
Also add for the related features audio-worklet and
offline-audio-context.
Files must be specified per sub-directory, see:
#48467
Change-Id: I7114fe7604dcd7f20397111475e0fed500ab1f8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5901484
Commit-Queue: Michael Wilson mjwilson@chromium.org
Reviewed-by: Jack Hsieh chengweih@chromium.org
Cr-Commit-Position: refs/heads/main@{#1366227}