This crate has been copied upstream verbatim. This crate is used as an
audio backend for playback (capture has not been implemented yet).
The next CLs are will upstream the usage of win_audio.
Bug: 232462411
Test: built and presubmits (although this crate won't be built locally or
presubmits yet)
Change-Id: Iae374b2b575fbd19b016cae403a00024896cba56
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3694097
Commit-Queue: Richard Zhang <rizhang@google.com>
Reviewed-by: Noah Gold <nkgold@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
