[M150] Abort pending AudioInputDeviceManager open when closed early

Original change's description:
> Abort pending AudioInputDeviceManager open when closed early
>
> AudioInputDeviceManager::Open() returns a session id immediately and
> queries the audio system asynchronously. If Close() is called for that
> session before the query completes, the device is not yet in |devices_|
> so Close() returns without doing anything, and the later
> OpenedOnIOThread() callback still registers the device, leaving a
> session that MediaStreamManager no longer tracks.
>
> Track sessions whose open is still in flight and drop the result of
> OpenedOnIOThread() when Close() has already been called for the session.
>
> Bug: 523505418
> Change-Id: Ib64b19cbf2fb3077bae7107b11d0570d4551efde
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8004471
> Commit-Queue: Tove Petersson <tovep@chromium.org>
> Reviewed-by: Guido Urdaneta <guidou@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1654054}

(cherry picked from commit 1787d529449a9e5c1d4aa4505f34fe98f6307c20)

Bug: 529631803,523505418
Change-Id: Ib64b19cbf2fb3077bae7107b11d0570d4551efde
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8031664
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