Support async_iterable<> in addition to async iterable<> Bug: 433299826 Change-Id: Iea06fd29185c74f394e0997a68f15b431e73780d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6860442 Commit-Queue: Andrey Kosyakov <[email protected]> Reviewed-by: Yuki Shiino <[email protected]> Cr-Commit-Position: refs/heads/main@{#1503104} NOKEYCHECK=True GitOrigin-RevId: 6845980b6dbb233228da2aed1d645576cc962c26