tree 0d2de7ea9aaf66a921f02b026f00b3062f2e313b
parent f3c7cc5c580eb743829c78bb77df0c1e8f6a6ce3
author Lokbondo Kung <lokokung@google.com> 1728634067 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1728634067 +0000

[dawn][wire] Fixes last dropped reference for buffer unmap in wire.

- Makes the wire Buffer external refcounted so that when the last
  external reference is dropped, we can immediately resolve all
  mapAsync calls.
- Before this change, dropping the last external reference would
  not immediately trigger the callback.

Change-Id: I416d7ea91f020156bfb4b15b13b0d5d09c3e0aa2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/210135
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>