tree ec97582c3510063bbb9d1906e8e3e6ab49c51bf6
parent 40abb7d8ff6ebdb8095d372c18949940c5fcecb5
author Byoungchan Lee <daniel.l@hpcnt.com> 1633519539 +0900
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1633661271 +0000

Use GCD instead of Detached Thread in Async Resolver when on MacOS/iOS

The advantage is that GCD maintains the internal thread pool and
spawns threads when needed. I would expect the behavior to be
almost identical to creating a thread using PlatformThread.

Bug: webrtc:13237
Change-Id: Ie4406b5d128c244f66a73830d5a27f2d8fd88549
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/234300
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Byoungchan Lee <daniel.l@hpcnt.com>
Cr-Commit-Position: refs/heads/main@{#35165}