Danil Chapovalov f2443a7971 Replace WebRTC-QuickPerfTest field trial with a flag
This field trial is configured via command line flag, so may use flag system directly, reducing dependency on global field trial string.

Bug: webrtc:7101, webrtc:10335
Change-Id: I1e48e0e3fdc251b73a375c6d7f1a46fa4f8a179b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/322624
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40897}
2023-10-10 08:59:10 +00:00
..
2023-06-26 17:48:50 +00:00
2023-01-12 14:44:21 +00:00