Add a WebRTC-specific arg that can be used to control use of targets
that rely on //third_party/google_benchmarks, so the .gni in that
directory can eventually be removed.
Bug: chromium:1404759
Change-Id: I2a9422fae119ca13eb50028d962fc0a671b5fb33
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/297460
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/main@{#39553}
1e6d77c29a