Reland "Use Clock in internal EventTracer"

This is a reland of commit ed6507b57e55cd3f1b590f0ae7df2c6bcab3c699

Reland safe: Use comment to deprecate rather than annotation

Original change's description:
> Use Clock in internal EventTracer
>
> This requires changes to X11 capturers due to a poorly defined macro in
> X11. 
>
> Bug: webrtc:42223992
> Change-Id: If9f8102386dc93142f9facfba21deb1f6a6a6964
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/445903
> Auto-Submit: Evan Shrubsole <eshr@webrtc.org>
> Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
> Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#46819}

Bug: webrtc:42223992
Change-Id: Ied9d07950cd35f132c17c3532581b5197a0fbfb1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/446780
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Auto-Submit: Evan Shrubsole <eshr@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#46832}