Upstream PR:
"Introduce a crdtp/dispatch.{h,cc} library."
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1974680
"For the shallow parse of a DevTools message, allow "params": null."
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/2109466

New Revision: c69cdc36200992d21a17bf4e5c2f3a95b8860ddf

Change-Id: Icc447ff9ce408b24f5245c643dd2f1843da9255f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2076215
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66813}