New revision: 726836d7317a4031f48af9960bab51d7a2ab2867

The gist is that serialization is direct from
protocol objects to CBOR, no more detour via
protocol::Value.

Upstream PRs:
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1956388
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1966418

Also:
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1941035

Change-Id: I89f742a4fd47b5eb8ebd98ce6e10ecba0501cf66
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1958956Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65448}