GitLab

With this roll, tweak the dependency from inspector to a public_deps.
It's needed because Serializable is exported from CRDTP now.

Upstream review (already merged):
https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1931280

Change-Id: I33c4aee3397ed4e746fc8605ce5911a2efc4c2ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1927577Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719254}