As a note, we are not yet passing this to the background so we only
have canonical persistent handles on the main thread.

Bug: v8:7790
Change-Id: I15b264cfacc2d5524a3d13f62574a3576bb7e1a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2330017
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69176}