deps: cherry-pick 676c413 from upstream V8

Original commit message:

    [heap] Fix threshold for delayed chunks after 2c7561.

    Bug: chromium:771966
    Change-Id: Iac5ee55c0d31de477f21f091f4be015a1ca8d00c
    Reviewed-on: https://chromium-review.googlesource.com/702382


Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
    Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#48316}

Refs: https://github.com/v8/v8/commit/676c41321a948c08d6a43de43fe9b1d60ae81c00
Refs: https://github.com/nodejs/help/issues/917#issuecomment-339292642
Refs: https://bugs.chromium.org/p/chromium/issues/detail?id=771966

PR-URL: https://github.com/nodejs/node/pull/16490
Backport-PR-URL: https://github.com/nodejs/node/pull/16413


Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>