chore: cherry-pick c11809b8c0 from chromium

[ppontes]

Enable ForceSynchronousHTMLParsing by default

This feature is enabled at 100% (with 1% stable holdback) on all
channels since M96. No unresolved problems have been reported,
and overall metrics are improved [1]. This CL enables the
ForceSynchronousHTMLParsing feature by default, and removes the
LoaderDataPipeTuning feature entirely, replacing it with newly-
hard-coded values from the launched experiment.

[1] https://docs.google.com/document/d/13GewLNZ50nqs0OI7-rzofOXtjuAlD0R4PMLTUsr73dg/edit#heading=h.ctbltu75kgzp

This part is cool:
Fixed: 901056
Fixed: 461877
Fixed: 761992
Fixed: 789124
Fixed: 995660
Fixed: 1038534
Fixed: 1041006
Fixed: 1128608
Fixed: 1130290
Fixed: 1149988
Fixed: 1231037
-> That's 85 stars worth of bugs, as of 12-13-21.

Not sure this is "fixed" by this CL, but it should at least address
comment #3:
Bug: 1087177

Change-Id: Icbf01ef6665362ae23f28657e5574ca705b82717
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2798812
Reviewed-by: Nate Chapin <japhet@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Mason Freed <masonf@chromium.org>
Cr-Commit-Position: refs/heads/main@{#951773}

Notes: Security: backported fix for CVE-2022-0801.

[release-clerk]

Release Notes Persisted

Security: backported fix for CVE-2022-0801.