tree 202c3f7117c9c3f9a0b4680d53f8b7d78ee919e5
parent bc1e902dd9792ef2b85546b9fc103df04391ae10
author bnc <bnc@google.com> 1628620784 -0700
committer Copybara-Service <copybara-worker@google.com> 1629752363 -0700

Do not call GetQuicReloadableFlag() from QuicVersionManager constructor.

Initialize disable_ members to true so that in case there is a bug with lazy
initialization, QUIC versions are disabled by mistake (performance loss) instead
of untested versions enabled (can of worms).  Rely on
MaybeRefilterSupportedVersions() calls from accessors.

Return reloadable flag from disable_version_q050() instead of cached value which
might be stale.

Remove filtered_alt_svc_versions_ assignment and AddCustomAlpn() call from
GfeQuicVersionManager constructor, because MaybeRefilterSupportedVersions() will
be called anyway before affected members are accessed.

Protected by FLAGS_quic_restart_flag_quic_lazy_quic_version_manager.

PiperOrigin-RevId: 389937880