Chromium stable 153.0.8010.12 available — we are pinned at 151.0.7922.174 #166

Chrome stable for Windows is now 153.0.8010.12; scripts/config.env pins 151.0.7922.174.

Every dot-release in between carries Chrome security fixes we are not shipping —
exactly the gap the Preview disclaimer describes (maintenance-policy).

To close this: rebase the patch series onto 153.0.8010.12, run the weave gate, build,
sign, publish — see security-rebase-automation.

scripts/weave-gate.sh --old 151.0.7922.174 --new 153.0.8010.12 --src <chromium-src>

A clean gate (rc=0) means no hardware eyeball is needed for this one.

Filed automatically by chromium-watch (#35).