Disable the use of chromium worker threads
Disable the use of chromium worker threads

The use of worker thread is chromium is triggering CFI error.

This CL disables the use of chromium worker pool to avoid
blocking the roll-deps:
  https://chromium.googlesource.com/angle/
      angle.git/+log/1be395fe1250..a935c65a0488

The intend is to avoid the effects of the fix from that CL:
  https://chromium-review.googlesource.com/c/angle/angle/+/2262573
Instead of reverting the CL (with is an obvious mistake) we disable
the feature.

Bug: chromium:1091259
Change-Id: I4e473ec42be2a82e47e2e4c882f75ba33bcd9476
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2275730
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Etienne Bergeron <72977556adb407c83e4c510020c5fe46488477ad@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle