Roll Skia from cfae2af1bfeb to 31799e707cd4 (4 revisions) (#191649)

https://skia.googlesource.com/skia.git/+log/cfae2af1bfeb..31799e707cd4

2026-08-25 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE
from 80760643c85e to 9d57491334bd (7 revisions)
2026-08-25 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Skia
Infra from 00004eadd242 to 51ab41fb1557 (7 revisions)
2026-08-25
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2026-08-25 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn
from 55d132a23849 to 84eeb817a85e (19 revisions)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC awolff@google.com,fmalita@google.com,kjlubick@google.com on
the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md