Roll Skia from 6c2764b93c06 to c6b08485aa11 (9 revisions)

https://skia.googlesource.com/skia.git/+log/6c2764b93c06..c6b08485aa11

2021-07-12 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2021-07-12 csmartdalton@google.com Fix the AppleM1 skpbench bot name
2021-07-12 jvanverth@google.com Make GrMtlAttachment a little more generic.
2021-07-12 johnstiles@google.com Disable SkSLMatrixToVectorCast test on Adreno 4/5/6xx.
2021-07-12 johnstiles@google.com Shore up matrix/vector conversion tests.
2021-07-12 johnstiles@google.com Support the Boolean form of mix() in the Metal/SPIR-V backends.
2021-07-12 ethannicholas@google.com Fixed some fixups not being applied to DSL code
2021-07-12 johnstiles@google.com Add support for mat2-to-ivec4 conversions in SkSL.
2021-07-12 johnstiles@google.com Disable SkSLMatrixToVectorCast test on Adreno 330.

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

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Tbr: borenet@google.com
Change-Id: I7f5b8aa6c28e0459feecd5a91caa9dd7a0898e66
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/427136
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
1 file changed