Roll Skia from ace17c2f4689 to ce9d8e143d7a (2 revisions)

https://skia.googlesource.com/skia.git/+log/ace17c2f4689..ce9d8e143d7a

2021-05-27 brianosman@google.com Remove all traces of OpenCL
2021-05-27 csmartdalton@google.com Fix trickycubicstrokes and widebuttcaps bg colors on GpuTess

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/android-master-autoroll
Please CC stani@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/master/autoroll/README.md

Test: Presubmit checks will test this change.
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.
Bug: b/186777432
Change-Id: Ica2d7b11ecd541e2084972084f7b525a2ba0a41a