Roll Skia from 8bfe39160df9 to 871aa7479758 (1 revision)

https://skia.googlesource.com/skia.git/+log/8bfe39160df9..871aa7479758

2020-08-07 brianosman@google.com Add support for children to runtime color filters

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/master/autoroll/README.md

Tbr: borenet@google.com
Change-Id: I7f0dc21d6c643dd3d8b92c5eb4629b7016f95bd9
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/308678
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 04c8cbb..5e465c8 100644
--- a/DEPS
+++ b/DEPS
@@ -3,7 +3,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '8bfe39160df959d5ffce6472cc039dff51620838',
+  'skia_revision': '871aa74797588c5d8ee66e58466a7d73b4af58bb',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.