Roll Skia from c9f475784fdb to a4bfa8d77f91 (1 revision)

https://skia.googlesource.com/skia.git/+log/c9f475784fdb..a4bfa8d77f91

2021-07-24 rmistry@google.com Test SkCQ

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: I0056e02f6f4d5555a84606449e17b17230508457
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/432419
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 1da5100..0d24ca5 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': 'c9f475784fdb20876afcb76e7a9f8a7f0187a304',
+  'skia_revision': 'a4bfa8d77f91c016fc5f6f2b6306f9a86bcd28b1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.