Roll Skia from 2815b0389cca to a784914e74ed (5 revisions)

https://skia.googlesource.com/skia.git/+log/2815b0389cca..a784914e74ed

2021-06-09 brianosman@google.com Rudimentary SkRuntimeImageFilter
2021-06-09 csmartdalton@google.com Revert "Wean tessellation off SkPathOps"
2021-06-09 csmartdalton@google.com Fix tessellation checks for "usesVaryingCoords"
2021-06-09 brianosman@google.com Allow image filters to require a translation-only layer transform
2021-06-09 michaelludwig@google.com Don't discard user bounds for transparent-affecting 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: Id3f6f61f2a439807c7e0271e5cd6ec2491fbc49c
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/417277
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 e05ca4b..3010fd7 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': '2815b0389cca480f0b416445f2a870e3209b2c35',
+  'skia_revision': 'a784914e74ed667b655f04a439f237c8fa976a44',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.