Roll Skia from 70c21e34ca4f to 917f9193d244 (2 revisions)

https://skia.googlesource.com/skia.git/+log/70c21e34ca4f..917f9193d244

2021-06-08 csmartdalton@google.com Delete GrPathTessellationShader::OpFlags::kPreferWedges
2021-06-08 nifong@google.com Move reduced shader mode logic outside test macro

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: I93e2b7aafa5ae191803cd11188a1de3476e1167c
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/416878
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 daf32dd..1e1f307 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': '70c21e34ca4f18d9b49214ca1af63cc7191dff78',
+  'skia_revision': '917f9193d24437f4b004fbf732152c0a6de93b7f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.