Roll Skia from 4635b5dad022 to 6bba1bcdc130 (1 revision)

https://skia.googlesource.com/skia.git/+log/4635b5dad022..6bba1bcdc130

2021-02-17 mtklein@google.com impl WorkingFormatCF::getFlags()

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: I9cad163c78c355070c131508965eb281670a48eb
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/373997
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 1912477..273bc42 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': '4635b5dad02226243098b7ef64400191aba71812',
+  'skia_revision': '6bba1bcdc130089eacc184bbb8b86f4831651433',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.