Roll Skia from c057669d1b86 to 6bba1bcdc130 (2 revisions)

https://skia.googlesource.com/skia.git/+log/c057669d1b86..6bba1bcdc130

2021-02-17 mtklein@google.com impl WorkingFormatCF::getFlags()
2021-02-17 ethannicholas@google.com Added assert to catch unbalanced DSL FP Start/Ends

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-lottie-ci-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

Change-Id: I7f66bd5df3dd50f1fdc2c2980279dac2532c0022
Cq-Include-Trybots: skia/skia.primary:Housekeeper-PerCommit-InfraTests
Tbr: borenet@google.com
Reviewed-on: https://skia-review.googlesource.com/c/lottie-ci/+/371504
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 745b999..6f3df82 100644
--- a/DEPS
+++ b/DEPS
@@ -11,7 +11,7 @@
   # 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': 'c057669d1b86e0c9ce36fbb8f49a7825e9a9aec6',
+  '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.