Roll skia ed98476cf248..f6a9d20e9579 (1 commits)

https://skia.googlesource.com/skia.git/+log/ed98476cf248..f6a9d20e9579

git log ed98476cf248..f6a9d20e9579 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 kjlubick@google.com [canvaskit] Fix null dereference when GrContext cannot be made

Created with:
  gclient setdep -r skia@f6a9d20e9579

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/+/master/autoroll/README.md

Bug: None
TBR=borenet@google.com
Change-Id: Id284da9a41ac90a987dabcdf9089a62f056123cb
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/253669
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 545f026..54d8cb3 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': 'ed98476cf24869c949b577a5347675685194068c',
+  'skia_revision': 'f6a9d20e95796775a95756c4c6dcf30054c7792d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.