Roll Skia from 4ecc0f43f243 to b6cce2d4c746 (1 revision)

https://skia.googlesource.com/skia.git/+log/4ecc0f43f243..b6cce2d4c746

2021-05-03 herb@google.com don't draw strings that have no glyphs

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: I8d62fc0929755d60bbb13e42589949e954e1ed70
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/403776
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 635444a..71a4dda 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': '4ecc0f43f243ef286ac47f2db0d6cc1c7ab687f4',
+  'skia_revision': 'b6cce2d4c7466d54f3d7e57abefd65cfe8ffeb99',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.