Roll src/third_party/skia 345a2735e2c8..c4420ef3dc6c (1 commits)

https://skia.googlesource.com/skia.git/+log/345a2735e2c8..c4420ef3dc6c

git log 345a2735e2c8..c4420ef3dc6c --date=short --no-merges --format='%ad %ae %s'
2019-11-07 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 1d09b983031b..cc0919dcb64b (8 commits)

Created with:
  gclient setdep -r src/third_party/skia@c4420ef3dc6c

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

CQ_INCLUDE_TRYBOTS=luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-blink-rel;luci.chromium.try:linux-chromeos-compile-dbg;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
TBR=ethannicholas@google.com

Bug: chromium:None
Change-Id: If7d89f32291844c1dbf0324f5a0bdc72e1760941
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1903308Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#713374}

DEPS

@@ -172,7 +172,7 @@ vars = {
   # 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': '345a2735e2c8e3188f01938cdc62848bf64cf97f',
+  'skia_revision': 'c4420ef3dc6c5688193da062d6ce81e84eb385ab',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.