Roll src/third_party/skia 61169e9c4794..4a327bcb1019 (3 commits)

https://skia.googlesource.com/skia.git/+log/61169e9c4794..4a327bcb1019

git log 61169e9c4794..4a327bcb1019 --date=short --first-parent --format='%ad %ae %s'
2019-11-25 herb@google.com Fix chrome build bots
2019-11-25 herb@google.com Structured binding for SkZip and SkEnumerate
2019-11-25 herb@google.com Simplify SubRun structure in GrTextBlob

Created with:
  gclient setdep -r src/third_party/skia@4a327bcb1019

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 bungeman@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
Bug: None
Tbr: bungeman@google.com
Change-Id: I121c7bf090c7586fac33f8e24e476b9db7332164
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1933380Reviewed-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@{#718781}

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': '61169e9c479430756c2ce6731da4037c524d6c87',
+  'skia_revision': '4a327bcb1019ade063dcf2d78102fdf0a1538bc7',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.