Roll src/third_party/skia d96ef09317d6..56df7910b051 (1 commits)

https://skia.googlesource.com/skia.git/+log/d96ef09317d6..56df7910b051

git log d96ef09317d6..56df7910b051 --date=short --no-merges --format='%ad %ae %s'
2019-09-11 halcanary@google.com experimental/minimal_ios_mtl_skia_app: clean up

Created with:
  gclient setdep -r src/third_party/skia@56df7910b051

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 mtklein@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=mtklein@google.com

Bug: None
Change-Id: Ica653799ac3e5df09b4c2589728904c72d60dec7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1798564Reviewed-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@{#695643}

DEPS

@@ -162,7 +162,7 @@ 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': 'd96ef09317d6fdb7f53584cff5d76c4896fef261',
+  'skia_revision': '56df7910b051fa40029153e48f55a72101defadd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.