Roll src/third_party/skia 56015e01150e..d7e0131c7edc (5 commits)

https://skia.googlesource.com/skia.git/+log/56015e01150e..d7e0131c7edc

git log 56015e01150e..d7e0131c7edc --date=short --first-parent --format='%ad %ae %s'
2020-03-18 reed@google.com remove old experimental apis
2020-03-18 egdaniel@google.com Revert "Set up eGPU/discrete support for MacOS."
2020-03-17 csmartdalton@google.com Remove FixedDynamicState from GrProgramInfo and GrPipeline
2020-03-17 jvanverth@google.com Set up eGPU/discrete support for MacOS.
2020-03-17 herb@google.com Arrange instruction to reduce register pressure

Created with:
  gclient setdep -r src/third_party/skia@d7e0131c7edc

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 egdaniel@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: egdaniel@google.com
Change-Id: I4bf3ac112387d57765946da995d2a30231078d4f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108584Reviewed-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@{#751311}

DEPS

@@ -175,7 +175,7 @@ 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': '56015e01150eaab826a8ef2526a34cfe67868b6a',
+  'skia_revision': 'd7e0131c7edccfcc777f5d0defee4aa8b2d53ddf',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.