Roll src/third_party/skia efb2133b0dd3..3b8486afd3fe (7 commits)

https://skia.googlesource.com/skia.git/+log/efb2133b0dd3..3b8486afd3fe

git log efb2133b0dd3..3b8486afd3fe --date=short --first-parent --format='%ad %ae %s'
2020-04-21 bsalomon@google.com Reland "Notify RTC when OpsTask is closed so it can drop ownership"
2020-04-21 bsalomon@google.com Improve selection of target_cpu in android_gdbserver
2020-04-21 bsalomon@google.com Remove unused GrTextureDomain
2020-04-21 lepton@chromium.org SkQP: Fix broken run_skqp_exe
2020-04-21 ethannicholas@google.com Prefixed the names of SkSL token constants.
2020-04-21 kjlubick@google.com Fixing a bug in SkOpEdgeBuilder::walk that causes pathOps to fail when cubic segment is reducable
2020-04-21 bsalomon@google.com Revert "Notify RTC when OpsTask is closed so it can drop ownership"

Created with:
  gclient setdep -r src/third_party/skia@3b8486afd3fe

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 jcgregorio@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: jcgregorio@google.com
Change-Id: Ie6d373b4601b25070e13883cb72a53d65fecc7f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2159283Reviewed-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@{#761166}

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': 'efb2133b0dd34e6d2719f83b7f9485523382cdb1',
+  'skia_revision': '3b8486afd3fea980facdd12456c6204b7de714f6',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.