Roll Skia from 8f3a83671a13 to 1c62a7b034c0 (7 revisions)

https://skia.googlesource.com/skia.git/+log/8f3a83671a13..1c62a7b034c0

2020-06-30 csmartdalton@google.com Implement stroking with GPU tessellation
2020-06-30 brianosman@google.com SkSL: Rename isConstant to isCompileTimeConstant
2020-06-30 brianosman@google.com SkSL: Variable references are never "isConstant"
2020-06-30 westont@google.com [infra] Add xcode-11.4.1 asset
2020-06-30 michaelludwig@google.com Support sample coords in .fp main()
2020-06-30 robertphillips@google.com Make the GrDirectContext a thing and move it to include/private
2020-06-30 bungeman@google.com Remove SkWhitelistTypefaces.

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/+doc/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: ethannicholas@google.com
Change-Id: Idf6efddfd3b2f4d843cf89746a38f56853e6a686
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2274111
Reviewed-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@{#784068}

DEPS

@@ -188,7 +188,7 @@ 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': '8f3a83671a134f84b4863b65a2dbd05469242a28',
+  'skia_revision': '1c62a7b034c073dae64784a57bb4f794d41db893',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.