Roll Skia from d8e9436a78bf to 77ba8103d34f (10 revisions)

https://skia.googlesource.com/skia.git/+log/d8e9436a78bf..77ba8103d34f

2021-01-13 brianosman@google.com In runtime effects, verify that loops conform to ES2 rules
2021-01-13 mtklein@google.com make SkShaderBase::onProgram pure virtual
2021-01-13 csmartdalton@google.com Use tolerance==0 to flatten curves in GrTriangulator
2021-01-13 kjlubick@google.com [canvaskit] Expose getShadowLocalBounds
2021-01-13 bsalomon@google.com Revert "Push SkYUVAInfo into GrYUVToRGBEffect."
2021-01-13 johnstiles@google.com Update tests which mix int and float types without casts.
2021-01-13 johnstiles@google.com Allow type-fluid GLSL-style vec2(int, bool) ctors in SkSL.
2021-01-13 reed@google.com Begin to hide drawBitmap
2021-01-13 bsalomon@google.com Push SkYUVAInfo into GrYUVToRGBEffect.
2021-01-13 johnstiles@google.com Update VectorConstructor unit test with mixed-type ctors.

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
Cq-Do-Not-Cancel-Tryjobs: true
Bug: None
Tbr: ethannicholas@google.com
Change-Id: I95d4b474169c6c445b0e2a3f1c67c980f61da5f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2627295Reviewed-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@{#843279}

DEPS

@@ -199,7 +199,7 @@ 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': 'd8e9436a78bf19c32e3c43a5bd953a5b579ded5a',
+  'skia_revision': '77ba8103d34fc821bdbba9f2a54a7d7371d1d56f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.