Roll Skia from 13fa34606b78 to c49da0b5192d (14 revisions)

https://skia.googlesource.com/skia.git/+log/13fa34606b78..c49da0b5192d

2020-10-20 mtklein@google.com upstream cl/337571894 with tweaks
2020-10-20 robertphillips@google.com Pull the triangulating path renderer's shape-space triangulation into a helper method
2020-10-20 fmalita@chromium.org [svg] Parse text attributes
2020-10-20 johnstiles@google.com Clear the `builtin` status of SkSL nodes when they are cloned.
2020-10-20 adlai@google.com Almost remove GrContext
2020-10-20 kjlubick@google.com [canvaskit] Make build docs more clear
2020-10-20 jmbetancourt@google.com add new DemoActivity to showcase SkottieView xml loading and surface view backing
2020-10-20 johnstiles@google.com Fix frexp support in Metal.
2020-10-20 kjlubick@google.com [canvaskit] Add task driver for running GMs on WASM/WebGL.
2020-10-20 johnstiles@google.com Sort SkSL gencode enums by value, not name.
2020-10-20 michaelludwig@google.com Allow kNoCropRect to be referenced
2020-10-20 mtklein@google.com allow early returns
2020-10-20 robertphillips@google.com Better encapsulate creation & usage of triangulating path renderer's key data
2020-10-20 johnstiles@google.com Add a fBuiltin flag to FunctionDefinition.

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/+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: chromium:1108408,chromium:1139725
Tbr: egdaniel@google.com
Change-Id: I6db45e1c51d8fc599c94100d10b197d86c3cc92e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2487172Reviewed-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@{#819035}

DEPS

@@ -206,7 +206,7 @@ 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': '13fa34606b78b9d01d4c34fcadb5f09de9393818',
+  'skia_revision': 'c49da0b5192d7ab601b3e33f04390780beccfb5f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.