Roll Skia from e1e240804211 to 6a4e145832a9 (28 revisions)

https://skia.googlesource.com/skia.git/+log/e1e240804211..6a4e145832a9

2020-08-21 egdaniel@google.com Make some public vulkan structs use default initialization.
2020-08-21 fmalita@chromium.org [canvaskit] Fix for OffscreenCanvas-unaware browsers
2020-08-21 jmbetancourt@google.com add SurfaceView support for skottie on android
2020-08-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 5dff6075d29f to d3e800e9ad66 (7 revisions)
2020-08-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from cbfd396756c6 to 44e1791f100c (1 revision)
2020-08-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from e45f0c4d to d3d82066 (463 revisions)
2020-08-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll dawn from eff9ef0f2212 to e8dc820fbc1e (6 revisions)
2020-08-20 johnstiles@google.com Fix thread-unsafe writes to function declarations in the symbol table.
2020-08-20 ethannicholas@google.com Reland "SkSL now supports uniform array types"
2020-08-20 hcm@google.com add M86 branch release notes
2020-08-20 fmalita@chromium.org [skottie] Custom prop manager updates
2020-08-20 jlavrova@google.com Fixing incorrect boundaries calculations + 3 ways of drawing a paragraph
2020-08-20 ethannicholas@google.com replaced SkSL nodeCount with visitor
2020-08-20 nifong@google.com Add origin visualization, add support for Concat44
2020-08-20 ethannicholas@google.com Reland "SkSL CPP and H backends no longer emitted in non-dev builds"
2020-08-20 johnstiles@google.com Migrate additional casts to as<T>.
2020-08-20 kjlubick@google.com Remove webgl from public.bzl
2020-08-20 csmartdalton@google.com Add new tests to trickycubicstrokes
2020-08-20 johnstiles@google.com Remove sk_TextureSamplers from SkSL.
2020-08-20 bungeman@google.com Notify when SkFontMetrics bounds are bogus.
2020-08-20 kjlubick@google.com [canvaskit] Remove getproc when creating WebGL interface
2020-08-20 kjlubick@google.com [canvaskit] Remove fringe EGL dependency.
2020-08-20 kjlubick@google.com [canvaskit,pathkit] Update to emsdk 2.0
2020-08-20 nikolay.igotti@jetbrains.com Search ICU data on Windows relative to the current module.
2020-08-20 johnstiles@google.com Add as<ProgramElementSubclass> to downcast ProgramElements more safely.
2020-08-20 ethannicholas@google.com Reland "Added support for the 'inline' hint on SkSL functions"
2020-08-20 hcm@google.com Update Skia milestone to 87
2020-08-20 reed@google.com Can we remove this flag to picture-recording?

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 stani@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: stani@google.com
Test: Test: Test: FramebufferTest_ES31.*Blit*Test: Test: VulkanPerformanceCounterTest_ES31.MultisampleResolveWithBlit
Change-Id: Id8bd9f76e8d9b09206e3bca8de8f7f18f979d502
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2369163Reviewed-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@{#800589}

DEPS

@@ -195,7 +195,7 @@ 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': 'e1e24080421116cf5d63b55cd5042176bebc0a43',
+  'skia_revision': '6a4e145832a9404a380fcf125d0693e1267430b2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.