Roll Skia from dd16cb59745a to ad48610a0129 (13 revisions)

https://skia.googlesource.com/skia.git/+log/dd16cb59745a..ad48610a0129

2020-09-17 herb@google.com use digests internally for SkScalerCache
2020-09-17 reed@google.com Refactor API for mipmap-builder,
2020-09-17 mtklein@google.com Reland "refactor any()/all(), ptest for all()"
2020-09-17 johnstiles@google.com Allow constant propagation of unary negation.
2020-09-17 kjlubick@google.com [canvaskit] Add demo on how to decode images in web worker
2020-09-17 mtklein@google.com Reland "update skvx scalar-fallback strategy"
2020-09-17 brianosman@google.com Disallow narrowing conversions as part of matrix multiply-assignment
2020-09-17 egdaniel@google.com Don't always set vulkan blend constant when not using it.
2020-09-17 herb@google.com rename SkGlyphIndex to SkGlyphDigest
2020-09-17 herb@google.com refactor making a new glyph
2020-09-17 brianosman@google.com SkSL: Only allow bitwise ops on integral types
2020-09-17 johnstiles@google.com Migrate several SkSLFP tests to golden outputs.
2020-09-17 johnstiles@google.com Migrate several GLSL workaround unit tests to golden files.

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 scroggo@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:1129408
Tbr: scroggo@google.com
Change-Id: Id66bea3652853af558d3a7fe2d78d6ab8bff61e3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2417321Reviewed-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@{#808169}

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': 'dd16cb59745a5b53ca0a4aad53eff4b9a8ce4ec5',
+  'skia_revision': 'ad48610a0129c3cb66c07815c440811f1e57a7f1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.