Roll Skia from 6d696086211d to a6ca9757d3a6 (8 revisions)

https://skia.googlesource.com/skia.git/+log/6d696086211d..a6ca9757d3a6

2020-10-02 brianosman@google.com Let skslc use more of Skia's core
2020-10-02 johnstiles@google.com Factor out Inliner candidate list assembly into its own function.
2020-10-02 brianosman@google.com Detect non-2D textures in MetalCodeGenerator and fail cleanly
2020-10-02 brianosman@google.com Fixes to array handling and interface blocks
2020-10-02 bsalomon@google.com Remove unused SkImage YUVA factories.
2020-10-02 fmalita@chromium.org [skottie] Auto-resize and VAlign support for point text
2020-10-02 egdaniel@google.com Remove some unneed read access from vk srcAccessMasks.
2020-10-02 ethannicholas@google.com Revert "Revert "moved SkSL FloatLiteral data into IRNode""

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 brianosman@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: brianosman@google.com
Change-Id: I2d8fe59a3c7347c5d1b8b6956f901edfc771c330
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2446914Reviewed-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@{#813414}

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': '6d696086211df59a339987e340430bca968d5dba',
+  'skia_revision': 'a6ca9757d3a649363a13cee73f6c7317c2483ab8',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.