Roll src/third_party/skia a6350f021e9a..23823669b3bb (7 commits)

https://skia.googlesource.com/skia.git/+log/a6350f021e9a..23823669b3bb

git log a6350f021e9a..23823669b3bb --date=short --first-parent --format='%ad %ae %s'
2020-02-19 reed@google.com simplify rotation calc
2020-02-19 herb@google.com Have SkStrikeCache track memory usage
2020-02-19 brianosman@google.com Reland "Add SkSLCompiler::toHLSL, using SPIRV-Cross"
2020-02-19 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-02-19 dmazzoni@chromium.org Re-land: Support adding attributes to PDF document structure nodes.
2020-02-19 jvanverth@google.com Add GrD3DGpu and GrD3DCaps.
2020-02-19 csmartdalton@google.com Remove a GL optimization that disabled large scissors

Created with:
  gclient setdep -r src/third_party/skia@23823669b3bb

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 lovisolo@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/+/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
Bug: chromium:1039816
Tbr: lovisolo@google.com
Change-Id: I2bda929ca640fd38cf2fabe542c5fcf25be8e93e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2065401Reviewed-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@{#742902}

DEPS

@@ -171,7 +171,7 @@ 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': 'a6350f021e9ac2ed881ac1029f57fd5ed6108453',
+  'skia_revision': '23823669b3bb4458377672f96bb82168bdbdc399',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.