Roll Skia from c184cf36092f to c9c4e2e9efac (5 revisions)

https://skia.googlesource.com/skia.git/+log/c184cf36092f..c9c4e2e9efac

2020-08-14 fmalita@chromium.org Componentize SkAudioPlayer
2020-08-14 johnstiles@google.com Use a scoped block for inlined return statements.
2020-08-14 robertphillips@google.com Update iOS Skottie App for GrContext changes
2020-08-14 robertphillips@google.com Require a direct context to precompile shaders in DM
2020-08-14 johnstiles@google.com Enable ClangTidy flag modernize-use-override.

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 fmalita@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: fmalita@google.com
Change-Id: I92e6793942257b113dd2ea590351c4d60b39f23a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2355520Reviewed-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@{#798138}

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': 'c184cf36092f65172d32d580df53a7c367115d5a',
+  'skia_revision': 'c9c4e2e9efac93ad5cd6bcabcb4ec53f0a0df70c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.