Roll third_party/skia/ d20e8e933..4c3486e6f (572 commits; 1 trivial rolls)

https://chromium.googlesource.com/skia.git/+log/d20e8e933ff7..4c3486e6f1de

Created with:
  roll-dep third_party/skia

Change-Id: I48b5b77e47c0ac85b99bcbd6854e46ad6176d866
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/74472
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index c53ae39..4a367b5 100644
--- a/DEPS
+++ b/DEPS
@@ -99,7 +99,7 @@
   # 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': 'd20e8e933ff7c031d94d9013654ee4de191198b0',
+  'skia_revision': '4c3486e6f1ded4f058744e02d4ad8ddc60cb9ac2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling tools_memory
   # and whatever else without interference from each other.