Roll Skia from 4cf577899cd7 to 39872b74befa (1 revision)

https://skia.googlesource.com/skia.git/+log/4cf577899cd7..39872b74befa

2022-05-06 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 2e793ae08002 to 2400435e05b1 (4 revisions)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC chinmaygarde@google.com,jlavrova@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

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/main/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -27,7 +27,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '4cf577899cd7edf930dea9887f54b34730772aaf',
+  'skia_revision': '39872b74befa16c78197191fab3d96eb2a87020f',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 1b37f5892914bfb90ee12c9496adbd5b
+Signature: 5159934fd74b1ea18d53ff008de719f3
 
 UNUSED LICENSES: