Roll src/third_party/skia 6e486cec6a10..c5df7cb3d9f7 (4 commits) (flutter/engine#6877)

https://skia.googlesource.com/skia.git/+log/6e486cec6a10..c5df7cb3d9f7


Created with:
  gclient setdep -r src/third_party/skia@c5df7cb3d9f7

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '6e486cec6a10d8ad447adcca07dab8f1d2d88b79',
+  'skia_revision': 'c5df7cb3d9f7e60689d8b77b6505454131e26f55',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 31bd3c5c8a6710950fdc4db290ee4efa
+Signature: c3aaf2b9bf49a7fa056758ab0099ce85
 
 UNUSED LICENSES: