Roll Skia from 8673a5f66369 to ea6c40b628e6 (4 revisions) (#165889)

https://skia.googlesource.com/skia.git/+log/8673a5f66369..ea6c40b628e6

2025-03-25 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE
from 2657dba2814d to c04839007ac8 (15 revisions)
2025-03-25 lokokung@google.com [dawn][headers] Use ifdefs / updates for
InstanceDropped renames.
2025-03-25 robertphillips@google.com [graphite] Re-enable Precompilation
tests on TSAN (take 2)
2025-03-25 bungeman@google.com [fontations] Destructure tuple for
clarity

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 jimgraham@google.com,kjlubick@google.com,maxhudnell@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://issues.skia.org/issues/new?component=1389291&template=1850622

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

DEPS

@@ -14,7 +14,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '8673a5f663693f6913044bbf03f30363d20d421c',
+  'skia_revision': 'ea6c40b628e66ff571813698cd28fbb1c08b2796',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 244a9232f5ba9990b86ea7f87e21d6de
+Signature: 13b811d84d8c772b55e8794ac4c6279a
 
 ====================================================================================================
 LIBRARY: etc1