Roll Skia from 2d5a75027691 to 5515c08c2e44 (3 revisions) (#54941)

https://skia.googlesource.com/skia.git/+log/2d5a75027691..5515c08c2e44

2024-09-03 [email protected] [webgpu-headers] Add macro for dropping "descriptor"
2024-09-03 [email protected] Reland "Split FreeType & FontConfig, step #1"
2024-09-03 [email protected] [rust png] Minimal `onGetFrameInfo` to support non-animated images.

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 [email protected],[email protected],[email protected],[email protected] 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

Author: skia-flutter-autoroll

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': '2d5a75027691e0fe93c84407b159d08359cc0b0d',
+  'skia_revision': '5515c08c2e444dca4d18fa252ea5e629f27850aa',
 
   # 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: 69063e5b21502b7ac1f65b090bbe8317
+Signature: b6d2e0f7e64ab252a104afc032e2bc23
 
 ====================================================================================================
 LIBRARY: etc1