Roll Skia from b9d078716d40 to 45e4d2cbdd4f (2 revisions) (#51806)

https://skia.googlesource.com/skia.git/+log/b9d078716d40..45e4d2cbdd4f

2024-04-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SK Tool from df0949e75440 to c70da7bc67c4
2024-04-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from 2126889e45aa to 591c327b3bb5 (11 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 brianosman@google.com,jacksongardner@google.com,kjlubick@google.com,rmistry@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
https://dart.googlesource.com/external/github.com/flutter/engine/+/984a78b046714927ce857e7aba354f68340a785d
diff --git a/DEPS b/DEPS
index b829d45..3be6411 100644
--- a/DEPS
+++ b/DEPS
@@ -14,7 +14,7 @@
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': 'b9d078716d40de1a5add4a79f53dac14573b66d0',
+  'skia_revision': '45e4d2cbdd4f47e54a13357fb113a495e8d939b3',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.
@@ -291,7 +291,7 @@
 deps = {
   'engine/src': 'https://github.com/flutter/buildroot.git' + '@' + 'ba3ca696f4f95e998707523be755c15440c6bf3f',
 
-  'engine/src/flutter': Var('flutter_git') + '/mirrors/engine' + '@' + '776a344012d2587ff62bb3238024b2bafda7407e',
+  'engine/src/flutter': Var('flutter_git') + '/mirrors/engine' + '@' + '984a78b046714927ce857e7aba354f68340a785d',
 
   'engine/src/third_party/dart': Var('dart_git') + '/sdk' + '@' + '9b2b0ac848af91baef45cd56c5b030fa3ef53c0b',
 
diff --git a/commits.json b/commits.json
index 8ba3a74..e00e152 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
-  "engine/src/flutter":"776a344012d2587ff62bb3238024b2bafda7407e",
+  "engine/src/flutter":"984a78b046714927ce857e7aba354f68340a785d",
   "engine/src/third_party/dart":"9b2b0ac848af91baef45cd56c5b030fa3ef53c0b",
   "flutter":"fd8561a917db945f3b15b44ca4fa241b0c3987d6"
 }
\ No newline at end of file