Roll Flutter Engine from 6f499ecea657 to 9b610ecda771 (1 revision) (#139063)

https://github.com/flutter/engine/compare/6f499ecea657...9b610ecda771

2023-11-27 matej.knopp@gmail.com Reduce number of surfaces required when presenting platform views (flutter/engine#43301)

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

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/flutter/+/422287b7a1295f3913cb14d4a4bfc21681ac391f

DEPS

diff --git a/DEPS b/DEPS
index 1b0f711..fd9c3f7 100644
--- a/DEPS
+++ b/DEPS
@@ -274,7 +274,7 @@
 
   'engine/src/third_party/dart': Var('dart_git') + '/sdk' + '@' + 'ebb856af29bcb9a894e7581642f16f1bbf9435b5',
 
-  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '754d6082cc3b98a14bd9c315e4ec7459b3765762',
+  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '422287b7a1295f3913cb14d4a4bfc21681ac391f',
 
   'engine/src/flutter/third_party/rapidjson':
    Var('fuchsia_git') + '/third_party/rapidjson' + '@' + 'ef3564c5c8824989393b87df25355baf35ff544b',

commits.json

diff --git a/commits.json b/commits.json
index 1cf7998..ed28714 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "engine/src/flutter":"6f499ecea6570f1b7df5c7813ef9e4456d56c426",
   "engine/src/third_party/dart":"ebb856af29bcb9a894e7581642f16f1bbf9435b5",
-  "flutter":"754d6082cc3b98a14bd9c315e4ec7459b3765762"
+  "flutter":"422287b7a1295f3913cb14d4a4bfc21681ac391f"
 }
\ No newline at end of file