Roll Flutter Engine from 969fb7abc449 to 9739d92f2696 (1 revision) (#152041)

https://github.com/flutter/engine/compare/969fb7abc449...9739d92f2696

2024-07-19 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Reverts "Drop deprecated hash_code functions (#54000)" (#54002)" (flutter/engine#54004)

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 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/+/b0e748d35f9ff2f3dfbd6f53d977bc66981b2599
diff --git a/DEPS b/DEPS
index 42ebe37..a146406 100644
--- a/DEPS
+++ b/DEPS
@@ -284,7 +284,7 @@
 
   'engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '8fd19d1f885bfa513ff30a72d453425d08f13809',
 
-  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '49a315284d11b049f5a07ac8a464420d8449b397',
+  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + 'b0e748d35f9ff2f3dfbd6f53d977bc66981b2599',
 
   'engine/src/flutter/third_party/depot_tools':
   Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '580b4ff3f5cd0dcaa2eacda28cefe0f45320e8f7',
diff --git a/commits.json b/commits.json
index 91ae8b4..3cc9279 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "engine/src/flutter":"6312dfc492cd6e0eb0768b164912d97451029c3a",
   "engine/src/flutter/third_party/dart":"8fd19d1f885bfa513ff30a72d453425d08f13809",
-  "flutter":"49a315284d11b049f5a07ac8a464420d8449b397"
+  "flutter":"b0e748d35f9ff2f3dfbd6f53d977bc66981b2599"
 }
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