Roll Dart SDK from 6e1161e70a00 to f79fb10acca8 (1 revision) (flutter#23272)

Author: skia-flutter-autoroll

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '6e1161e70a00257e0e170e277db60973a1471aac',
+  'dart_revision': 'f79fb10acca8f1e28731db8efa52feecd8b384df',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py