Roll engine 69ebe5fb28fc..a4b7d1c2895d (3 commits) (#33697)

https://github.com/flutter/engine/compare/69ebe5fb28fc..68a3ca46b40a

git log 69ebe5fb28fca271b23010d43d4dc7f6e5286c4f..a4b7d1c2895d82228705a021cdb7fdb2f71ac2a5 --no-merges --oneline
4c6253cdd Copy the macOS podspec during builds (#9158)
68a3ca46b Roll src/third_party/dart 445a23a9bc..0e6b74543c (29 commits) (#9159)
1d1cff1fa Roll src/third_party/skia 3cd435eecf5e..09f5aedf2cc8 (3 commits) (#9160)

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Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff (cbracken@google.com), and stop
the roller if necessary.

bin/internal/engine.version

-69ebe5fb28fca271b23010d43d4dc7f6e5286c4f
+a4b7d1c2895d82228705a021cdb7fdb2f71ac2a5

packages/flutter_test/lib/src/binding.dart

@@ -1763,9 +1763,10 @@ class _MockHttpResponse extends Stream<List<int>> implements HttpClientResponse
   @override
   int get contentLength => -1;
 
-  // @override
-  // TODO(tvolkert): Uncomment @override annotation once SDK change lands.
-  bool get autoUncompress => true;
+  @override
+  HttpClientResponseCompressionState get compressionState {
+    return HttpClientResponseCompressionState.decompressed;
+  }
 
   @override
   List<Cookie> get cookies => null;

packages/flutter_tools/lib/src/base/io.dart

@@ -47,6 +47,7 @@ export 'dart:io'
         HttpClient,
         HttpClientRequest,
         HttpClientResponse,
+        HttpClientResponseCompressionState,
         HttpHeaders,
         HttpRequest,
         HttpServer,

packages/flutter_tools/test/commands/create_test.dart

@@ -1257,6 +1257,11 @@ class MockHttpClientResponse extends Stream<List<int>> implements HttpClientResp
   @override
   String get reasonPhrase => '<reason phrase>';
 
+  @override
+  HttpClientResponseCompressionState get compressionState {
+    return HttpClientResponseCompressionState.decompressed;
+  }
+
   @override
   StreamSubscription<List<int>> listen(
     void onData(List<int> event), {