[flutter_tools] integration.shard/timeline_test.dart flaky on Windows #115799
Description
This flaked once today at https://ci.chromium.org/p/flutter/builders/prod/Windows%20tool_integration_tests_6_6/4814?
04:16 +26 -1: test\integration.shard\timeline_test.dart: Can connect to the timeline without getting ANR from the application [E]
Expected: 'ParallelScavenge'
Actual: 'IterateStoreBuffers'
Which: is different.
Expected: ParallelSc ...
Actual: IterateSto ...
^
Differ at offset 0
package:test_api expect
test\integration.shard\timeline_test.dart 99:11 main.<fn>
And in looking at the history of the last ~100 runs, I see a similar flake: https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8797300915280896593/+/u/run_test.dart_for_tool_integration_tests_shard_and_subshard_6_6/test_stdout
04:23 +26 -1: test\integration.shard\timeline_test.dart: Can connect to the timeline without getting ANR from the application [E]
Expected: 'CollectNewGeneration'
Actual: 'ParallelScavenge'
Which: is different.
Expected: CollectNew ...
Actual: ParallelSc ...
^
Differ at offset 0
package:test_api expect
test\integration.shard\timeline_test.dart 99:11 main.<fn>
I suspect this is a race condition