31e3364771
This change updates the platform runners in the benchmarks subdir. I've attempted to replace the entire group with new code as if the project were recreated with flutter create so that they don't become a Frankenstein of minor changes to make it work again, but just plain old generated code that can be replaced and updated in place.
platform_views_layout_hybrid_composition
Scrolling benchmark
To run the scrolling benchmark on a device:
flutter drive --profile test_driver/scroll_perf.dart
Results should be in the file build/platform_views_scroll_perf_hybrid_composition.timeline_summary.json.
More detailed logs should be in build/platform_views_scroll_perf_hybrid_composition.timeline.json.
Startup benchmark
To measure startup time on a device:
flutter run --profile --trace-startup
Results should be in the logs.
Additional results should be in the file build/start_up_info.json.