Migrate gallery tests to build+test model #103542
Description
Devicelab tests are being migrated to separate build and test steps for better bot resource usage. This bugs track how we migrate gallery tests to build+test model.
Gallery test list:
- Linux/android
flutter_gallery__transition_perf
flutter_gallery__transistion_perf_e2e
flutter_gallery__transistion_perf_hybrid
flutter_gallery__transition_perf_with_semantics
- Mac/ios
flutter_gallery__transition_perf_e2e_ios
flutter_gallery__transition_perf_e2e_impeller_ios
Context: go/devicelab-build-test