anchor.diff:    ).run;
   }
   
  -TaskFunction createSimpleAnimationPerfTest({bool measureCpuGpu = false}) {
  +TaskFunction createSimpleAnimationPerfTest({bool measureCpuGpu = true}) {
     return PerfTest(
       '${flutterDirectory.path}/dev/benchmarks/macrobenchmarks',
       'test_driver/run_app.dart',
  
positive.code:     this.testDirectory,
      this.testTarget,
      this.timelineFileName, {
      this.measureCpuGpu = false,
      this.measureMemory = false,
      this.saveTraceFile = false,
      this.testDriver,
  
negative.code: import 'package:flutter_devicelab/framework/utils.dart';
  import 'package:flutter_devicelab/tasks/track_widget_creation_enabled_task.dart';
  
  TaskFunction createComplexLayoutScrollPerfTest({bool measureCpuGpu = true}) {
    return PerfTest(
      '${flutterDirectory.path}/dev/benchmarks/complex_layout',
      'test_driver/scroll_perf.dart',
  