Add option to stream logs to file for flutter logs and way to use it in devicelab runs (#84008)

dev/devicelab/bin/tasks/android_defines_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/android_semantics_integration_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/android_stack_size_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/android_view_scroll_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/animated_image_gc_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/animated_placeholder_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/animation_with_microtasks_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/backdrop_filter_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/backdrop_filter_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/backdrop_filter_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/basic_material_app_android__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/basic_material_app_ios__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/basic_material_app_win__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/build_mode_test.dart

@@ -9,7 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/channels_integration_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/channels_integration_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/channels_integration_test_win.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/codegen_integration_linux.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';

dev/devicelab/bin/tasks/codegen_integration_mac.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';

dev/devicelab/bin/tasks/codegen_integration_win.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';

dev/devicelab/bin/tasks/color_filter_and_fade_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/color_filter_and_fade_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_android__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_android__scroll_smoothness.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_ios__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_ios__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_scroll_perf__devtools_memory.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/complex_layout_scroll_perf__memory.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/complex_layout_scroll_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_scroll_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/complex_layout_semantics_perf.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';

dev/devicelab/bin/tasks/complex_layout_win__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cubic_bezier_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cubic_bezier_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cubic_bezier_perf_sksl_warmup__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cubic_bezier_perf_sksl_warmup__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cull_opacity_perf__e2e_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/cull_opacity_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/devtools_profile_start_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/drive_perf_debug_warning.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';

dev/devicelab/bin/tasks/embedded_android_views_integration_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/external_ui_integration_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/external_ui_integration_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/fading_child_animation_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/fast_scroll_heavy_gridview__memory.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/fast_scroll_large_images__memory.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/flavors_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/flavors_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/flavors_test_win.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/flutter_attach_test_fuchsia.dart

@@ -10,7 +10,7 @@ import 'dart:io';
 import 'dart:math';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/flutter_engine_group_performance.dart

@@ -7,7 +7,7 @@
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart' as utils;

dev/devicelab/bin/tasks/flutter_gallery__back_button_memory.dart

@@ -7,7 +7,7 @@
 /// Measure application memory usage after pausing and resuming the app
 /// with the Android back button.
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/flutter_gallery__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf_e2e.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf_e2e_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf_e2e_ios32.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf_hybrid.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery__transition_perf_with_semantics.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';

dev/devicelab/bin/tasks/flutter_gallery_android__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_instrumentation_test.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/flutter_gallery_ios__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_ios__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_ios__transition_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/gallery.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_sksl_warmup__transition_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_sksl_warmup__transition_perf_e2e.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_gallery_win__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_run_test.dart

@@ -9,7 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/flutter_view__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/flutter_view_ios__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/frame_policy_delay_test_android.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/fullscreen_textfield_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/fullscreen_textfield_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/fullscreen_textfield_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/hello_world_android__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/hello_world_ios__compile.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/home_scroll_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/hybrid_android_views_integration_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/imagefiltered_transform_animation_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/integration_test_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_test_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_driver.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_ios_driver.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_ios_keyboard_resize.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_ios_screenshot.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_ios_textfield.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_keyboard_resize.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_screenshot.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/integration_ui_textfield.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/ios_defines_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/ios_platform_view_tests.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/large_image_changer_perf_android.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/large_image_changer_perf_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/microbenchmarks.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/microbenchmarks.dart';
 

dev/devicelab/bin/tasks/microbenchmarks_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/microbenchmarks.dart';
 

dev/devicelab/bin/tasks/multi_widget_construction_perf__e2e_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/native_ui_tests_ios32.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';

dev/devicelab/bin/tasks/new_gallery__crane_perf.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/new_gallery.dart';

dev/devicelab/bin/tasks/new_gallery__transition_perf.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/new_gallery.dart';

dev/devicelab/bin/tasks/new_gallery_ios__transition_perf.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/new_gallery.dart';

dev/devicelab/bin/tasks/picture_cache_perf__e2e_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/picture_cache_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/platform_channel_sample_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/platform_channel_sample_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/platform_channel_sample_test_swift.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/platform_channels_benchmarks.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart'
+import 'package:flutter_devicelab/framework/devices.dart'
     show DeviceOperatingSystem;
 import 'package:flutter_devicelab/framework/framework.dart' show task;
 import 'package:flutter_devicelab/tasks/platform_channels_benchmarks.dart'

dev/devicelab/bin/tasks/platform_channels_benchmarks_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart'
+import 'package:flutter_devicelab/framework/devices.dart'
     show DeviceOperatingSystem;
 import 'package:flutter_devicelab/framework/framework.dart' show task;
 import 'package:flutter_devicelab/tasks/platform_channels_benchmarks.dart'

dev/devicelab/bin/tasks/platform_interaction_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/platform_interaction_test_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/integration_tests.dart';
 

dev/devicelab/bin/tasks/platform_view__start_up.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/platform_view_ios__start_up.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';

dev/devicelab/bin/tasks/platform_views_scroll_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/platform_views_scroll_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/post_backdrop_filter_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/routing_test.dart

@@ -9,7 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';

dev/devicelab/bin/tasks/run_release_test.dart

@@ -9,7 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/service_extensions_test.dart

@@ -9,7 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';

dev/devicelab/bin/tasks/simple_animation_perf_ios.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/smoke_catalina_hot_mode_dev_cycle_ios__benchmark.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/hot_mode_tests.dart';
 

dev/devicelab/bin/tasks/smoke_test_build_test.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/tasks/build_test_task.dart';

dev/devicelab/bin/tasks/smoke_test_device.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 

dev/devicelab/bin/tasks/textfield_perf.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/textfield_perf__e2e_summary.dart

@@ -6,7 +6,7 @@
 
 import 'dart:async';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/textfield_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/tiles_scroll_perf__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/tiles_scroll_perf_ios__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/bin/tasks/tiles_scroll_perf_iphonexs__timeline_summary.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/tasks/perf_tests.dart';
 

dev/devicelab/lib/framework/adb.dart → dev/devicelab/lib/framework/devices.dart

@@ -152,6 +152,23 @@ abstract class Device {
   /// with some prefix.
   Stream<String> get logcat;
 
+  /// Whether this device supports calls to [startLoggingToSink]
+  /// and [stopLoggingToSink].
+  bool get canStreamLogs => false;
+
+  /// Starts logging to an [IOSink].
+  ///
+  /// If `clear` is set to true, the log will be cleared before starting. This
+  /// is not supported on all platforms.
+  Future<void> startLoggingToSink(IOSink sink, {bool clear = true}) {
+    throw UnimplementedError();
+  }
+
+  /// Stops logging that was started by [startLoggingToSink].
+  Future<void> stopLoggingToSink() {
+    throw UnimplementedError();
+  }
+
   /// Stop a process.
   Future<void> stop(String packageName);
 
@@ -558,6 +575,52 @@ class AndroidDevice extends Device {
     };
   }
 
+  @override
+  bool get canStreamLogs => true;
+
+  bool _abortedLogging/*!*/ = false;
+  Process/*?*/ _loggingProcess;
+
+  @override
+  Future<void> startLoggingToSink(IOSink sink, {bool clear = true}) async {
+    if (clear) {
+      await adb(<String>['logcat', '--clear'], silent: true);
+    }
+    _loggingProcess = await startProcess(
+      adbPath,
+      // Make logcat less chatty by filtering down to just ActivityManager
+      // (to let us know when app starts), flutter (needed by tests to see
+      // log output), and fatal messages (hopefully catches tombstones).
+      // For local testing, this can just be:
+      //   <String>['-s', deviceId, 'logcat']
+      // to view the whole log, or just run logcat alongside this.
+      <String>['-s', deviceId, 'logcat', 'ActivityManager:I', 'flutter:V', '*:F'],
+    );
+    _loggingProcess.stdout
+      .transform<String>(const Utf8Decoder(allowMalformed: true))
+      .listen((String line) {
+        sink.write(line);
+      });
+    _loggingProcess.stderr
+      .transform<String>(const Utf8Decoder(allowMalformed: true))
+      .listen((String line) {
+        sink.write(line);
+      });
+    unawaited(_loggingProcess.exitCode.then<void>((int exitCode) {
+      if (!_abortedLogging) {
+        sink.writeln('adb logcat failed with exit code $exitCode.\n');
+      }
+    }));
+  }
+
+  @override
+  Future<void> stopLoggingToSink() async {
+    assert(_loggingProcess != null);
+    _abortedLogging = true;
+    _loggingProcess.kill();
+    await _loggingProcess.exitCode;
+  }
+
   @override
   Stream<String> get logcat {
     final Completer<void> stdoutDone = Completer<void>();
@@ -760,11 +823,66 @@ class IosDeviceDiscovery implements DeviceDiscovery {
 
 /// iOS device.
 class IosDevice extends Device {
-  const IosDevice({ @required this.deviceId });
+  IosDevice({ @required this.deviceId });
 
   @override
   final String deviceId;
 
+  String get idevicesyslogPath {
+    return path.join(flutterDirectory.path, 'bin', 'cache', 'artifacts', 'libimobiledevice', 'idevicesyslog');
+  }
+
+  String get dyldLibraryPath {
+    final List<String> dylibsPaths = <String>[
+      path.join(flutterDirectory.path, 'bin', 'cache', 'artifacts', 'libimobiledevice'),
+      path.join(flutterDirectory.path, 'bin', 'cache', 'artifacts', 'openssl'),
+      path.join(flutterDirectory.path, 'bin', 'cache', 'artifacts', 'usbmuxd'),
+      path.join(flutterDirectory.path, 'bin', 'cache', 'artifacts', 'libplist'),
+    ];
+    return dylibsPaths.join(':');
+  }
+
+  @override
+  bool get canStreamLogs => true;
+
+  bool _abortedLogging/*!*/ = false;
+  Process/*?*/ _loggingProcess;
+
+  @override
+  Future<void> startLoggingToSink(IOSink sink, {bool clear = true}) async {
+    // Clear is not supported.
+    _loggingProcess = await startProcess(
+      idevicesyslogPath,
+      <String>['-u', deviceId, '--quiet'],
+      environment: <String, String>{
+        'DYLD_LIBRARY_PATH': dyldLibraryPath,
+      },
+    );
+    _loggingProcess.stdout
+      .transform<String>(const Utf8Decoder(allowMalformed: true))
+      .listen((String line) {
+        sink.write(line);
+      });
+    _loggingProcess.stderr
+      .transform<String>(const Utf8Decoder(allowMalformed: true))
+      .listen((String line) {
+        sink.write(line);
+      });
+    unawaited(_loggingProcess.exitCode.then<void>((int exitCode) {
+      if (!_abortedLogging) {
+        sink.writeln('idevicesyslog failed with exit code $exitCode.\n');
+      }
+    }));
+  }
+
+  @override
+  Future<void> stopLoggingToSink() async {
+    assert(_loggingProcess != null);
+    _abortedLogging = true;
+    _loggingProcess.kill();
+    await _loggingProcess.exitCode;
+  }
+
   // The methods below are stubs for now. They will need to be expanded.
   // We currently do not have a way to lock/unlock iOS devices. So we assume the
   // devices are already unlocked. For now we'll just keep them at minimum

dev/devicelab/lib/framework/framework.dart

@@ -14,7 +14,8 @@ import 'package:logging/logging.dart';
 import 'package:path/path.dart' as path;
 import 'package:stack_trace/stack_trace.dart';
 
-import 'adb.dart';
+import 'devices.dart';
+import 'host_agent.dart';
 import 'running_processes.dart';
 import 'task_result.dart';
 import 'utils.dart';
@@ -81,6 +82,14 @@ class _TaskRunner {
 
   final TaskFunction task;
 
+  Future<Device/*?*/> _getWorkingDeviceIfAvailable() async {
+    try {
+      return await devices.workingDevice;
+    } on DeviceException {
+      return null;
+    }
+  }
+
   // TODO(ianh): workaround for https://github.com/dart-lang/sdk/issues/23797
   RawReceivePort _keepAlivePort;
   Timer _startTaskTimeout;
@@ -136,11 +145,27 @@ class _TaskRunner {
         print('Skipping enabling configs for macOS, Linux, Windows, and Web');
       }
 
-      Future<TaskResult> futureResult = _performTask();
-      if (taskTimeout != null)
-        futureResult = futureResult.timeout(taskTimeout);
+      final Device/*?*/ device = await _getWorkingDeviceIfAvailable();
+      /*late*/ TaskResult result;
+      IOSink/*?*/ sink;
+      try {
+        if (device != null && device.canStreamLogs && hostAgent.dumpDirectory != null) {
+          sink = File(path.join(hostAgent.dumpDirectory.path, '${device.deviceId}.log')).openWrite();
+          await device.startLoggingToSink(sink);
+        }
+
+        Future<TaskResult> futureResult = _performTask();
+        if (taskTimeout != null)
+          futureResult = futureResult.timeout(taskTimeout);
 
-      TaskResult result = await futureResult;
+        result = await futureResult;
+      } finally {
+        if (device != null && device.canStreamLogs) {
+          assert(sink != null);
+          await device.stopLoggingToSink();
+          await sink.close();
+        }
+      }
 
       if (runProcessCleanup) {
         section('Checking running Dart$exe processes after task...');

dev/devicelab/lib/framework/host_agent.dart

@@ -22,14 +22,11 @@ class HostAgent {
   final FileSystem _fileSystem;
 
   /// Creates a directory to dump file artifacts.
-  Directory get dumpDirectory {
+  Directory/*?*/ get dumpDirectory {
     if (_dumpDirectory == null) {
       // Set in LUCI recipe.
       final String directoryPath = _platform.environment['FLUTTER_LOGS_DIR'];
-      if (directoryPath == null) {
-        _dumpDirectory = _fileSystem.systemTempDirectory.createTempSync('flutter_test_logs.');
-        print('Created tmp dump directory ${_dumpDirectory.path}');
-      } else {
+      if (directoryPath != null) {
         _dumpDirectory = _fileSystem.directory(directoryPath)..createSync(recursive: true);
         print('Found FLUTTER_LOGS_DIR dump directory ${_dumpDirectory.path}');
       }
@@ -37,7 +34,7 @@ class HostAgent {
     return _dumpDirectory;
   }
 
-  static Directory _dumpDirectory;
+  static Directory/*?*/ _dumpDirectory;
 
   @visibleForTesting
   void resetDumpDirectory() {

dev/devicelab/lib/framework/runner.dart

@@ -12,8 +12,8 @@ import 'package:flutter_devicelab/common.dart';
 import 'package:meta/meta.dart';
 import 'package:vm_service/vm_service.dart';
 
-import 'adb.dart';
 import 'cocoon.dart';
+import 'devices.dart';
 import 'task_result.dart';
 import 'utils.dart';
 

dev/devicelab/lib/framework/utils.dart

@@ -10,7 +10,7 @@ import 'dart:io';
 import 'dart:math' as math;
 
 import 'package:flutter_devicelab/common.dart';
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:meta/meta.dart';
 import 'package:path/path.dart' as path;
 import 'package:process/process.dart';
@@ -471,6 +471,18 @@ Future<int> flutter(String command, {
     canFail: canFail, environment: environment);
 }
 
+Future<Process> startFlutter(String command, {
+  List<String> options = const <String>[],
+  Map<String, String> environment = const <String, String>{},
+}) {
+  final List<String> args = flutterCommandArgs(command, options);
+  return startProcess(
+    path.join(flutterDirectory.path, 'bin', 'flutter'),
+    args,
+    environment: environment,
+  );
+}
+
 /// Runs a `flutter` command and returns the standard output as a string.
 Future<String> evalFlutter(String command, {
   List<String> options = const <String>[],

dev/devicelab/lib/microbenchmarks.dart

@@ -8,19 +8,6 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/utils.dart';
-import 'package:path/path.dart' as path;
-
-/// Launches a new Flutter process.
-Future<Process> startFlutter({
-  List<String> options = const <String>[],
-  bool canFail = false,
-  Map<String, String> environment,
-}) {
-  final List<String> args = flutterCommandArgs('run', options);
-  return startProcess(path.join(flutterDirectory.path, 'bin', 'flutter'), args, environment: environment);
-}
-
 /// Reades through the print commands from [process] waiting for the magic phase
 /// that contains microbenchmarks results as defined in
 /// `dev/benchmarks/microbenchmarks/lib/common.dart`.

dev/devicelab/lib/tasks/build_test_task.dart

@@ -9,7 +9,7 @@ import 'dart:io';
 import 'package:args/args.dart';
 import 'package:flutter_devicelab/common.dart';
 
-import '../framework/adb.dart';
+import '../framework/devices.dart';
 import '../framework/task_result.dart';
 import '../framework/utils.dart';
 

dev/devicelab/lib/tasks/gallery.dart

@@ -8,7 +8,7 @@ import 'dart:convert';
 import 'dart:io';
 import 'dart:math' as math;
 
-import '../framework/adb.dart';
+import '../framework/devices.dart';
 import '../framework/framework.dart';
 import '../framework/host_agent.dart';
 import '../framework/task_result.dart';

dev/devicelab/lib/tasks/hot_mode_tests.dart

@@ -10,7 +10,7 @@ import 'dart:io';
 
 import 'package:path/path.dart' as path;
 
-import '../framework/adb.dart';
+import '../framework/devices.dart';
 import '../framework/framework.dart';
 import '../framework/task_result.dart';
 import '../framework/utils.dart';

dev/devicelab/lib/tasks/integration_tests.dart

@@ -4,7 +4,7 @@
 
 // @dart = 2.8
 
-import '../framework/adb.dart';
+import '../framework/devices.dart';
 import '../framework/framework.dart';
 import '../framework/host_agent.dart';
 import '../framework/task_result.dart';

dev/devicelab/lib/tasks/microbenchmarks.dart

@@ -7,7 +7,7 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
 import 'package:flutter_devicelab/framework/utils.dart';
@@ -37,8 +37,8 @@ TaskFunction createMicrobenchmarkTask() {
           ];
           options.add(benchmarkPath);
           return startFlutter(
+            'run',
             options: options,
-            canFail: false,
           );
         });
 

dev/devicelab/lib/tasks/perf_tests.dart

@@ -9,7 +9,7 @@ import 'dart:convert' show LineSplitter, json, utf8;
 import 'dart:io';
 import 'dart:math' as math;
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/host_agent.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';

dev/devicelab/lib/tasks/platform_channels_benchmarks.dart

@@ -6,7 +6,7 @@
 
 import 'dart:io' show Process, Directory;
 
-import 'package:flutter_devicelab/framework/adb.dart' as adb;
+import 'package:flutter_devicelab/framework/devices.dart' as adb;
 import 'package:flutter_devicelab/framework/framework.dart' show TaskFunction;
 import 'package:flutter_devicelab/framework/task_result.dart' show TaskResult;
 import 'package:flutter_devicelab/framework/utils.dart' as utils;
@@ -43,9 +43,9 @@ TaskFunction runTask(adb.DeviceOperatingSystem operatingSystem) {
         '-d',
         device.deviceId,
       ];
-      return microbenchmarks.startFlutter(
+      return utils.startFlutter(
+        'run',
         options: options,
-        canFail: false,
       );
     });
 

dev/devicelab/test/adb_test.dart

@@ -6,7 +6,7 @@
 
 import 'package:collection/collection.dart' show ListEquality, MapEquality;
 
-import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/devices.dart';
 import 'package:meta/meta.dart';
 
 import 'common.dart';

dev/devicelab/test/host_agent_test.dart

@@ -39,15 +39,7 @@ void main() {
       final FakePlatform fakePlatform = FakePlatform(environment: <String, String>{}, operatingSystem: 'windows');
       final HostAgent agent = HostAgent(platform: fakePlatform, fileSystem: fs);
 
-      expect(agent.dumpDirectory.existsSync(), isTrue);
-    });
-
-    test('is the same between host agent instances', () async {
-      final FakePlatform fakePlatform = FakePlatform(environment: <String, String>{}, operatingSystem: 'windows');
-      final HostAgent agent1 = HostAgent(platform: fakePlatform, fileSystem: fs);
-      final HostAgent agent2 = HostAgent(platform: fakePlatform, fileSystem: fs);
-
-      expect(agent1.dumpDirectory.path, agent2.dumpDirectory.path);
+      expect(agent.dumpDirectory, null);
     });
   });
 }