[devicelab] Add hot reload tests to presubmit (#93684)

.ci.yaml

@@ -1705,12 +1705,13 @@ targets:
 
   - name: Linux_android hot_mode_dev_cycle_linux__benchmark
     recipe: devicelab/devicelab_drone
-    presubmit: false
     timeout: 60
     properties:
       tags: >
         ["devicelab","android","linux"]
       task_name: hot_mode_dev_cycle_linux__benchmark
+    runIf:
+      - dev/**
     scheduler: luci
 
   - name: Linux_android image_list_jit_reported_duration
@@ -3168,12 +3169,13 @@ targets:
 
   - name: Mac_ios hot_mode_dev_cycle_macos_target__benchmark
     recipe: devicelab/devicelab_drone
-    presubmit: false
     timeout: 60
     properties:
       tags: >
         ["devicelab","ios","mac"]
       task_name: hot_mode_dev_cycle_macos_target__benchmark
+    runIf:
+      - dev/**
     scheduler: luci
 
   - name: Mac_ios integration_test_test_ios

dev/devicelab/README.md

@@ -206,27 +206,14 @@ There are several PRs needed to add a DeviceLab task to CI.
 _TASK_- the name of your test that also matches the name of the
   file in `bin/tasks` without the `.dart` extension.
 
-1. Add prod builder to [flutter/infra devicelab_config.star](https://github.com/flutter/infra/blob/master/config/devicelab_config.star)
-  - Example PR: https://github.com/flutter/infra/pull/401/files
-  - This will need to soak for 15 minutes after merged to propagate (should show up in [LUCI console](https://ci.chromium.org/p/flutter/g/devicelab/console))
-  - There are various lists for the different testbeds a test can run on
-2. Add task to [flutter/flutter prod_builders.json](https://github.com/flutter/flutter/blob/master/dev/prod_builders.json)
-  - Example PR: https://github.com/flutter/flutter/pull/79913/files
-  - Set `flaky: true` for validation before blocking tree
-3. After 10 green runs, update [flutter/flutter prod_builders.json](https://github.com/flutter/flutter/blob/master/dev/prod_builders.json) to `flaky:false`
-
-If your test needs to run on multiple operating systems, create a separate test
-for each operating system.
+1. Add target to
+   [.ci.yaml](https://github.com/flutter/flutter/blob/master/.ci.yaml)
+   - Mirror an existing one that has the recipe `devicelab_drone`
 
-## Adding tests to presubmit
-
-Flutter's DeviceLab does not currently have capacity to run tests against physical devices in presubmit.
+If your test needs to run on multiple operating systems, create a separate
+target for each operating system.
 
-Note that DeviceLab tests should generally require a tethered device. If you are adding host-only tests, considering adding your test to `packages/flutter_tools/test/integration.shard`.  Example: https://github.com/flutter/flutter/pull/73577/files"
+## Adding tests to presubmit
 
-1. Add try builder to [flutter/infra devicelab_config.star](https://github.com/flutter/infra/blob/master/config/devicelab_config.star)
-  - Example PR: https://github.com/flutter/infra/pull/401/files
-  - This will need to soak for 15 minutes after merged to propagate
-  - There are various lists for the different testbeds a test can run on
-2. Add task to [flutter/flutter try_builders.json](https://github.com/flutter/flutter/blob/master/dev/try_builders.json)
-  - Example PR: https://github.com/flutter/flutter/pull/79913/files
+Flutter's DeviceLab has a limited capacity in presubmit. File an infra ticket
+to investigate feasibility of adding a test to presubmit.