Lacros: Run Lacros tast tests on lacros builders

This CL starts running lacros tast tests on the builder:
chromeos-amd64-generic-lacros-chrome.

Bug: 1158590
Change-Id: I2336084746548f8db6d2596ced7768c9c1088cab
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2622344Reviewed-by: Ben Pastene <bpastene@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844199}

testing/buildbot/gn_isolate_map.pyl

@@ -1103,6 +1103,20 @@
     "label": "//ash/keyboard/ui:keyboard_unittests",
     "type": "windowed_test_launcher",
   },
+  "lacros_tast_tests_amd64_generic": {
+    "label": "//chromeos/lacros:lacros_tast_tests_amd64_generic",
+    "type": "generated_script",
+    "args": [
+      "--logs-dir=${ISOLATED_OUTDIR}",
+    ],
+  },
+  "lacros_tast_tests_eve": {
+    "label": "//chromeos/lacros:lacros_tast_tests_eve",
+    "type": "generated_script",
+    "args": [
+      "--logs-dir=${ISOLATED_OUTDIR}",
+    ],
+  },
   "lacros_chrome_browsertests": {
     "label": "//chrome/test:lacros_chrome_browsertests",
     "type": "windowed_test_launcher",

testing/buildbot/internal.chromeos.fyi.json

@@ -5,6 +5,58 @@
     "additional_compile_targets": [
       "chrome"
     ],
+    "gtest_tests": [
+      {
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "resultdb": {
+          "enable": true
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "cpu": "x86",
+              "kvm": "1",
+              "os": "Ubuntu-16.04",
+              "pool": "chrome.tests"
+            }
+          ],
+          "idempotent": false,
+          "service_account": "chrome-tester@chops-service-accounts.iam.gserviceaccount.com"
+        },
+        "test": "lacros_tast_tests_amd64_generic",
+        "test_id_prefix": "ninja://chromeos/lacros:lacros_tast_tests_amd64_generic/"
+      },
+      {
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "resultdb": {
+          "enable": true
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "device_type": "eve",
+              "os": "ChromeOS",
+              "pool": "chrome.tests"
+            }
+          ],
+          "idempotent": false,
+          "service_account": "chrome-tester@chops-service-accounts.iam.gserviceaccount.com"
+        },
+        "test": "lacros_tast_tests_eve",
+        "test_id_prefix": "ninja://chromeos/lacros:lacros_tast_tests_eve/",
+        "trigger_script": {
+          "script": "//testing/trigger_scripts/chromeos_device_trigger.py"
+        }
+      }
+    ],
     "skylab_tests": [
       {
         "args": [],

testing/buildbot/test_suites.pyl

@@ -3730,6 +3730,39 @@
       }
     },
 
+    'lacros_tast_tests': {
+      'lacros_tast_tests_amd64_generic': {
+        'swarming': {
+          'idempotent': False,  # https://crbug.com/923426#c27
+          'dimension_sets': [
+            {
+              'cpu': 'x86',
+              'kvm': '1',
+              'os': 'Ubuntu-16.04',
+              'pool': 'chrome.tests',
+            }
+          ],
+        },
+        'resultdb': {
+          'enable': True,
+        },
+      },
+      'lacros_tast_tests_eve': {
+        'swarming': {
+          'idempotent': False,  # https://crbug.com/923426#c27
+          'dimension_sets': [
+            {
+              'os': 'ChromeOS',
+              'device_type': 'eve',
+            }
+          ],
+        },
+        'resultdb': {
+          'enable': True,
+        },
+      },
+    },
+
     'layout_ng_gtests': {
       'webkit_unit_tests_ng': {
         'args': [

testing/buildbot/waterfalls.pyl

@@ -6336,8 +6336,17 @@
           'chrome',
         ],
         'test_suites': {
+          'gtest_tests': 'lacros_tast_tests',
           'skylab_tests': 'cros_skylab_chrome_critical_x86_64',
         },
+        'swarming': {
+          'dimension_sets': [
+            {
+              'pool': 'chrome.tests',
+            },
+          ],
+        },
+        'os_type': 'chromeos'
       },
       'chromeos-betty-arc-r-chrome': {
         'additional_compile_targets': [