Enable isolate on Linux release builder.

scripts/slave/recipes/chromium.expected/dynamic_swarmed_gtest.json

Index: scripts/slave/recipes/chromium.expected/dynamic_swarmed_gtest.json
diff --git a/scripts/slave/recipes/chromium.expected/dynamic_gtest_on_builder.json b/scripts/slave/recipes/chromium.expected/dynamic_swarmed_gtest.json
similarity index 84%
copy from scripts/slave/recipes/chromium.expected/dynamic_gtest_on_builder.json
copy to scripts/slave/recipes/chromium.expected/dynamic_swarmed_gtest.json
index d84bc0fb1e2e62ee1762f954053e97590ee1621c..b1ad93e68de63cbd6771d966fe33a5a9adbf7e02 100644
--- a/scripts/slave/recipes/chromium.expected/dynamic_gtest_on_builder.json
+++ b/scripts/slave/recipes/chromium.expected/dynamic_swarmed_gtest.json
@@ -62,11 +62,24 @@
     "cmd": [
       "python",
       "-u",
+      "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
+      "--version"
+    ],
+    "name": "swarming.py --version",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_TEXT@0.4.10@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
     "env": {
-      "GYP_DEFINES": "component=static_library gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
+      "GYP_DEFINES": "component=static_library gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=archive test_isolation_outdir=https://isolateserver.appspot.com use_goma=1"
     },
     "name": "gclient runhooks"
   },
@@ -84,11 +97,11 @@
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"Linux Tests\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"gtest_tests\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"base_unittests\", @@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"shard_index\": 0, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"test\": \"browser_tests\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"total_shards\": 2@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"swarming\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@          \"can_use_on_swarming_builders\": true@@@",
+      "@@@STEP_LOG_LINE@json.output@        }, @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"test\": \"browser_tests\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
@@ -120,8 +133,7 @@
       "--goma-dir",
       "[BUILD]/goma",
       "--",
-      "base_unittests",
-      "browser_tests",
+      "browser_tests_run",
       "chrome",
       "chromium_swarm_tests",
       "mojo_public_test_interfaces",
@@ -147,6 +159,25 @@
     "cmd": [
       "python",
       "-u",
+      "[BUILD]/scripts/slave/recipe_modules/isolate/resources/find_isolated_tests.py",
+      "--build-dir",
+      "[SLAVE_BUILD]/src/out/Release",
+      "--output-json",
+      "/path/to/tmp/json"
+    ],
+    "name": "find isolated tests",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"browser_tests\": \"[dummy hash for browser_tests]\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@SET_BUILD_PROPERTY@swarm_hashes@{\"browser_tests\": \"[dummy hash for browser_tests]\"}@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[BUILD]/scripts/slave/archive_dependencies.py",
       "--src-dir",
       "[SLAVE_BUILD]/src",