Enable isolate on Linux release builder.

scripts/slave/recipes/chromium.py

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 DEPS = [
   'chromium',
   'chromium_android',
   'chromium_tests',
   'isolate',
   'json',
@@ skipping 100 matching lines @@
       'Linux Tests': {
         'gtest_tests': [
           'base_unittests',
           {'test': 'browser_tests', 'shard_index': 0, 'total_shards': 2},
         ],
       },
     }))
   )
 
   yield (
+    api.test('dynamic_swarmed_gtest') +
+    api.properties.generic(mastername='chromium.linux',
+                           buildername='Linux Builder') +
+    api.platform('linux', 64) +
+    api.override_step_data('read test spec', api.json.output({
+      'Linux Tests': {
+        'gtest_tests': [
+          {'test': 'browser_tests',
+           'swarming': {'can_use_on_swarming_builders': True } },
+        ],
+      },
+    }))
+  )
+
+  yield (
     api.test('dynamic_gtest_on_builder') +
     api.properties.generic(mastername='chromium.linux',
                            buildername='Linux Builder') +
     api.platform('linux', 64) +
     api.override_step_data('read test spec', api.json.output({
       'Linux Tests': {
         'gtest_tests': [
           'base_unittests',
           {'test': 'browser_tests', 'shard_index': 0, 'total_shards': 2},
         ],
@@ skipping 168 matching lines @@
   yield (
     api.test('perf_test_profile_failure') +
     api.properties.generic(mastername='chromium.perf',
                            buildername='Linux Perf (1)',
                            parent_buildername='Linux Builder',
                            buildnumber=0) +
     api.platform('linux', 64) +
     api.override_step_data(
         'blink_perf.all.release', retcode=1)
   )