Added swarming step to the Blink trybots

scripts/slave/recipes/blink_trybot.py

Index: scripts/slave/recipes/blink_trybot.py
diff --git a/scripts/slave/recipes/blink_trybot.py b/scripts/slave/recipes/blink_trybot.py
index 9e8d6e06a268c2bc06328a972e69447b87733885..1ed8e07ed73fd1ab5d200052cab5e3557186613d 100644
--- a/scripts/slave/recipes/blink_trybot.py
+++ b/scripts/slave/recipes/blink_trybot.py
@@ -5,7 +5,9 @@
 DEPS = [
   'bot_update',
   'chromium',
+  'chromium_tests',
   'gclient',
+  'isolate',
   'json',
   'path',
   'platform',
@@ -14,6 +16,7 @@ DEPS = [
   'raw_io',
   'rietveld',
   'step',
+  'swarming',
   'test_utils',
 ]
 
@@ -271,10 +274,25 @@ def GenSteps(api):
   bot_update_step = api.bot_update.ensure_checkout(
       force=True, patch_root=bot_config.get('root_override'))
 
-  api.chromium.runhooks()
-  api.chromium.compile()
+  if bot_config['compile_only']:
+    api.chromium.runhooks()
+    api.chromium.compile()
+  else:
+    api.chromium_tests.configure_swarming('blink')
+
+    # Swarming uses Isolate to transfer files to swarming bots.
+    # set_isolate_environment modifies GYP_DEFINES to enable test isolation.
+    api.isolate.set_isolate_environment(api.chromium.c)
+
+    # Ensure swarming_client is compatible with what recipes expect.
+    api.swarming.check_client_version()
+
+    api.chromium.runhooks()
+
+    api.isolate.clean_isolated_files(api.chromium.output_dir)
+    api.chromium.compile()
+    api.isolate.find_isolated_tests(api.chromium.output_dir)
 
-  if not bot_config['compile_only']:
     api.python('webkit_lint', webkit_lint, [
       '--build-dir', api.path['checkout'].join('out'),
       '--target', api.chromium.c.BUILD_CONFIG
@@ -317,7 +335,6 @@ def GenSteps(api):
         "import sys; sys.exit(1)")
       raise exception
 
-  if not bot_config['compile_only']:
     def deapply_patch_fn(_failing_steps):
       bot_update_json = bot_update_step.json.output
       api.gclient.c.revisions['src'] = str(
@@ -327,7 +344,9 @@ def GenSteps(api):
 
       api.bot_update.ensure_checkout(patch=False, force=True)
       api.chromium.runhooks()
+      api.isolate.clean_isolated_files(api.chromium.output_dir)
       api.chromium.compile()
+      api.isolate.find_isolated_tests(api.chromium.output_dir)
 
     api.test_utils.determine_new_failures(
         api, [api.chromium.steps.BlinkTest(api)], deapply_patch_fn)
@@ -368,7 +387,8 @@ def GenTests(api):
 
       for test in tests:
         test += (
-          properties(mastername, buildername) +
+          properties(mastername, buildername,
+                     blamelist_real=['someone@chromium.org']) +
           api.platform(bot_config['testing']['platform'],
                        bot_config.get(
                            'chromium_config_kwargs', {}).get('TARGET_BITS', 64))
@@ -438,3 +458,10 @@ def GenTests(api):
     api.override_step_data(without_patch,
                            canned_test(passing=True, minimal=True))
   )
+
+  yield (
+    api.test('non_cq_tryjob') +
+    properties('tryserver.blink', 'win_blink_rel',
+               requester='someone@chromium.org') +
+    api.step_data(with_patch, canned_test(passing=True))
+  )