Reland "Skia: Maintain a checkout on swarming (compile) bots"

scripts/slave/recipes/skia/swarm_trigger.py

 # Copyright 2016 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.
 
 
 # Recipe module for Skia Swarming trigger.
 
 
 import json
 
@@ skipping 179 matching lines @@
 
 
 def checkout_steps(api):
   """Run the steps to obtain a checkout of Skia."""
   gclient_cfg = api.gclient.make_config(CACHE_DIR=None)
   skia = gclient_cfg.solutions.add()
   skia.name = 'skia'
   skia.managed = False
   skia.url = 'https://skia.googlesource.com/skia.git'
   skia.revision = api.properties.get('revision') or 'origin/master'
-  api.skia.update_repo(skia)
+  api.skia.update_repo(api.path['slave_build'], skia)
 
   # Run 'gclient sync'.
   gclient_cfg.got_revision_mapping['skia'] = 'got_revision'
   gclient_cfg.target_os.add('llvm')
   update_step = api.gclient.checkout(gclient_config=gclient_cfg)
 
   got_revision = update_step.presentation.properties['got_revision']
   api.tryserver.maybe_apply_issue()
   return got_revision
 
@@ skipping 332 matching lines @@
   builder = 'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-Swarming'
   master = 'client.skia'
   slave = 'skiabot-linux-test-000'
   test = test_for_bot(api, builder, master, slave, 'No_downloaded_SKP_VERSION')
   test += api.step_data('Get downloaded SKP_VERSION', retcode=1)
   test += api.path.exists(
       api.path['slave_build'].join('skia'),
       api.path['slave_build'].join('tmp', 'uninteresting_hashes.txt')
   )
   yield test