chromium.compile: set cwd to checkout for TARGET_CROS_BOARD builds

scripts/slave/recipe_modules/chromium/api.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.
 
 import re
 
 from recipe_engine import recipe_api
 from recipe_engine import util as recipe_util
 
 class TestLauncherFilterFileInputPlaceholder(recipe_util.InputPlaceholder):
@@ skipping 206 matching lines @@
       args.append('--ninja-ensure-up-to-date')
     if self.c.TARGET_CROS_BOARD:
       args += ['--cros-board', self.c.TARGET_CROS_BOARD]
 
     args.append('--')
     args.extend(targets)
 
     if self.c.TARGET_CROS_BOARD:
       # Wrap 'compile' through 'cros chrome-sdk'
       kwargs['wrapper'] = self.get_cros_chrome_sdk_wrapper()
+      kwargs.setdefault('cwd', self.m.path['checkout'])
 
     env = self.get_env()
     env.update(kwargs.pop('env', {}))
 
     try:
       self.m.python(
           name or 'compile',
           self.package_repo_resource('scripts', 'tools', 'runit.py'),
           args,
           env=env,
@@ skipping 540 matching lines @@
       }))
 
   def get_annotate_by_test_name(self, test_name):
     return 'graphing'
 
   def download_lto_plugin(self):
     return self.m.python(
         name='download LTO plugin',
         script=self.m.path['checkout'].join(
             'build', 'download_gold_plugin.py'))