Android: uses taskset when starting adb.

build/android/buildbot/bb_device_steps.py

 #!/usr/bin/env python
 # Copyright (c) 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 collections
 import glob
 import multiprocessing
 import os
 import shutil
@@ skipping 219 matching lines @@
 def SpawnLogcatMonitor():
   shutil.rmtree(LOGCAT_DIR, ignore_errors=True)
   bb_utils.SpawnCmd([
       os.path.join(CHROME_SRC, 'build', 'android', 'adb_logcat_monitor.py'),
       LOGCAT_DIR])
 
   # Wait for logcat_monitor to pull existing logcat
   RunCmd(['sleep', '5'])
 
 def ProvisionDevices(options):
-  # Restart adb to work around bugs, sleep to wait for usb discovery.
-  RunCmd(['adb', 'kill-server'])
-  RunCmd(['adb', 'start-server'])
-  RunCmd(['sleep', '1'])
+  bb_annotations.PrintNamedStep('provision_devices')
 
-  bb_annotations.PrintNamedStep('provision_devices')
+  if not bb_utils.TESTING:
+    # Restart adb to work around bugs, sleep to wait for usb discovery.
+    adb = android_commands.AndroidCommands()
+    adb.RestartAdbServer()
+    RunCmd(['sleep', '1'])
+
   if options.reboot:
     RebootDevices()
   provision_cmd = ['build/android/provision_devices.py', '-t', options.target]
   if options.auto_reconnect:
     provision_cmd.append('--auto-reconnect')
   RunCmd(provision_cmd)
 
 
 def DeviceStatusCheck(_):
   bb_annotations.PrintNamedStep('device_status_check')
@@ skipping 122 matching lines @@
   if unknown_tests:
     return sys.exit('Unknown tests %s' % list(unknown_tests))
 
   setattr(options, 'target', options.factory_properties.get('target', 'Debug'))
 
   MainTestWrapper(options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))