[Android] Switch to DeviceUtils versions of file functions.

build/android/provision_devices.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.
 
 """Provisions Android devices with settings required for bots.
 
 Usage:
   ./provision_devices.py [-d <device serial number>]
@@ skipping 54 matching lines @@
       # running at all.
       device.KillAll('adb_reboot', blocking=True, timeout=2, retries=0)
     except device_errors.CommandFailedError:
       # We can safely ignore the exception because we don't expect adb_reboot
       # to be running.
       pass
     # Push adb_reboot
     print '  Pushing adb_reboot ...'
     adb_reboot = os.path.join(constants.DIR_SOURCE_ROOT,
                               'out/%s/adb_reboot' % target)
-    device.old_interface.PushIfNeeded(adb_reboot, '/data/local/tmp/')
+    device.PushChangedFiles(adb_reboot, '/data/local/tmp/')
     # Launch adb_reboot
     print '  Launching adb_reboot ...'
     device.old_interface.GetAndroidToolStatusAndOutput(
         '/data/local/tmp/adb_reboot')
   LaunchHostHeartbeat()
 
 
 def _ConfigureLocalProperties(device, is_perf):
   """Set standard readonly testing device properties prior to reboot."""
   local_props = [
       'ro.monkey=1',
       'ro.test_harness=1',
       'ro.audio.silent=1',
       'ro.setupwizard.mode=DISABLED',
       ]
   if not is_perf:
     local_props.append('%s=all' % android_commands.JAVA_ASSERT_PROPERTY)
     local_props.append('debug.checkjni=1')
-  device.old_interface.SetProtectedFileContents(
+  device.WriteFile(
       constants.DEVICE_LOCAL_PROPERTIES_PATH,
-      '\n'.join(local_props))
+      '\n'.join(local_props), as_root=True)
   # Android will not respect the local props file if it is world writable.
   device.RunShellCommand(
       'chmod 644 %s' % constants.DEVICE_LOCAL_PROPERTIES_PATH,
       as_root=True)
 
   # LOCAL_PROPERTIES_PATH = '/data/local.prop'
 
 
 def WipeDeviceData(device):
   """Wipes data from device, keeping only the adb_keys for authorization.
 
   After wiping data on a device that has been authorized, adb can still
   communicate with the device, but after reboot the device will need to be
   re-authorized because the adb keys file is stored in /data/misc/adb/.
   Thus, adb_keys file is rewritten so the device does not need to be
   re-authorized.
 
   Arguments:
     device: the device to wipe
   """
-  device_authorized = device.old_interface.FileExistsOnDevice(
-      constants.ADB_KEYS_FILE)
+  device_authorized = device.FileExists(constants.ADB_KEYS_FILE)
   if device_authorized:
     adb_keys = device.RunShellCommand('cat %s' % constants.ADB_KEYS_FILE,
                                       as_root=True)
   device.RunShellCommand('wipe data', as_root=True)
   if device_authorized:
     path_list = constants.ADB_KEYS_FILE.split('/')
     dir_path = '/'.join(path_list[:len(path_list)-1])
     device.RunShellCommand('mkdir -p %s' % dir_path, as_root=True)
     device.RunShellCommand('echo %s > %s' %
                            (adb_keys[0], constants.ADB_KEYS_FILE))
@@ skipping 95 matching lines @@
 
   if args:
     print >> sys.stderr, 'Unused args %s' % args
     return 1
 
   ProvisionDevices(options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))