[Android] Convert to DeviceUtils versions of WaitUntilFullyBooted and GetExternalStoragePath.

build/android/pylib/screenshot.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 os
 import tempfile
 
 from pylib import cmd_helper
 
 # TODO(jbudorick) Remove once telemetry gets switched over.
@@ skipping 13 matching lines @@
           default.
     rotate: If True, the video will be rotated 90 degrees.
   """
   def __init__(self, device, host_file, megabits_per_second=4, size=None,
                rotate=False):
     # TODO(jbudorick) Remove once telemetry gets switched over.
     if isinstance(device, pylib.android_commands.AndroidCommands):
       device = pylib.device.device_utils.DeviceUtils(device)
     self._device = device
     self._device_file = (
-        '%s/screen-recording.mp4' % device.old_interface.GetExternalStorage())
+        '%s/screen-recording.mp4' % device.GetExternalStoragePath())
     self._host_file = host_file or ('screen-recording-%s.mp4' %
                                     device.old_interface.GetTimestamp())
     self._host_file = os.path.abspath(self._host_file)
     self._recorder = None
     self._recorder_pids = None
     self._recorder_stdout = None
     self._is_started = False
 
     self._args = ['adb']
     if self._device.old_interface.GetDevice():
@@ skipping 38 matching lines @@
   def Pull(self):
     """Pull resulting video file from the device.
 
     Returns:
       Output video file name on the host.
     """
     self._device.old_interface.PullFileFromDevice(
         self._device_file, self._host_file)
     self._device.old_interface.RunShellCommand('rm -f "%s"' % self._device_file)
     return self._host_file