[Android] Switch to DeviceUtils versions of GetPid, TakeScreenshot, and GetIoStats.

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 35 matching lines @@
       self._args += ['--size', '%dx%d' % size]
     if rotate:
       self._args += ['--rotate']
     self._args += [self._device_file]
 
   def Start(self):
     """Start recording video."""
     self._recorder_stdout = tempfile.mkstemp()[1]
     self._recorder = cmd_helper.Popen(
         self._args, stdout=open(self._recorder_stdout, 'w'))
-    self._recorder_pids = self._device.old_interface.ExtractPid('screenrecord')
+    self._recorder_pids = self._device.GetPid('screenrecord')
     if not self._recorder_pids:
       raise RuntimeError('Recording failed. Is your device running Android '
                          'KitKat or later?')
 
   def IsStarted(self):
     if not self._is_started:
       for line in open(self._recorder_stdout):
         self._is_started = line.startswith('Content area is ')
         if self._is_started:
           break
@@ skipping 14 matching lines @@
 
     Args:
       host_file: Path to the video file to store on the host.
     """
     host_file_name = host_file or ('screen-recording-%s.mp4' %
                                    self._device.old_interface.GetTimestamp())
     host_file = os.path.abspath(host_file_name)
     self._device.old_interface.EnsureHostDirectory(self._host_file)
     self._device.PullFile(self._device_file, host_file_name)
     self._device.RunShellCommand('rm -f "%s"' % self._device_file)