[Android] Switch to DeviceUtils version of RunShellCommand.

build/android/pylib/perf/perf_control.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 logging
 import time
 
 from pylib import android_commands
 from pylib.device import device_utils
 
@@ skipping 55 matching lines @@
     cores under system power management control. This is needed to work around
     a bug in perf which makes it unable to record samples from CPUs that become
     online when recording is already underway.
 
     Args:
       force_online: True to set all CPUs online, False to return them under
           system power management control.
     """
     def ForceCpuOnline(online_path):
       script = 'chmod 644 {0}; echo 1 > {0}; chmod 444 {0}'.format(online_path)
-      self._device.old_interface.RunShellCommandWithSU(script)
+      self._device.RunShellCommand(script, root=True)
       return self._device.old_interface.GetFileContents(online_path)[0] == '1'
 
     def ResetCpu(online_path):
-      self._device.old_interface.RunShellCommandWithSU(
-          'chmod 644 %s' % online_path)
+      self._device.RunShellCommand('chmod 644 %s' % online_path, root=True)
 
     def WaitFor(condition):
       for _ in range(100):
         if condition():
           return
         time.sleep(0.1)
       raise RuntimeError('Timed out')
 
-    cpu_online_files = self._device.old_interface.RunShellCommand(
+    cpu_online_files = self._device.RunShellCommand(
         'ls -d /sys/devices/system/cpu/cpu[0-9]*/online')
     for online_path in cpu_online_files:
       if force_online:
         WaitFor(lambda: ForceCpuOnline(online_path))
       else:
         ResetCpu(online_path)