[Android] Switch to DeviceUtils versions of Ls, SetJavaAsserts, GetProp, and SetProp.

tools/android/adb_profile_chrome/chrome_controller.py

 # Copyright 2014 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 json
 import os
 import re
 import time
 
 from adb_profile_chrome import controllers
@@ skipping 50 matching lines @@
     self._device.old_interface.SyncLogCat()
     start_extras = {'categories': ','.join(self._categories)}
     if self._ring_buffer:
       start_extras['continuous'] = None
     self._device.BroadcastIntent(intent.Intent(
         action='%s.GPU_PROFILER_START' % self._package_info.package,
         extras=start_extras))
 
     if self._trace_memory:
       self._device.old_interface.EnableAdbRoot()
-      self._device.old_interface.system_properties \
-          [_HEAP_PROFILE_MMAP_PROPERTY] = 1
+      self._device.SetProp(_HEAP_PROFILE_MMAP_PROPERTY, 1)
 
     # Chrome logs two different messages related to tracing:
     #
     # 1. "Logging performance trace to file"
     # 2. "Profiler finished. Results are in [...]"
     #
     # The first one is printed when tracing starts and the second one indicates
     # that the trace file is ready to be pulled.
     try:
       self._device.old_interface.WaitForLogMatch(
           self._trace_start_re, None, timeout=5)
     except pexpect.TIMEOUT:
       raise RuntimeError('Trace start marker not found. Is the correct version '
                          'of the browser running?')
 
   def StopTracing(self):
     self._device.BroadcastIntent(intent.Intent(
         action='%s.GPU_PROFILER_STOP' % self._package_info.package))
     self._trace_file = self._device.old_interface.WaitForLogMatch(
         self._trace_finish_re, None, timeout=120).group(1)
     if self._trace_memory:
-      self._device.old_interface.system_properties \
-          [_HEAP_PROFILE_MMAP_PROPERTY] = 0
+      self._device.SetProp(_HEAP_PROFILE_MMAP_PROPERTY, 0)
 
   def PullTrace(self):
     # Wait a bit for the browser to finish writing the trace file.
     time.sleep(self._trace_interval / 4 + 1)
 
     trace_file = self._trace_file.replace('/storage/emulated/0/', '/sdcard/')
     host_file = os.path.join(os.path.curdir, os.path.basename(trace_file))
     self._device.PullFile(trace_file, host_file)
     return host_file