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

tools/memory_inspector/memory_inspector/backends/android/android_backend.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.
 
 """Android-specific implementation of the core backend interfaces.
 
 See core/backends.py for more docs.
 """
 
 import datetime
@@ skipping 148 matching lines @@
 
   _SETTINGS_KEYS = {
       'native_symbol_paths': 'Semicolon-sep. list of native libs search path'}
 
   def __init__(self, backend, underlying_device):
     super(AndroidDevice, self).__init__(
         backend=backend,
         settings=backends.Settings(AndroidDevice._SETTINGS_KEYS))
     self.underlying_device = underlying_device
     self._id = underlying_device.old_interface.GetDevice()
-    self._name = underlying_device.old_interface.GetProductModel()
+    self._name = underlying_device.GetProp('ro.product.model')
     self._sys_stats = None
     self._last_device_stats = None
     self._sys_stats_last_update = None
     self._processes = {}  # pid (int) -> |Process|
     self._initialized = False
 
   def Initialize(self):
     """Starts adb root and deploys the prebuilt binaries on initialization."""
     try:
       self.underlying_device.EnableRoot()
     except device_errors.CommandFailedError as e:
       # Try to deploy memdump and ps_ext anyway.
       # TODO(jbudorick) Handle this exception appropriately after interface
       #                 conversions are finished.
       logging.error(str(e))
 
     # Download (from GCS) and deploy prebuilt helper binaries on the device.
     self._DeployPrebuiltOnDeviceIfNeeded(_MEMDUMP_PREBUILT_PATH,
                                          _MEMDUMP_PATH_ON_DEVICE)
     self._DeployPrebuiltOnDeviceIfNeeded(_PSEXT_PREBUILT_PATH,
                                          _PSEXT_PATH_ON_DEVICE)
     self._initialized = True
 
   def IsNativeTracingEnabled(self):
     """Checks for the libc.debug.malloc system property."""
-    return bool(self.underlying_device.old_interface.system_properties[
-        _DLMALLOC_DEBUG_SYSPROP])
+    return bool(self.underlying_device.GetProp(
+        _DLMALLOC_DEBUG_SYSPROP))
 
   def EnableNativeTracing(self, enabled):
     """Enables libc.debug.malloc and restarts the shell."""
     assert(self._initialized)
     prop_value = '1' if enabled else ''
-    self.underlying_device.old_interface.system_properties[
-        _DLMALLOC_DEBUG_SYSPROP] = prop_value
+    self.underlying_device.SetProp(_DLMALLOC_DEBUG_SYSPROP, prop_value)
     assert(self.IsNativeTracingEnabled())
     # The libc.debug property takes effect only after restarting the Zygote.
     self.underlying_device.old_interface.RestartShell()
 
   def ListProcesses(self):
     """Returns a sequence of |AndroidProcess|."""
     self._RefreshProcessesList()
     return self._processes.itervalues()
 
   def GetProcess(self, pid):
@@ skipping 141 matching lines @@
     proc_stats = backends.ProcessStats(
         threads=cur_proc_stats['n_threads'],
         run_time=run_time,
         cpu_usage=cpu_usage,
         vm_rss=cur_proc_stats['vm_rss'],
         page_faults=(
             (cur_proc_stats['maj_faults'] + cur_proc_stats['min_faults']) -
             (old_proc_stats['maj_faults'] + old_proc_stats['min_faults'])))
     self._last_sys_stats = cur_sys_stats
     return proc_stats