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

tools/telemetry/telemetry/core/backends/adb_commands.py

Index: tools/telemetry/telemetry/core/backends/adb_commands.py
diff --git a/tools/telemetry/telemetry/core/backends/adb_commands.py b/tools/telemetry/telemetry/core/backends/adb_commands.py
index ffa307ef35f6741386d1e69ac2a5e1d97e3d87d2..9cc9d25282dc7d77af0a5201b08cb7235c687fe0 100644
--- a/tools/telemetry/telemetry/core/backends/adb_commands.py
+++ b/tools/telemetry/telemetry/core/backends/adb_commands.py
@@ -87,7 +87,7 @@ class AdbCommands(object):
     self._device.Install(apk_path)
 
   def IsUserBuild(self):
-    return self._device.old_interface.GetBuildType() == 'user'
+    return self._device.GetProp('ro.build.type') == 'user'
 
 
 def GetBuildTypeOfPath(path):
@@ -121,7 +121,7 @@ def SetupPrebuiltTools(adb):
   if platform.GetHostPlatform().GetOSName() == 'linux':
     host_tools.append('host_forwarder')
 
-  has_device_prebuilt = adb.system_properties['ro.product.cpu.abi'].startswith(
+  has_device_prebuilt = adb.device().GetProp('ro.product.cpu.abi').startswith(
       'armeabi')
   if not has_device_prebuilt:
     return all([support_binaries.FindLocallyBuiltPath(t) for t in device_tools])