[Android] Reland cleanup of old_interface in build/android/pylib.

build/android/pylib/utils/test_environment.py

Index: build/android/pylib/utils/test_environment.py
diff --git a/build/android/pylib/utils/test_environment.py b/build/android/pylib/utils/test_environment.py
index 4d88a45e6523fefbc2f4abf212553ea1339e5f18..f55a4acc100997aeb1bc5b4e7ee69caca73056d8 100644
--- a/build/android/pylib/utils/test_environment.py
+++ b/build/android/pylib/utils/test_environment.py
@@ -34,13 +34,14 @@ def CleanupLeftoverProcesses():
   """Clean up the test environment, restarting fresh adb and HTTP daemons."""
   _KillWebServers()
   device_utils.RestartServer()
-  p = device_utils.DeviceUtils.parallel()
-  p.old_interface.RestartAdbdOnDevice()
-  try:
-    p.EnableRoot()
-  except device_errors.CommandFailedError as e:
-    # TODO(jbudorick) Handle this exception appropriately after interface
-    #                 conversions are finished.
-    logging.error(str(e))
-  p.WaitUntilFullyBooted()
+
+  def cleanup_device(d):
+    d.RestartAdbd()
+    try:
+      d.EnableRoot()
+    except device_errors.CommandFailedError as e:
+      logging.error(str(e))
+    d.WaitUntilFullyBooted()
+
+  device_utils.DeviceUtils.parallel().pMap(cleanup_device)