Update from https://crrev.com/308331

build/android/pylib/base/test_instance_factory.py

Index: build/android/pylib/base/test_instance_factory.py
diff --git a/build/android/pylib/base/test_instance_factory.py b/build/android/pylib/base/test_instance_factory.py
index 5204b2e1d5bd5b37578b0d282aababea22e1d6a9..af989efd4c23e8ccbd540e1a31479309c3774944 100644
--- a/build/android/pylib/base/test_instance_factory.py
+++ b/build/android/pylib/base/test_instance_factory.py
@@ -5,6 +5,8 @@
 from pylib import constants
 from pylib.gtest import gtest_test_instance
 from pylib.utils import isolator
+from pylib.uirobot import uirobot_test_instance
+
 
 
 def CreateTestInstance(args, error_func):
@@ -12,7 +14,8 @@ def CreateTestInstance(args, error_func):
   if args.command == 'gtest':
     return gtest_test_instance.GtestTestInstance(
         args, isolator.Isolator(constants.ISOLATE_DEPS_DIR))
+  if args.command == 'uirobot':
+    return uirobot_test_instance.UirobotTestInstance(args)
   # TODO(jbudorick) Add instrumentation test instance.
 
   error_func('Unable to create %s test instance.' % args.command)
-