[Android] Implement perf tests to platform mode.

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 523b4c5be1ebe67d193aacbbaacab8b771f1ce37..939b9dd5f68b50d6161a6cc5dca07ddcb3fd200d 100644
--- a/build/android/pylib/base/test_instance_factory.py
+++ b/build/android/pylib/base/test_instance_factory.py
@@ -4,6 +4,7 @@
 
 from pylib.gtest import gtest_test_instance
 from pylib.instrumentation import instrumentation_test_instance
+from pylib.perf import perf_test_instance
 from pylib.uirobot import uirobot_test_instance
 from pylib.utils import isolator
 
@@ -18,5 +19,7 @@ def CreateTestInstance(args, error_func):
         args, isolator.Isolator(), error_func)
   elif args.command == 'uirobot':
     return uirobot_test_instance.UirobotTestInstance(args, error_func)
+  elif args.command == 'perf':
+    return perf_test_instance.PerfTestInstance(args, error_func)
 
   error_func('Unable to create %s test instance.' % args.command)