[android] Make build_type a singleton.

build/android/pylib/monkey/test_runner.py

 # Copyright 2013 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.
 
 """Runs a monkey test on a single device."""
 
 import random
 
 from pylib.base import base_test_result
 from pylib.base import base_test_runner
 
 
 class TestRunner(base_test_runner.BaseTestRunner):
   """A TestRunner instance runs a monkey test on a single device."""
 
   def __init__(self, test_options, device, shard_index):
-    super(TestRunner, self).__init__(device, None, test_options.build_type)
+    super(TestRunner, self).__init__(device, None)
     self.options = test_options
 
   def _LaunchMonkeyTest(self):
     """Runs monkey test for a given package.
 
     Returns:
       Output from the monkey command on the device.
     """
 
     timeout_ms = self.options.event_count * self.options.throttle * 1.5
@@ skipping 40 matching lines @@
 
     results = base_test_result.TestRunResults()
     if 'Monkey finished' in output and not crashed:
       result = base_test_result.BaseTestResult(
           test_name, base_test_result.ResultType.PASS, log=output)
     else:
       result = base_test_result.BaseTestResult(
           test_name, base_test_result.ResultType.FAIL, log=output)
     results.AddResult(result)
     return results, False