Fix android UI Automator python script because of new param added.

build/android/pylib/uiautomator/test_runner.py

 # Copyright (c) 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.
 
 """Class for running uiautomator tests on a single device."""
 
 from pylib.instrumentation import test_options as instr_test_options
 from pylib.instrumentation import test_runner as instr_test_runner
 
 
@@ skipping 17 matching lines @@
         test_options.tool,
         test_options.cleanup_test_files,
         test_options.push_deps,
         test_options.annotations,
         test_options.exclude_annotations,
         test_options.test_filter,
         test_options.test_data,
         test_options.save_perf_json,
         test_options.screenshot_failures,
         wait_for_debugger=False,
+        coverage_dir=None,
         test_apk=None,
         test_apk_path=None,
         test_apk_jar_path=None)
     super(TestRunner, self).__init__(instrumentation_options, device,
                                      shard_index, test_pkg, ports_to_forward)
 
     self.package_name = test_options.package_name
 
   #override
   def InstallTestPackage(self):
     self.test_pkg.Install(self.adb)
 
   #override
   def PushDataDeps(self):
     pass
 
   #override
   def _RunTest(self, test, timeout):
     self.adb.ClearApplicationState(self.package_name)
     if 'Feature:FirstRunExperience' in self.test_pkg.GetTestAnnotations(test):
       self.flags.RemoveFlags(['--disable-fre'])
     else:
       self.flags.AddFlags(['--disable-fre'])
     return self.adb.RunUIAutomatorTest(
         test, self.test_pkg.GetPackageName(), timeout)