[Android] Fix new pylint errors in build/android/.

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 import constants
 from pylib import flag_changer
 from pylib.device import intent
 from pylib.instrumentation import test_options as instr_test_options
@@ skipping 46 matching lines @@
 
   #override
   def PushDataDeps(self):
     pass
 
   #override
   def _RunTest(self, test, timeout):
     self.device.ClearApplicationState(self._package)
     if self.flags:
       annotations = self.test_pkg.GetTestAnnotations(test)
-      if ('FirstRunExperience' == annotations.get('Feature', None)):
+      if 'FirstRunExperience' == annotations.get('Feature', None):
         self.flags.RemoveFlags(['--disable-fre'])
       else:
         self.flags.AddFlags(['--disable-fre'])
     self.device.StartActivity(
         intent.Intent(action='android.intent.action.MAIN',
                       activity=self._activity,
                       package=self._package),
         blocking=True,
         force_stop=True)
     cmd = ['uiautomator', 'runtest',
            self.test_pkg.UIAUTOMATOR_PATH + self.test_pkg.GetPackageName(),
            '-e', 'class', test]
     return self.device.RunShellCommand(cmd, timeout=timeout, retries=0)
 
   #override
   def _GenerateTestResult(self, test, instr_statuses, start_ms, duration_ms):
     # uiautomator emits its summary status with INSTRUMENTATION_STATUS_CODE,
     # not INSTRUMENTATION_CODE, so we have to drop if off the list of statuses.
     return super(TestRunner, self)._GenerateTestResult(
         test, instr_statuses[:-1], start_ms, duration_ms)