[Android] Add a custom pylintrc for build/android/.

build/android/pylib/gtest/test_package_apk.py

 # Copyright (c) 2012 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.
 
 """Defines TestPackageApk to help run APK-based native tests."""
 # pylint: disable=W0212
 
-import itertools
 import logging
 import os
-import posixpath
-import shlex
 import sys
-import tempfile
 import time
 
 from devil.android import device_errors
 from devil.android.sdk import intent
 from pylib import constants
 from pylib import pexpect
 from pylib.gtest import gtest_test_instance
 from pylib.gtest import local_device_gtest_run
 from pylib.gtest.test_package import TestPackage
 
@@ skipping 32 matching lines @@
     #     NativeTestActivity.java and
     # testing/android/native_test_launcher.cc
     return '/data/data/' + self._package_info.package + '/files/test.fifo'
 
   def _ClearFifo(self, device):
     device.RunShellCommand('rm -f ' + self._GetFifo())
 
   def _WatchFifo(self, device, timeout, logfile=None):
     for i in range(100):
       if device.FileExists(self._GetFifo()):
-        logging.info('Fifo created. Slept for %f secs' % (i * 0.5))
+        logging.info('Fifo created. Slept for %f secs', i * 0.5)
         break
       time.sleep(0.5)
     else:
       raise device_errors.DeviceUnreachableError(
           'Unable to find fifo on device %s ' % self._GetFifo())
     args = ['-s', device.adb.GetDeviceSerial(), 'shell', 'cat', self._GetFifo()]
     return pexpect.spawn('adb', args, timeout=timeout, logfile=logfile)
 
   def _StartActivity(self, device, force_stop=True):
     device.StartActivity(
@@ skipping 79 matching lines @@
 
   #override
   def Install(self, device):
     self.tool.CopyFiles(device)
     device.Install(self.suite_path)
 
   #override
   def PullAppFiles(self, device, files, directory):
     local_device_gtest_run.PullAppFilesImpl(
         device, self._package_info.package, files, directory)