Enable presubmit pylint in build/android.

build/android/gyp/apk_install.py

 #!/usr/bin/env python
 #
 # 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.
 
 """Installs an APK.
 
 """
 
 import optparse
 import os
 import re
-import subprocess
 import sys
 
 from util import build_device
 from util import build_utils
 from util import md5_check
 
 BUILD_ANDROID_DIR = os.path.join(os.path.dirname(__file__), '..')
 sys.path.append(BUILD_ANDROID_DIR)
 
 from pylib import constants
 from pylib.utils import apk_helper
 
 def GetNewMetadata(device, apk_package):
   """Gets the metadata on the device for the apk_package apk."""
   output = device.RunShellCommand('ls -l /data/app/')
+  # pylint: disable=C0301
   # Matches lines like:
   # -rw-r--r-- system   system    7376582 2013-04-19 16:34 org.chromium.chrome.testshell.apk
   # -rw-r--r-- system   system    7376582 2013-04-19 16:34 org.chromium.chrome.testshell-1.apk
+  # pylint: enable=C0301
   apk_matcher = lambda s: re.match('.*%s(-[0-9]*)?.apk$' % apk_package, s)
   matches = filter(apk_matcher, output)
   return matches[0] if matches else None
 
 def HasInstallMetadataChanged(device, apk_package, metadata_path):
   """Checks if the metadata on the device for apk_package has changed."""
   if not os.path.exists(metadata_path):
     return True
 
   with open(metadata_path, 'r') as expected_file:
     return expected_file.read() != device.GetInstallMetadata(apk_package)
 
 
 def RecordInstallMetadata(device, apk_package, metadata_path):
   """Records the metadata from the device for apk_package."""
   metadata = GetNewMetadata(device, apk_package)
   if not metadata:
     raise Exception('APK install failed unexpectedly.')
 
   with open(metadata_path, 'w') as outfile:
     outfile.write(metadata)
 
 
-def main(argv):
+def main():
   parser = optparse.OptionParser()
   parser.add_option('--apk-path',
       help='Path to .apk to install.')
   parser.add_option('--install-record',
       help='Path to install record (touched only when APK is installed).')
   parser.add_option('--build-device-configuration',
       help='Path to build device configuration.')
   parser.add_option('--stamp',
       help='Path to touch on success.')
   parser.add_option('--configuration-name',
@@ skipping 27 matching lines @@
       Install,
       record_path=record_path,
       input_paths=[options.apk_path],
       force=force_install)
 
   if options.stamp:
     build_utils.Touch(options.stamp)
 
 
 if __name__ == '__main__':
-  sys.exit(main(sys.argv))
+  sys.exit(main())