GN: Side-load dex files as well as native code in incremental installs

build/android/PRESUBMIT.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.
 
 """Presubmit script for android buildbot.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into depot_tools.
 """
 
 
 def CommonChecks(input_api, output_api):
   output = []
 
   def J(*dirs):
     """Returns a path relative to presubmit directory."""
     return input_api.os_path.join(input_api.PresubmitLocalPath(), *dirs)
 
+  build_pys = [
+      r'gyp/.*\.py$',
+      r'gn/.*\.py',
+      r'incremental_install/.*\.py',
+  ]
   output.extend(input_api.canned_checks.RunPylint(
       input_api,
       output_api,
       pylintrc='pylintrc',
-      black_list=[r'pylib/symbols/.*\.py$', r'gyp/.*\.py$', r'gn/.*\.py'],
+      # symbols has its own PRESUBMIT.py
+      black_list=build_pys + [r'pylib/symbols/.*\.py$'],
       extra_paths_list=[J(), J('buildbot')]))
   output.extend(input_api.canned_checks.RunPylint(
       input_api,
       output_api,
-      white_list=[r'gyp/.*\.py$', r'gn/.*\.py'],
+      white_list=build_pys,
       extra_paths_list=[J('gyp'), J('gn')]))
 
   # Disabled due to http://crbug.com/410936
   #output.extend(input_api.canned_checks.RunUnitTestsInDirectory(
   #input_api, output_api, J('buildbot', 'tests')))
 
   pylib_test_env = dict(input_api.environ)
   pylib_test_env.update({
       'PYTHONPATH': input_api.PresubmitLocalPath(),
       'PYTHONDONTWRITEBYTECODE': '1',
@@ skipping 16 matching lines @@
       env=pylib_test_env))
   return output
 
 
 def CheckChangeOnUpload(input_api, output_api):
   return CommonChecks(input_api, output_api)
 
 
 def CheckChangeOnCommit(input_api, output_api):
   return CommonChecks(input_api, output_api)