Update from https://crrev.com/312398

tools/android/checkstyle/checkstyle.py

 # 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.
 
 """Script that is used by PRESUBMIT.py to run style checks on Java files."""
 
 import os
 import subprocess
 import xml.dom.minidom
 
 
 CHROMIUM_SRC = os.path.normpath(
     os.path.join(os.path.dirname(__file__),
                  os.pardir, os.pardir, os.pardir))
 CHECKSTYLE_ROOT = os.path.join(CHROMIUM_SRC, 'third_party', 'checkstyle',
                                'checkstyle-6.1-all.jar')
 
 
-def RunCheckstyle(input_api, output_api, style_file):
+def RunCheckstyle(input_api, output_api, style_file, black_list=None):
   if not os.path.exists(style_file):
     file_error = ('  Java checkstyle configuration file is missing: '
                   + style_file)
     return [output_api.PresubmitError(file_error)]
 
   # Filter out non-Java files and files that were deleted.
-  java_files = [x.LocalPath() for x in input_api.AffectedFiles(False, False)
+  java_files = [x.AbsoluteLocalPath() for x in input_api.AffectedSourceFiles(
+                lambda f: input_api.FilterSourceFile(f, black_list=black_list))
                 if os.path.splitext(x.LocalPath())[1] == '.java']
   if not java_files:
     return []
 
   # Run checkstyle
   checkstyle_env = os.environ.copy()
   checkstyle_env['JAVA_CMD'] = 'java'
   try:
     check = subprocess.Popen(['java', '-cp',
                               CHECKSTYLE_ROOT,
                               'com.puppycrawl.tools.checkstyle.Main', '-c',
                               style_file, '-f', 'xml'] + java_files,
-                             stdout=subprocess.PIPE, env=checkstyle_env)
+                              stdout=subprocess.PIPE, env=checkstyle_env)
     stdout, _ = check.communicate()
   except OSError as e:
     import errno
     if e.errno == errno.ENOENT:
       install_error = ('  checkstyle is not installed. Please run '
                        'build/install-build-deps-android.sh')
       return [output_api.PresubmitPromptWarning(install_error)]
 
   result_errors = []
   result_warnings = []
@@ skipping 17 matching lines @@
         result_errors.append(result)
       elif severity == 'warning':
         result_warnings.append(result)
 
   result = []
   if result_warnings:
     result.append(output_api.PresubmitPromptWarning('\n'.join(result_warnings)))
   if result_errors:
     result.append(output_api.PresubmitError('\n'.join(result_errors)))
   return result