Upstream: Ignore android.util.Log usage in WebAPK code

PRESUBMIT.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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 1421 matching lines @@
         errors))
 
   return results
 
 
 def _CheckAndroidCrLogUsage(input_api, output_api):
   """Checks that new logs using org.chromium.base.Log:
     - Are using 'TAG' as variable name for the tags (warn)
     - Are using a tag that is shorter than 20 characters (error)
   """
+
+  # Do not check format of logs in //chrome/android/webapk because
+  # //chrome/android/webapk cannot depend on //base
+  cr_log_check_excluded_paths = [
+    r"^chrome[\\\/]android[\\\/]webapk[\\\/].*",
+  ]
+
   cr_log_import_pattern = input_api.re.compile(
       r'^import org\.chromium\.base\.Log;$', input_api.re.MULTILINE)
   class_in_base_pattern = input_api.re.compile(
       r'^package org\.chromium\.base;$', input_api.re.MULTILINE)
   has_some_log_import_pattern = input_api.re.compile(
       r'^import .*\.Log;$', input_api.re.MULTILINE)
   # Extract the tag from lines like `Log.d(TAG, "*");` or `Log.d("TAG", "*");`
   log_call_pattern = input_api.re.compile(r'^\s*Log\.\w\((?P<tag>\"?\w+\"?)\,')
   log_decl_pattern = input_api.re.compile(
       r'^\s*private static final String TAG = "(?P<name>(.*))";',
       input_api.re.MULTILINE)
 
   REF_MSG = ('See docs/android_logging.md '
             'or contact dgn@chromium.org for more info.')
-  sources = lambda x: input_api.FilterSourceFile(x, white_list=(r'.*\.java$',))
+  sources = lambda x: input_api.FilterSourceFile(x, white_list=(r'.*\.java$',),
+      black_list=cr_log_check_excluded_paths)
 
   tag_decl_errors = []
   tag_length_errors = []
   tag_errors = []
   tag_with_dot_errors = []
   util_log_errors = []
 
   for f in input_api.AffectedSourceFiles(sources):
     file_content = input_api.ReadFile(f)
     has_modified_logs = False
@@ skipping 659 matching lines @@
   results.extend(input_api.canned_checks.CheckTreeIsOpen(
       input_api,
       output_api,
       json_url='http://chromium-status.appspot.com/current?format=json'))
 
   results.extend(input_api.canned_checks.CheckChangeHasBugField(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasDescription(
       input_api, output_api))
   return results