[Sync] Fix sync lint errors/includes, update presubmit.

components/sync/PRESUBMIT.py

 # Copyright 2016 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 sync component.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 43 matching lines @@
 MODEL_TYPE_END_PATTERN = '^\};'
 
 # Strings relating to files we'll need to read.
 # model_type.cc is where the ModelTypeInfoMap is
 # sync.proto is where the proto definitions for ModelTypes are.
 PROTO_FILE_PATH = './protocol/sync.proto'
 MODEL_TYPE_FILE_NAME = 'model_type.cc'
 
 SYNC_SOURCE_FILES = (r'^components[\\/]sync[\\/].*\.(cc|h)$',)
 
+# The wrapper around lint that is called below disables a set of filters if the
+# passed filter evaluates to false. Pass a junk filter to avoid this behavior.
+LINT_FILTERS = ['+fake/filter']
+
 def CheckModelTypeInfoMap(input_api, output_api, model_type_file):
   """Checks the kModelTypeInfoMap in model_type.cc follows conventions.
   Checks that the kModelTypeInfoMap follows the below rules:
     1) The model type string should match the model type name, but with
        only the first letter capitalized and spaces instead of underscores.
     2) The root tag should be the same as the model type but all lowercase.
     3) The notification type should match the proto message name.
     4) No duplicate data across model types.
    Args:
     input_api: presubmit_support InputApi instance
@@ skipping 285 matching lines @@
     FieldNumberToPrototypeString('EntitySpecifics::kAppFieldNumber')
     => 'AppSpecifics'
   """
   return field_number.replace(FIELD_NUMBER_PREFIX, '').replace(
     'FieldNumber', 'Specifics').replace(
     'AppNotificationSpecifics', 'AppNotification')
 
 def CheckChangeLintsClean(input_api, output_api):
   source_filter = lambda x: input_api.FilterSourceFile(
     x, white_list=SYNC_SOURCE_FILES, black_list=None)
-
   return input_api.canned_checks.CheckChangeLintsClean(
-      input_api, output_api, source_filter, lint_filters=[], verbose_level=1)
+      input_api, output_api, source_filter, lint_filters=LINT_FILTERS,
+      verbose_level=1)
 
 def CheckChanges(input_api, output_api):
   results = []
   results += CheckChangeLintsClean(input_api, output_api)
   results += input_api.canned_checks.CheckPatchFormatted(input_api, output_api)
   for f in input_api.AffectedFiles():
     if f.LocalPath().endswith(MODEL_TYPE_FILE_NAME):
       return CheckModelTypeInfoMap(input_api, output_api, f)
   return results
 
 def CheckChangeOnUpload(input_api, output_api):
   return CheckChanges(input_api, output_api)
 
 def CheckChangeOnCommit(input_api, output_api):
   return CheckChanges(input_api, output_api)