Clean content_settings_pattern_parser.* from unnecessary dependencies.

chrome/chrome_common.gypi

 # 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.
 
 {
   'variables': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       '../apps/app_shim/app_shim_launch.h',
       '../apps/app_shim/app_shim_messages.h',
@@ skipping 34 matching lines @@
       'common/common_param_traits.cc',
       'common/common_param_traits.h',
       'common/common_param_traits_macros.h',
       'common/content_restriction.h',
       'common/content_settings.cc',
       'common/content_settings.h',
       'common/content_settings_pattern.cc',
       'common/content_settings_pattern.h',
       'common/content_settings_pattern_parser.cc',
       'common/content_settings_pattern_parser.h',
+      'common/content_settings_pattern_serializer.cc',
+      'common/content_settings_pattern_serializer.h',
       'common/crash_keys.cc',
       'common/crash_keys.h',
       'common/custom_handlers/protocol_handler.cc',
       'common/custom_handlers/protocol_handler.h',
       'common/descriptors_android.h',
       'common/extensions/api/extension_action/action_info.cc',
       'common/extensions/api/extension_action/action_info.h',
       'common/extensions/api/i18n/default_locale_handler.cc',
       'common/extensions/api/i18n/default_locale_handler.h',
       'common/extensions/api/identity/oauth2_manifest_handler.cc',
@@ skipping 628 matching lines @@
         'common/safe_browsing/csd.proto'
       ],
       'variables': {
         'proto_in_dir': 'common/safe_browsing',
         'proto_out_dir': 'chrome/common/safe_browsing',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }