Split bindings/v8/custom into core and modules.

Source/modules/modules.gyp

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 33 matching lines @@
       '../config.gyp:config',
       '../core/core.gyp:webcore',
       'make_modules_generated',
     ],
     'defines': [
       'BLINK_IMPLEMENTATION=1',
       'INSIDE_BLINK',
     ],
     'sources': [
       '<@(modules_files)',
+      '<@(bindings_modules_v8_files)',
       '<@(bindings_modules_v8_generated_aggregate_files)',
     ],
     'actions': [
       {
         # GN version: //third_party/WebKit/Source/modules:modules_fetch_polyfill
         'action_name': 'FetchPolyfill',
         'process_outputs_as_sources': 1,
         'variables': {
             'resources': [
                  'serviceworkers/polyfills/fetchPolyfill.js',
@@ skipping 103 matching lines @@
     ],
     'sources': [
       # bison rule
       '../core/css/CSSGrammar.y',
       '../core/xml/XPathGrammar.y',
     ],
     'actions': [
     ],
   }],
 }