Split modules-dependent Event code in core.

Source/bindings/core_bindings_generated.gyp

-# Copyright 2014 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.
-
-# Generate EventInterfaces.in, used by core/ but depends on modules/,
-# hence placed in bindings/ to avoid direct core/ -> modules/ dependency.
-
-{
-  'includes': [
-    'bindings.gypi',
-    '../core/core.gypi',
-    '../modules/modules.gypi',
-  ],
-
-  'targets': [
-  {
-    'target_name': 'core_bindings_generated',
-    'type': 'none',
-    'actions': [
-      {
-        'action_name': 'event_interfaces',
-        'variables': {
-          'event_idl_files': [
-            '<@(core_event_idl_files)',
-            '<@(modules_event_idl_files)',
-          ],
-          'event_idl_files_list':
-              '<|(event_idl_files_list.tmp <@(event_idl_files))',
-        },
-        'inputs': [
-          '../bindings/scripts/generate_event_interfaces.py',
-          '../bindings/scripts/utilities.py',
-          '<(event_idl_files_list)',
-          '<@(event_idl_files)',
-        ],
-        'outputs': [
-          '<(blink_output_dir)/EventInterfaces.in',
-        ],
-        'action': [
-          'python',
-          '../bindings/scripts/generate_event_interfaces.py',
-          '--event-idl-files-list',
-          '<(event_idl_files_list)',
-          '--event-interfaces-file',
-          '<(blink_output_dir)/EventInterfaces.in',
-          '--write-file-only-if-changed',
-          '<(write_file_only_if_changed)',
-        ],
-      },
-    ],
-  },
-  ],  # targets
-}