[Bindings] Add option parser in aggregate_generated_bindings.py

third_party/WebKit/Source/bindings/core/v8/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 IDL bindings for core, plus aggregate bindings files.
 #
 # Design doc: http://www.chromium.org/developers/design-documents/idl-build
 
 {
   'includes': [
@@ skipping 96 matching lines @@
         '<(bindings_scripts_dir)/aggregate_generated_bindings.py',
         '<(core_idl_files_list)',
         '<@(core_interface_idl_files)',
       ],
       'outputs': [
         '<@(bindings_core_v8_generated_aggregate_files)',
       ],
       'action': [
         'python',
         '<(bindings_scripts_dir)/aggregate_generated_bindings.py',
+        '--component-directory',
         'core',
+        '--input-file',
         '<(core_idl_files_list)',
-        '--',
         '<@(bindings_core_v8_generated_aggregate_files)',
       ],
       'message': 'Generating aggregate generated core V8 bindings files',
     }],
   },
 ################################################################################
   {
     # GN version: //third_party/WebKit/Source/bindings/core/v8:bindings_core_impl_generated
     # http://crbug.com/358074; See comments on
     # 'bindings_core_v8_generated_individual' target
@@ skipping 58 matching lines @@
     'type': 'none',
     'dependencies': [
       'bindings_core_impl_generated',
       'bindings_core_v8_generated_aggregate',
       'bindings_core_v8_generated_individual',
     ],
   },
 ################################################################################
   ],  # targets
 }