Add first sketch of the webmodules code generator.

third_party/WebKit/Source/bindings/scripts/scripts.gni

 # 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.
 
 import("//third_party/WebKit/Source/core/core_idl_files.gni")
 import("//third_party/WebKit/Source/modules/modules_idl_files.gni")
 
 bindings_scripts_dir = get_path_info(".", "abspath")
 bindings_scripts_output_dir = "$root_gen_dir/blink/bindings/scripts"
 
@@ skipping 23 matching lines @@
                                      # Blink IDL front end (ex-lexer/parser)
                                      "idl_definitions.py",
                                      "idl_reader.py",
                                      "idl_types.py",
                                      "idl_validator.py",
                                      "interface_dependency_resolver.py",
 
                                      # V8 code generator
                                      "code_generator.py",
                                      "code_generator_v8.py",
+                                     "code_generator_web_module.py",
                                      "v8_attributes.py",
                                      "v8_callback_function.py",
                                      "v8_callback_interface.py",
                                      "v8_dictionary.py",
                                      "v8_globals.py",
                                      "v8_interface.py",
                                      "v8_methods.py",
                                      "v8_types.py",
                                      "v8_union.py",
                                      "v8_utilities.py",
@@ skipping 313 matching lines @@
       args += [ rebase_path(output_idl_file, root_build_dir) ]
       output_idl_files += [ output_idl_file ]
       output_header_files +=
           [ "$output_dir/${interface}${component}Constructors.h" ]
     }
 
     outputs = output_idl_files + output_header_files
     deps = invoker.deps
   }
 }