[Bindings] Add option parser in aggregate_generated_bindings.py

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/bindings/core/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/modules/idl.gni")
 import("//third_party/WebKit/Source/bindings/modules/modules.gni")
 
 bindings_scripts_dir = get_path_info(".", "abspath")
 bindings_scripts_output_dir = "$root_gen_dir/blink/bindings/scripts"
@@ skipping 243 matching lines @@
 
     # Write lists of main IDL files to a file, so that the command lines don't
     # exceed OS length limits.
     idl_files_list = "$target_gen_dir/${target_name}_file_list.tmp"
     write_file(idl_files_list, rebase_path(invoker.sources, root_build_dir))
 
     inputs = [ idl_files_list ] + invoker.sources
     outputs = invoker.outputs
 
     args = [
+      "--component-directory",
       invoker.component_dir,
+      "--input-file",
       rebase_path(idl_files_list, root_build_dir),
-      "--",
     ]
     args += rebase_path(invoker.outputs, root_build_dir)
   }
 }
 
 # Calls the compute_global_objects script.
 #
 # Parameters:
 #   sources = a list of source IDL files.
 #   sources_generated = a list of generated pickle sources.
@@ skipping 77 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
   }
 }